Search for deadly in Topics


Homemade Lava Lamp

Is it possible to make your own lava lamp? Like have a wine bottle, fill with paraffin wax and water, and put on top of a lightbulb contraption thing? Is this safe?

Topic by JellyWoo    |  last reply


killer knex gun

It it actually possable to kill with a knex gun (this is not and excuse to actually try it- shoot something thats already dead (like a piece of meat))

Topic by realcelestialphoenix    |  last reply


L.A.S.E.R.

This laser says: 240mw pulsed, 100mW CW 5.6mm red laser diode does that mean that it's 240mW or 100mW? Should I install it in a 5.6mm laser module? if I were to hook it up to AAA should i just put a 1/4watt, 1.8 ohm resistor in series?

Topic by guyfrom7up    |  last reply


Could I build a giant crossbow?

using a section of a leaf spring from a truck, put it on a substantial piece of lumber, pull it back with an electric winch and remotely fire broomstick sized bolts

Question by t0mbutler    |  last reply


Deadly Poisons Are Being Pumped Into Our Homes!

After a conversation with ll.13, I have come to the shocking realization that many people don't know about the deadly poison that is pumped into our water supply. It's called DiHydrogen Monoxide, and it is very dangerous. Look at some of the dangers associated with DHMO.Death due to accidental inhalation of DHMO, even in small quantities.Prolonged exposure to solid DHMO causes severe tissue damage.Excessive ingestion produces a number of unpleasant though not typically life-threatening side-effects.DHMO is a major component of acid rain.Gaseous DHMO can cause severe burns.Contributes to soil erosion.Leads to corrosion and oxidation of many metals.Contamination of electrical systems often causes short-circuits.Exposure decreases effectiveness of automobile brakes.Found in biopsies of pre-cancerous tumors and lesions.Given to vicious dogs involved in recent deadly attacks.Often associated with killer cyclones in the U.S. Midwest and elsewhere, and in hurricanes including deadly storms in Florida, New Orleans and other areas of the southeastern U.S.Thermal variations in DHMO are a suspected contributor to the El Nino weather effect.The scariest part is that most people don't even know what it is! One poor sap actually ingested it, AND instructed others to do so in his instructable here.You can find out more about this deadly compound at DHMO.org.Be aware and stay alive!

Topic by Gjdj3    |  last reply


Are electric vehicles deadly dangerous to build and repair? Answered

A local high school tech class is converting a pick-up truck to electric and I got the idea that I could convert our Explorer, (the engine is shot) but an auto mechanic I met told me he can't get insurance to work on an EV due to the danger of the high voltage- this is disappointing to me because I could really get a lot of use from re-purposing this truck to a green(er) vehicle. Help me be more green!

Question by paganwonder    |  last reply


DIY Coilgun very pretty, not so deadly

Want to scare someone with a pretty frightening looking gun? This DIY coilgun will get that job done. With the projectiles going out at only 100 fps this is far from a deadly weapon, but just look at it! The $130 pricetag is almost enough for the looks alone. Full specs below.Fully semi-automatic, up to 14 shots.Capable of delivering over 18J kinetic energy, and speeds up to 110km/h! (42 gram projectiles).It's a single stage gun, using a 8800uF capacitor bank with max 400v (704J).Max shot efficiency is 2.8% but reaches almost 4% at lower voltages.Charge time for 300v (12J kinetic energy 396J capacitor bank) is 8 seconds for the mains connection, and when using the internal batteries about 90 seconds. It also has a Digital voltage display.Coil overheat after 14 shots at 300v.Total weight: 5 kilogram.Total spend: ~ 100 EuroConstruction time: ~40 Hrs DIY Coilgun via engadget

Topic by fungus amungus    |  last reply


Need help with my hidden blade design. Answered

Okay, so I'm thinking of making a hidden blade (Assassins creed style) and i thought a copper tube with a smaller copper (or pvc) tube inside would do for the sliding mechanism. To make it not slide with everything I put a weak magnet on the bottom so it will only slide with some force. The braking system (so the blade wouldn't fall out) is a rubber ring at the top that will let the blade through but not the copper tube. The only thing I need help with is the system that will prevent the blade from going back in the outer-tube. So plz help me with a design for that. I don't care if I have to put a switch or something to get it back in, it doesn't need to be with 1 hand.

Question by wwwouter    |  last reply


I hav a zippo and an austrian lighter.How can I turn these into deadly weapons.plz help?

I hav a zippo and an austrian lighter.How can I turn these into deadly weapons.plz help?

Question    |  last reply


How can I make a deadly laser out of a flashlight and a ziplock baggy full of water. Answered

My science teacher told me about how you can make a laser out of a flash light and I wanted to see it for my self.

Question by Rebreg    |  last reply


any knexers have a skype/aim?

Any knexers have a aim or skype just comment /pm me NOTE:my aim has changed it is now ksbf113

Topic by knexsuperbuilderfreak    |  last reply


electric valve

Where do i buy pilot assisted diaphragm valve used on mythbusters.    it was used in the deadly straw episode. at 3:42 to 4:06 on the youtube video called ;MythBusters Season 4 Episode 18 part 1 .  I want the exact size and brand valve.

Topic by m5industriesinc    |  last reply


metal laptop

Just finished "Idoru" by william gibson.The main character has a laptop with a cast aluminium case made from reclaimed soda canswirh semi precious stones as switches and buttons and reclaimed ivory keys. I suppuse its possible to do, but difficult... but wouldnt it be deadly? Anyone ever tried that?

Topic by maninamousesuit    |  last reply


D.R.A.G.O.N

This is one of my brothers crazy contraptions, its called the Deadly Rail Accelerated Gun Of Neutralization, or DRAGON. Its ridiculously powerful, and shoots farther than my rifle. It is also the first dual-rail rifle system on the site, providing it with extreme accuracy and power.

Topic by Big Z    |  last reply


Crocheted grenades make killing cute!

How cute can a grenade possibly be? About this cute. These crocheted versions of deadly explosives let you re-enact WWII scenarios with something that's fun to squeeze. Even the creator couldn't help but get into the act with the video below.Green 'round Grenades from WooWork on Vimeo.

Topic by fungus amungus    |  last reply


saltwater battery for R/C boat in saltwater? Answered

I Based it here:https://www.instructables.com/id/Water-Powered-Calculator/?ALLSTEPS  My plan is to put an exposed carbon electrode and an Aluminum Foil at the seawater while traveling to make it as the boat's battery  my problem is will I get Thousands of Volts that can be deadly or will i get just what I need  if the result is thousands of volts its the electric solution at some of the provinces here at the Philippines Thank you! -E

Question by crazy lazy man    |  last reply


Lesson One

Lesson One: Beginning Dragons are basically giant lizards with wings but you need to know that dragons have types. Darkness Light Holy Space Fire Water Grass Electric Wood Mecha Ground Dirt Air and Plain  Dragons also have deadly attacks and can kill if needed. That is why you never go close to a dragon. EVER. I did once and got a huge scratch. Also the types listed Aren't the only types. There are still more to be found. In the next lesson you will learn the most common tools for catching dragons.

Topic by Mplinnc    |  last reply


Bill Gates shared an Instructable!

Congratulations to Instructables author gallactronics for catching the attention of Bill Gates!  He posted the Solar Scare Mosquito Instructable to his facebook page!  Mosquitos are a nuisance, and they also carry deadly diseases that kill over a million people every year.  The device works by creating ripples on the surface of still water to prevent mosquitos from laying eggs, and killing larvae that has already hatched.   Go check it out and leave a comment, or build one yourself!

Topic by Danger is my middle name    |  last reply


Less People

In discussions I've had with my father multiple times, we've come to the conclusion that for humans to stop having a negative impact on the planet, there must be less of a human population. No other way around it. Now, don't get me wrong and think I'm saying everyone should commit suicided or someone should make some deadly disease to wipe out massive chunks of the population, I'm just looking for others opinions to this theory and possibly other.... more humane alternatives. Other ideas as to reducing human population on earth: Sustainable colonies on the Moon, Mars, etc.?

Topic by monkeysee    |  last reply


Watchya think?

The Deadly Human Spore Soon there will arise the four That billions have called folklore And the evil that our age has had in store Will finally cause the uproar And what is to come none will adore The white will knock at the door A knock that none will be able to ignore. And all shall hope for a savoir For none want to be on the plutonian shore. He will judge the corrupt and "pure" And all will hit the floor. The red will gallop and drip blood across the moor, And all man shall engage in war. And the drums of battle will roar, As the sword of combat will bring down more, Than ever imagined outside the four. The black will trot as all will implore To find which will be the cure To all the hungry, diseased, and poor. This will invoke the final score Before the Sage comes to the floor, And all will wish to god they hadn't swore. The sage will smite priest and whore, As the last horseman of the four. And he will fulfill the lore, Of plague and sickness to the core. When all is no more A white dove shall emerge and shall soar And all the peace will restore. Then shall rise the raw power of the boar. No beast, no insect, no life will deplore The ridding of the deadly human spore. Note: i dont believe in god, the four horsemen r just a device i used to invoke the destruction of man for the preservation of nature. And yes i wrote this after watching The day the earth stood still (the new version). And if your confused about the colors there the colors of the horses the four horsemen rode, each color having a meaning (go wikipedia it) Feedback pwease and ty

Topic by poems4u    |  last reply


Where can you acquire NON-Galvanized steel pipe?

Mt friends have found plans to build a forge, and we have all the parts to build it EXCEPT for non-galvanized steel pipe. Because the pipe will be heated up, we cannot use galvanized steel pipe as the zinc used in the galvanization process produces deadly fumes when heated up. We have checked stores such as Home Depot, and Lowes, but neither one has what we need. Does anyone know where (and if), we can get non-galvanized steel pipe? Any help is appreciated, thanks.

Question by Philisawesome    |  last reply


How to create a safe DIY Snuba Apparatus

My Idea so far is to use an air pump (maybe one similar to the one that pumps up inflatables?) is to feed air down a tube to a modified snorkle mask with a 1-way valve going in, and a one-way valve feeding just into plain water.  The air pump would have filters and a catalytic carbon-monoxide filter/converter (w/ small heating element) in the tube leading down to the mask. The idea is that there is always a fresh supply of air running through the mask that there could be no deadly build-up of bad gases within the small area.  Included is a picture of how I envison it (minus the lame Microsoft Paint drawing skills).

Topic by Zalo    |  last reply


What Littlechef should really be worrying about.

Each year, Dihydrogen Monoxide is a known causative component in many thousands of deaths and is a major contributor to millions upon millions of dollars in damage to property and the environment. Some of the known perils of Dihydrogen Monoxide are:Death due to accidental inhalation of DHMO, even in small quantities.Prolonged exposure to solid DHMO causes severe tissue damage.Excessive ingestion produces a number of unpleasant though not typically life-threatening side-effects.DHMO is a major component of acid rain.Gaseous DHMO can cause severe burns.Contributes to soil erosion.Leads to corrosion and oxidation of many metals.Contamination of electrical systems often causes short-circuits.Exposure decreases effectiveness of automobile brakes.Found in biopsies of pre-cancerous tumors and lesions.Given to vicious dogs involved in recent deadly attacks.Often associated with killer cyclones in the U.S. Midwest and elsewhere, and in hurricanes including deadly storms in Florida, New Orleans and other areas of the southeastern U.S.Thermal variations in DHMO are a suspected contributor to the El Nino weather effect.Those are from an American study. I personally have seen quite a horrible crash after liquid DHMO was sprayed across a road, and DHMO was found in the analysis of the first stones removed from #2 son's kidneys.Proper statistics are hard to dig up, but I have found that DHMO was a direct cause of death in 3842 cases in the USA in 2002. 8.5% of them were children under the age of one.Numbers are harder to find in the UK, but around 500 deaths occur every year following contact with DHMO.(A drop of 4% in DHMO deaths in 2001 was attributed to fewer people visiting rural areas thanks to the foot-and-mouth outbreak, indicating a prevalence of DHMO contamination in England's green spaces.)Rather than scaremongering, you should be warning your friends about a very real hazard in their everyday lives.

Topic by Kiteman    |  last reply


The New Pollution

A green revolution is supposed to lead us to a utopia where the birds chirp and the human stain is smaller on the planet, but sometimes the new looks a little too much like the old.Take this story about biofuel plants dumping glycerin into rivers. Sure, it can be broken down by organisms, but it still causes big problems when dumped into ecosystems, just like the black stuff."They're really considered nontoxic, as you would expect," said Bruce P. Hollebone, a researcher with Environment Canada in Ottawa and one of the world's leading experts on the environmental impact of vegetable oil and glycerin spills."You can eat the stuff, after all," Mr. Hollebone said. "But as with most organic materials, oil and glycerin deplete the oxygen content of water very quickly, and that will suffocate fish and other organisms. And for birds, a vegetable oil spill is just as deadly as a crude oil spill." Link to nytimes articlevia treehugger

Topic by fungus amungus    |  last reply


Trash movies

Did anyone else notice the flood of extremely bad movies this year? Zombies, Nazi-Zombies, deadly virus that turns people into zombies... And then there are these "creature films".... Sharknado (1 to3 !!!), Three headed shark attack, Sharktopus VS Whalewolf, Lavalantula, Megashark VS Kolossus .... Of course we also have a lot of adventure films in the lord of the ring style... What is it that all these movies have in common? They all take at least 90 minutes from your life LOL Not sure where to start, the bad acting, the boring dialogs, the special effects - some are below high school level. So what is it that makes companies produce such crap? I admit I can quite enjoy a trash movie every now and then, but the level of trash is now higher than anything. Do you think it is the fun of making it that drives the people, desperation to at least make a movie once or what it is? Can't be to satisfiy the people buying those movies ROFL

Topic by Downunder35m    |  last reply


I just put this up on the Mythbuster's site......

I just posted the following over there, so hopefully a method can be devised to test this safely: (1999) A US Navy safety publication describes injuries incurred while doing don'ts. One page described the fate of a sailor playing with a multimeter in an unauthorized manner. He was curious about the resistance level of the human body. He had a Simpson 260 multimeter, a small unit powered by a 9-volt battery. That may not seem powerful enough to be dangerous… but it can be deadly in the wrong hands. The sailor took a probe in each hand to measure his bodily resistance from thumb to thumb. But the probes had sharp tips, and in his excitement he pressed his thumbs hard enough against the probes to break the skin. Once the salty conducting fluid known as blood was available, the current from the multimeter traveled right across the sailor's heart, disrupting the electrical regulation of his heartbeat. He died before he could record his Ohms.

Topic by Goodhart    |  last reply


Freekiller Crossbow Review

Well, i wanted to do a review, so i did this! Let's go right into the review!!! Piece use- This thing uses so many pieces! And it's really small too! But the high piece count does make it a lot stronger. I give it a 6/10 in this category Strength- This gun is really strong! You can drop it, and it most likely won't break; But there are a few weak points. I give it a 9/10 in this category ROF- this thing has a good rate of fire if you have small bands, but if you are going for power with big bands, you have to load just one bullet in at a time. I give it a 7/10 in this category Power- well, it's a slingshot, that shoots gray connectors, so it's gotta be powerful! I give it a 9/10 in this category Accuracy- This thing is not the most accurate gun ever, but if you are using rapid fire, it doesn't matter about accuracy! I give it an 8/10 in this category  Mag- the mag (which i have never seen before) holds those grey connectors perfectly, but it is a weak point in the gun. I give it an 8/10 Comfort- This handle is comfy! The pull-back thing is also really comfy! I give it a 10/10! Size- This thing is small! You can fit this powerful little gun in any back pack, perfect for hiding it! I give it a 9/10 in this category Pull-backer- What else do i call it? Well, it is really comfy, and it makes pulling back bands super duper easy! I have three strings of two #64's on it and it's just simple to pull back! I give it a 10/10! Looks- This thing looks deadly! The super filled in bow, the awesome looking handles, everything! I give it a 9/10 (it's missing a little something...) Elastics- This thing holds as many elastics as any old ratchet, making it powerful! I give it a 9/10! Bow- the bow is really strong, and it looks super deadly, but for bigger elastics, the small wheel just isn't very good... I give it an 8/10 Sound- this thing sounds sweet when shooting, but if you are trying to be quiet, this isn't the gun, unless you use one of those things that i have on the ratchet of my ASCB, sooo. I give it a 7/10 Big review, eh? well this gun gets.... An 8.5!!!! Great gun from Knexfreek and Killer~Safecracker! Go subscribe to them!!! Images coming soon!

Topic by Seleziona    |  last reply


DISCLAIMER for an old instructable

This instructable is missing vital, or rather deadly information:https://www.instructables.com/id/Drink-Your-Own-Pee---survival-guide/i posted a comment on it, but i doubt anybody will read it. if it is already contained in the instructable, and i haven't seen it, please forgive me.: HeLLO!!!!! I lnow i am VERY late with this post, and i hope someone still reads it.NEVER DRINK URINE! EVER! WhY? well, for one, fresh urine contains no bacteria, unless you suffer from bad kidney disease, in which case, you probably couldn't pee anymore.so why not drink it? because ALL TOXIC WAIST of your body leaks into your urine. those remain inside this primitive distillation device on the soil ,as mineral salts, the water being evaporated and recondesed on the foil, thus recuperated. so, this thing is basically a sun powered water distillation thingie. in emergency situations, you can distilate your urine by other means too, to drink water out of it. just DON'T DRINK URINE, NOT EVEN BOILED. ESPECIALLY NOT BOILED. the water getting evaporated by boiling, the urine increases the concentration of toxines. you can only boil it up to collect the steams, which condense into water. that's what you wanna drink.

Topic by DonQuijote    |  last reply


Which wire goes where (emergency stop button)? Answered

I'm trying to wire up an emergency stop button. Australian power outlets have 3 prongs, active, neutral and earth. My switch has 2 connections, one Normally Open one Normally Closed.  I think I need to have the active line connected to NC (so connected when the switch is in the ON position) and the neutral connected to NO, and the earth remaining connected regardless. This should mean that when it's on the Active line is connected to ground and this the power is on past the switch. When the switch is OFF the neutral is connected to earth and it is safely off (any remaining power in devices connected to it can drain to earth). Am I right in thinking this? or is there something I've overlooked? I am also aware that mains power (240V AC in Australia) is deadly, and not a good idea to play with unless you are a qualified expert. I do intend to have this checked before use, however I would like to have a proper understanding before I go any further. The emergency stop button I have is rated for sufficient volts and amps to use on Australian mains power, and is suitable for the intended use (before a corded drill or circular saw).

Question by RandomIdeaMan    |  last reply


Test subjects with working but useless computers needed *please*

 Hi I am looking for some test subjects who are willing to sacrifice their old or junk computer to help me test something very important, please to not feel urged but if you wish to please reply, I will send you a pm with a file if you wish to help. It is a virus but not as you think, it was made fully from a batch file, please hep, I will soon be  pro and may give patches out. THANK YOU if you help. More info: self replicating and running virus which is set to run the first time your computer turns on after you run it, afterwards it needs to take some time to re read the files and re running.1 gb of spce will be filled every 6 minutes so it is kinda deadly but it slows down afterwards, then it self replicates and runs a lot and then you turn you pc off and back on it self replicates again and makes more folders and files until your hard drive comes to a halt, on the slowest computers it can fill a 360 gb drive in 3-5 hours depending on cpu usage. Because it uses to much processing power it is extremely detectable so please help me I will also post a file to stop all of this. Name: qwerty virus

Topic by knex_mepalm    |  last reply


Knex "K*bot" competitions (kbotworld.com)

Http://www.kbotworld.com/ I was bored and decided to google "Knex". What I found was very interesting. Apparently there are competitions for Knex robots that do battle with each other. As I read this I thought about how us Knex gunners at Instructables could easily dominate these competitions; because we are the kings of Knex warfare. We could have a collaboration group based around K*bots, where we will post ideas and eventually have designs for the ultimate robot. Then when the competitions come around we could find somebody who lives closest to the competition to build the robot and enter on behalf of our collaboration.But there's a catch: There are rules, an one rule states that projectile weapons are banned. But I believe there are ways around this, as the exact ruling on this goes:"Projectile weapon systems which can launch a K'NEX part clear off the K*bot are banned due to safety reasons. Any other weapons systems which the organizers deem too dangerous will also not be permitted." This could easily be avoided by fixing the projectiles to the robot. For example: My cannon could use an extremely long bullet that has rods in the back of it, preventing it from ever leaving the robot while still delivering a deadly impact. But don't forget that weapons NOT based on guns will also be essential.So what do the rest of you think?

Topic by oodalumps    |  last reply


I shot myself with a bb gun......HELP!

I accidently shot myslef in the hand with a bb gun. I now have a .177cal copper bb lodged a few centimeters in my palm, just under my middle finger. Its restricting any movement of that finger and hurts alot. Besides seeing a doctor, does anyone have any suggestions?*24 hour update*Hey dudes, thanks for all of your helpful suggestions. I would go to the ER but I'm deadly afraid of doctors, nurses, dentists, and the like. So, at about 4:45pm (pacific time) today, I attempted to extract the bb myself. first off, I took and hanful of cottonballs and stuffed them in my mouth to muffle the screaming. Then, I went at it with an ear-wax remover I picked up from the local chinese pharmacy................................................OUCH!......................................Unsuccesful.*48 hour update*At about 8:00am this morning, I succesfully extracted the bb with a small wire fashioned into a loop <=========. yeah, sort of like that. Needless to say, it hurt a bunch. It is now 11:30am same day, and my hand is already feeling better (duh). And (though still painful) I can move all of my fingers. The way I see it, I'll be totally healed in a few days. Hopefully.*One Week Update*Its been about one week from the day I shot my hand and I'm happy to report that I am now without pain and Infection-Free. Thanks everybody for all the helpful suggestions. Even though in the end I used my own way of dealing with the problem.

Topic by sunwukong15    |  last reply


Gearbox Sharpener for knex

NOTE THIS IS A MODIFIED VERSION OF THE ONE I MADE LOOKING AT THE VIDEO ON YOUTUBE! IT WAS INTENDED AS A GEAR BOX BUT I ALSO TURNED IT INTO A SHARPENER AND A CHAIN SAW!!! It is hand cranked so... yeahThis is a knex sharpener tool that uses gear ratios to spin the rod at high speeds faster then a large yellow gear to small blue or grey gear ratio which is a 1/5 rotation ratio, for this gearbox though you achieve a magnificent 1/32 rotation ratio. One spin of the cog or yellow gear or starting gear whatever = end rotationWhen spinning at high speeds use a knife or sand paper to refine the sharpness of your rod to a dangerous needle if needed, or you just want to clean up a bad cut job from a pencil sharpener or knife cutter? This gearbox will smoothen out our refine your knex rod... NOTE THIS CAN SHARPEN THE ROD SO SHARP THAT IT IS DEADLY... NEVER EVER FIRE THIS ROD EVER TRUST ME NEVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER EVER SHOOT THE SHARPENED ROD AT YOURSELF OR SOMEONE OR ON AN UNRELIABLE KNEX GUN OR A STUPID KNEX GUN ETC THIS THING CAN MAKE YOUR RODS DEADLY TRUST ME IT HAPPENED TO ME BEFORE!!Anyway enjoy!

Topic by mrbox    |  last reply


Flyback driver from monitor circuitry?

So i've been into hv stuff for years,currently engineering undergraduate, just never did anything practical. So recently we got a new microwave, therefore old microwave= junkyard ^_^. Anyway, i acquired a MOT i also took the capacitor and diode, and the magnetron (never know when you could crave instant cooked meat ^_^ kidding). Then a few days later (last week) someone left a computer monitor outside on the sidewalk, which equals source of flyback ^_^. clearly someone up there wants me to play around with hv (or is it someone down there..?) and so thats how i  came into possession of a flyback. i could have had one a while back, we had a big tv, which had one of the big old flybacks which are way better than modern ones, but this is before i knew about flybacks and so i dismissed it as some large junk...to this day im still slapping my forehead over the fact that i let that go... Naturally, i have a few questions: 1. I hooked up the mot to mains (deadly i know) but the arcs were insane. i tried ballasting it with a cfl bulb, 15 watts, however, when connected the mot did nothing. touching the hv to ground only made the cfl brighter. why? 2. i pulled the flyback with the circuit, i actually took out the whole board from the computer monitor. how can i use this as a driver? i know i could pull components out and make one but seems to me whats already there would be good enough. 3. Found out i can use a cfl to drive the flyback, can i also use this for the mot? one other thing, i was thinking of using the mains transformer (torriodal transformer) from the monitor to power the mot and/or flyback, using it as a step-up or step-down transformer. Is this possible with the flyback? Thanks, and sorry for the loong question im just excited ^_^

Question by fire_fist_ace    |  last reply


Wood Steaming and The Tubench: DIY Videos at their best.

It all started when I was on the internet, as usual, and began to search for ways to bend wood cheaply. I had heard of people doing it with just a copper pipe and a blowtorch, but I wanted some affirmation from the interweb before I inadvertently set by garage ablaze. Now, I don't know about you, but when I want to know how to get something done, I head to Youtube first. I'm not sure why, but I find how-to videos to be a much better starting point for a project than reading long, picture-less descriptions on someone's website, although it's probably just because I end up wasting extra time.A search for wood steaming and bending yielded this video of a man in Belgium who turned his backyard into a steam-run hell, or playground, depending on your perception of safety versus fun. I was blown away (perhaps literally) by this video. With the combination of wild 8-bit techno beats, precariously assembled and potentially deadly equipment, and a project of such a scale that even a music-video director would be envious, you have yourself one of the most incredible DIY videos I've ever seen. I watched it probably five times before I stumbled upon another video by the same guys. Despite high expectations, I could have never been prepared for The Tubench. Just when you thought these guys couldn't get any more insane, they give you this. They gave you the Tubench. If you thought building a bench was boring or at all a passive activity, you were wrong. Or, at least you were before you realized building a bench out of tubes requires speeding dangerously through parking lots, building it a surfboard, attaching it to your car like an antenna, and SAVAGLEY BEATING IT WITH EVERY SINGLE IMPROVISED BENCH-TORTURE DEVICE YOU HAVE... to ensure structural integrity, of course. Apparently, these things are actually available for order by emailing DIETRICHBONNE@hotmail.com. Well, I still have no idea who these guys are, or what possesses them to make such epic videos, but if they haven't been invited to Instructables already, someone needs to draft them in! Keep up the good work, my Belgian friends.Happy Hacking~Skyfinity

Topic by Skyfinity    |  last reply


Ch, 4 In Which Mikeasaurus comes to Instructables and I Build Portal Stuff

Hey Instructabrarians! SHIFT! here to give you all of the semi-recent goings on at Instructables Laboratories!  Last week, our facility opened it's doors to our newest team member Mikeasaurus!  He's been a long time user and fan of the site (you might remember him from such classic 'ibles like Wristwatch Turntables, the very Blade Runner-esque Umbrella Light, and most recently the popular Magnetic Putty ) and we are pleased to have him join us.  So far, he's done a terrific job helping me out with shipping out packages as well as being a fantastic go to guy for any Photoshop editing needs!  As for me, awhile ago for one of our in-house contests, I was looking for unique ways to liven up our lab at Instructables HQ. My inspiration finally from a picture of the iconic cake, from the first Portal game, that hangs – on our bathroom door. I thought it would be really fun to create some kind of companion piece alongside it, and decided to make a couple of themed papercraft models based on the game.  For my first craft I decided to make something that would help protect Instructables’ top secret information from unwanted intruders and rogue test subjects. “Hey”, I thought, “why not the militaristic Turret defenses?” This deadly craft was designed by deviantart’s billybob884 using Pepakura software. He has done some amazing work with papercrafts and Portal and was responsible for designing my amazing GLaDOS papercraft I enlarged 24 X for our recent Game.Life Contest. (“Oh, So NOW you’re going to mention Me? [[=REDACTED=]], you Monster.”) Next, I constructed a tiny 1- inch craft, the fan favorite friendly Companion Cube, desktop edition for our editor-in-chief zazenergy. This craft was designed by user Moony for the /po/ board on 4chan.com Just the thing to help zazenergy with some normal day to day testing!  Finally I created the FrankenTurret that was featured in Portal 2 which (spoiler alert) is a horrific combination of the Aperture Science Weighted Storage Cube. This cool miniature craft, however, came from digitprop.com and was given to Mikeasaurus, who is another fellow Portal fan of our lab. I also have future plans for a fully functioning one and plan to submit it to our Simplebots curator and designer Randofo sometime soon. Anyway, I love Portal and Papercrafts so this seemed like a perfect combination to me. I have a few more Full-Scale versions for some of our upcoming contests, so that should be really interesting. -SHIFT! EDIT: I had pictures of Mike in our office, but can't seem to find them anywhere, sadly.  

Topic by SHIFT!    |  last reply


which could cause an electric shock if touched if the charger is plugged into a socket

Frank had been cooped up in a hospital room since May, when he suffered a stroke. Doctors thought at first that it was just flu-like symptoms, but they soon HP Compaq nx7400 Battery discovered that the teen had dilated cardiomyopathy meaning his heart was more than twice the normal size, making it extremely difficult for it to pump blood efficiently. He was immediately flown from McAllen, Texas, to Texas Children’s Hospital in Houston, where he would soon make medical history. What doctors initially called cerebral palsy instead was a HP Pavilion TX1000 Battery rare metabolic disorder assaulting his brain and muscles, yet one that's treatable if caught in time. Urged by John's family, Duke University researchers are working on a way to test newborns for this disease, called GAMT deficiency. It's part of a growing movement to add some HP Pavilion TX2000 Battery of the rarest of rare illnesses — with such names as bubble-boy disease, Pompe disease, Krabbe disease — to the battery of screenings given to U.S. babies hours after birth. Nokia said the chargers' plastic covers might work loose and expose wiring, which could cause an electric shock if touched if the charger is plugged into a socket. It said it had received no reports HP Pavilion ZD7000 Battery of injuries or accidents related to the chargers. Prosecutors charged a physician Wednesday with first-degree murder in the fatal stabbing of his 9-year-old son in their upscale suburban Oklahoma City home. Dr. Stephen P. Wolf also was charged with assault and Sony VGP-BPS2 Battery with a deadly weapon after he allegedly also stabbed his wife during the Nov. 16 attack at their home in Nichols Hills. The 35-year-old Tolentino had good reason to be. In 2006, she paid $2,000 to get liquid Sony VGP-BPL5A Battery silicone injections, too."I didn't do it as many times as my sister ... But I was afraid," said the Dominican woman who lives in the Bronx. "I was afraid that something was going to happen to me." Her sister, Fiordaliza Pichardo, died in March. According to an autopsy, about 1,400 milligrams of silicone were in her lungs. Fresh injection sites dotted her thighs and buttocks. The New York City medical Sony VGP-BPL5 Battery examiner's office said the cause of death was silicone pulmonary embolism. Norman police records indicate the 26-year-old Dvoracek was arrested around 1 a.m. Saturday at Seven47, a restaurant near Sony VGP-BPL4A Battery the University of Oklahoma. A group of businessmen on Monday launched a new coalition to urge the Sony VGP-BPL4 Battery federal government to make a major investment in electric transportation, pointing to electric cars as the best way to confront the nation's dependence on imported oil.

Topic by hplaptopbattery    |  last reply


Core Wars: The battle of the programmers.

Okay, brace yourself for a lengthy background story: In the 1960's and 70's, computers were much too expensive for a normal person to have one all to themselves. Before the invention of the Personal Computer (PC), computer systems were mainly employed in large universities, able to be used by students. However, there came a danger with all this: Back then, there was no such thing as protected memory, meaning that someone with minor hacking skills and some knowledge of assembly could easily wreak havoc on other people's data and programs. One such urban legend is that of a major business firm's main computer system, which a mischievous employee had installed his own assembly program called creeper, who's only purpose was to create copies of itself whenever it was run. This soon became a problem, as the creeper virus began eating up precious space in the memory and began corrupting other people's data and programs. After a while, another more brightly-hatted programmer created a program called reaper, which would make numerous copies of itself and destroy any creeper virii it could find and then self-destruct. Soon enough, things were back to normal. After hearing this story, a programmer named A.K. Dewdney got the idea for a game which he called "Core Wars". In this game, people would write computer programs called "warriors" in an assembly language called Redcode. Redcode had instructions not out of the ordinary of any assembly language. These programs were then run simultaneously in a simulated computer called MARS. The aim of the game was to make the opposing program crash by forcing it to execute an illegal command in the computer's shared memory. The surviving program was declared the winner. The absolute simplest warrior was called imp, and was written by Dewdney: MOV 0, 1 The MOV command moves copies a command from one place to another, in a position relative to the MOV command. Because of this, the imp would fill up the entire memory with MOV commands in a relatively short amount of time. Because the memory loops around (So, if the size of the memory is 8000 commands, then command 8001 would be executed as command 0) then it meant imp would always hit it's target eventually if it wasn't hit first. Another program which was written by Dewdney is called Dwarf: bomb      DAT 0,0 Dwarf     ADD #4,-1                 MOV bomb,@bomb                JMP Dwarf End Dwarf This is the first example of a "bomber" program. This program would drop DAT 0,0 (An illegal command) at every fourth slot in the memory in the hopes that the other program would accidentally execute it (cookie if you can figure out how it works). There are far other types of examples, like scanners, which try to scan the commands around it to see if they are illegal. Some programs can even repair themselves mid-battle. So, does anyone else still partake in this ancient game? I recently just got into it, writing my first warrior program a few days ago. Have no idea if it works, but it sounds pretty cool. It's based off of Dewdneys Dwarf but with a few modifications (I named it MindSplitter): bomb      SPL 1                 JMP -1                 DAT 0,0 Split        ADD #5,-1                 MOV bomb,@bomb                JMP Split End Split First off, this plants bombs at every fifth command instead of fourth, which I hope will help it spread out. Second, the bomb it uses is my personal invention that I call the Splitter bomb. In Redcode, the SPL command will jump execution to the specified command, while at the same time continue executing the commands after it. The idea is that the SPL will split to the jump command while the normal execution goes to the jump command, and both of them jump back to the SPL, therefore filling up all of the enemy programs processes. If the enemy program somehow manages to escape the loop, there is a deadly DAT after it. I haven't tried this out yet and I'm not sure how it would do in battle. If someone with a MARS emulator and a warrior of their own would like to put it to the test, I'd would absolutely love to hear how it turns out :).

Topic by dungeon runner    |  last reply


Can Non-Hybrid Cars Get 100+ MPG Today?

  We're not talking about hybrids here; our topic is cars powered by the basic IC-engine that relies on gasoline and not electric motors. Today's gasoline engines are not designed to combust/burn gasoline efficiently. Even with the advent of using high pressure fuel injection techniques that are computer controlled, we still fall short of the mark. Partly because liquid gasoline can't burn, only gasoline vapors burn, and there lies our problem. The same goes for injecting the high pressure droplets of fine-mist liquid gasoline that enters the engine cylinder using our current nozzle ejector technology, it doesn't all burn at the same time! Engine designers assume that these droplets are instantly vaporized by the engine's hot cylinder walls, and then instantly explode/combust when ignited by the sparkplug. Not true, up to 2/3 of the fuel isn't vaporized and doesn't combust until later on in the cycle. The 1/3 that gets almost-instantly vaporized and burns will do so within the several thousandths of a second (Fig-1) it has before the piston moves down its 1/2-stroke (out of today's 4-stroke cycle) completing the engine power-portion of its cycle. This releases power and tremendous heat which indeed vaporizes the remaining ~2/3 of our fuel from its liquid droplet form, but too late. It essentially does so when the power stroke is almost over or the piston is just about ready to move into its up-stroke (2nd stroke of our four stroke cycle) phase. So, because of poor vapo-timing we have 2/3 of our fuel virtually wasted by exploding at near the bottom of the power stroke. This incorrect explosive timing, which happens to most of our fuel, imparts very little energy into the crankshaft because its effective "moment" (a product of explosive force and radial-component distance from crankshaft center) is insignificant by then. Various attempts at adjusting the combustion timing spark hasn't made a significant difference. Even though ~2/3 of the fuel is now exploding and providing a huge force, its small "influence" arm distance is rapidly diminishing to zero, and any huge downward force times near zero arm-length is still zero. Some clarification here, technically thermal-efficiency is not improved, pretty much all of the gasoline gets combusted today. That means the energy of the fuel is almost totally released, but not effectively used. The problem is the timing it takes to convert fuel-injected gasoline droplets into vapor to combust at the correct engine rotational time and extract that expended energy. If you did the math for any size engine rotating at say 3200 RPM, you would find that a 4-stroke engine can only extract that energy from combustion during one of the four strokes. And the time it takes to make that stroke happen is only about 9.4 thousandths of a second or 9.4 milisecs (msecs). Now picture the piston just below TDC, all its valves closed, under pressure and containing all the fuel and air it needs to combust. At this point our deadly cocktail has about half of the 9.4 or about 5 msecs to complete combust after the timed sparkplug ignites it. The half factor exists because the max portion of our power stroke (moment arm) occurs at the mid-stroke of the piston sliding down and turning the crankshaft. If all of our fuel isn't combusted by then, the moment-arm or distance from the piston-center to the crankshaft quickly reduces to zero. Again, only vapors combust within a healthy 2 msecs (Fig-1), while fuel droplets take a relatively long time (>5 msecs) to vaporize before it can combust. Unfortunately nature is stubborn and vaporizes ~2/3 of our injected fuel droplets only during roughly the second half of the power stroke. So this huge amount of energy gets wasted because even though the forces of combustion are huge, its moment arm is rapidly approaching zero. Infinity times zero is still zero! Engine designers/engineers have been plagued by this phenomenon ever since the creation of the 4-stroke gasoline or Otto cycle engine. We need to improve this intermittent combustion/explosion process by combusting all of our injected fuel at the correct timing sequence. This is accomplished by injecting only vaporous fuel which will produce ~3X the power we now get. Another way to state this is, for the same power that we now get from a gasoline engine, if we burned the fuel correctly, we would only need 1/3 the fuel consumption to get 3X the current MPG.

Topic by RT-101    |  last reply


convert any CRT TV or monitor into a vector (XY) monitor?

NOTE: I since found a couple links that might shed some light on the question... From HackIt: New uses for old CRT monitors http://hackaday.com/2008/02/25/hackit-new-uses-for-old-crt-monitors/ It would be very hard to do, but it is possible a CRT could be converted to a vector monitor. Perfect for playing Asteroids, perhaps under MAME. You would have to replace all the control circuits, probably with an FPGA and three ADCs (x/y/intensity). Posted at 8:58 am on Feb 25th, 2008 by MoJo Television and PC monitor experiments http://www.educypedia.be/electronics/televisionexperiments.htm old cga/vga monitor to oscilloscope ? http://www.edaboard.com/ftopic57853.html The inquiry: Maybe I am over-simplifying but I was reading one of those examples of hacking into a CRT's horizontal & vertical yoke controls to sync to music:     http://geektechnique.org/projectlab/707/how-to-make-mac-se30-audio-visualizers and had the idea that it should be possible to create a DIY XY monitor (vector display like on an oscilloscope, Vectrex, Asteroids, etc.) for an Arduino or other uC, MAME or Vectrex emulator, from any TV or CRT, once you have hacked into the electron gun's yokes. My understanding being: Raster display: the horizontal yoke (an electromagnet) sweeps the electron gun from left to right turning on the beam wherever there's a "pixel" at that line (which lights up the phosphor at that point making it visible), then it starts over at the next line (vertical yoke moves down) and draws the next line, and so on, Vector display: instead of rendering a moving image frame-by-frame using top to bottom/left to right scanning, shapes are drawn directly to the screen by positioning the horizontal & vertical yokes at the starting point, the beam turns on, and the yokes repoint to the end point, thus "drawing" the line inbetween the 2 points (I would assume this is for straight lines, not sure if circles or arcs are possible?) then the beam turns off, and the yokes get re-positioned to the next line's starting point. I'm not sure what turns the beam on & off or what kind of timing might be involved, obviously that needs to be controlled somehow. Or for color, where instead of a single white (or green, amber, etc) phosphor exists per pixel, there are multiple (red, green, blue) per pixel, and the beam hits each one at varying strengths (or for a varying length of time?) to 'mix" the primaries to the desired color? I'm not sure how that gets handled in a color vector monitor, but I would assume it's something similar to raster? So if we can hack into a CRT's X/Y yokes and move them around with an audio signal, can we control the yokes more deliberately from a microcontroller to plot specific shapes or text, hence a vector display? For those audio/TV hacks, what is the audio signal doing to the yokes that causes them to move? Whatever it is - voltage, resistance, etc - this is what our device would have to control. Possible proof of concept version: make a device to control the yokes' position etch-a-sketch style with a couple of potentiometers, and turn on the beam with a switch or button. If you see a dot of light moving across the screen then it works. I am thinking the controller might need to be "calibrated" for the individual CRT? (Maybe build some kind of calibration mode into the device.) You might dedicate a microcontroller to driving the display - it could receive text or vector shape coordinates via serial, store the shapes to draw in its own memory, and persist or refresh the image independently, freeing up processing power for whatever device it's displaying for. Another idea would be maybe add some kind of way to read light pen's coordinates, thus making the CRT an input device that can be read from the microcontroller or PC (the Vectrex had a light pen right?)  [This would be a cool mod for the Arduino composite TVout as well.] So is this idea possible without a ridiculous amount of work & parts?  I may be dead wrong about how this stuff works (I'm sure that if this was possible, someone would have done it by now?) but figured it can't hurt** to put the idea out there. I have visions of 4-player vector Arduino pong, Asteroids, Tempest, PDP-1 Spacewar!, vector NES Duck Hunt, a vector etch-a-sketch or lightpen drawing or animation program, or vector Atari Video Music. Possibly an open source color vector games system. Or just a vector display system for any Arduino or microcontroller project, made from any TV. **WARNING: maybe it CAN hurt... Evidently hacking into any CRT can be deadly, you have to discharge the CRT and capacitors properly or you can get killed. So please be careful. This definitely is NOT for kids to try at home.

Question by apple-o    |  last reply


Homes Protected from Raging Forest Fires

Every year we hear about countless homes being destroyed by forest fires. Unfortunately, the public isn’t aware that our current level of technology can readily address this problem. I have been examining a concept that has intrigued me over the past decade and which I call a “fire shield”. This shield functions by completely enveloping a private home and protecting it against encroaching forest fires. We’re talking about protection against a blazing fire storm generating high speed winds and flames in excess of 100 MPH. The shield would be a flexible structure that easily inflates like a balloon (needing perhaps three people for a day to erect) and forms a protective hemispherical, shell-like dome over the home (Fig-1). The structure would be impervious to penetration by high speed flames and their intense radiant heat, thereby keeping the enveloped home safe, cooled and protected. Each home would require a pre-fitted, customized buildup of a number of pre-built modular, balloon-like segments. They are manufactured and then assembled over the house only once, to get a customized tailored fit, then taken down and stored, and thereafter are ready to be deployed within a day’s advance notice of an encroaching forest fire. The Fire-Shield would be a modular, portable, inflated dome like those used for indoor tennis, which is prepared and custom-fitted to be later erected within a day. While typical inflated domes have their entire inner volume pressurized, our Fire-Shield will only require pressurizing a small volume contained between its double-walled structure that forms the dome as shown in Fig-1. The surface of its outer material uses NASA's radiatively reflective, aluminized Mylar to ward off the intense radiant heat of a fire storm. In addition this surface gets protected against the 100 – 150 MPH fire-winds, which are ready to impinge upon it, by injecting a high speed film of air (just like gas-turbine blades) produced by portable blowers. The actual heat-shield contains multiple, redundant pockets of cells directing the flow of air to both film-cool its surface and protect the shield against direct flame contact. Each major modular segment would contain its own portable, gasoline powered wind generator to supply the airflow. Depending upon home-size, several of these modules would be easily connected using Velcro plus redundant snaps and safety-stays. The shield gets attached over chimney tops and to pre-installed, grounded cement-posts, plus strategic hooks about the outside of the house. Special, inflated pillows are also strategically placed (between the shield and the house exterior) to facilitate the formation of a hemispherical shield that envelopes and protects our home against a high speed fire-storm. The Fire-Shield Design Concept The concept for a fire shield went through a gestation period of several decades as my career in thermo/fluids evolved. It started with the design of jet engine turbine cooling to thermal control of satellites, and finally to designing radiant heat barriers for cryogenics. These activities enabled receiving a score of patents as well. These activities inspired the concept for a rapidly deployable Fire-Shield to protect homes against a raging forest fire. The idea requires integrating several technologies ranging from inflatable commercial air domes to jet engine cooling to radiatively cooled spacecraft. Also included are flexible material coatings developed by NASA that radiatively reflects high temperature heat, making the deployable Fire-Shield a viable concept. Two key design principles are employed to protect both the heat shield and the home it envelopes. The first is shown in Fig-2 and uses a high speed film of air (faster than the anticipated fire-storm flame speeds of 100 – 150 MPH) that is locally directed to blow over the shield’s surface, cooling it and protecting it just like the metal turbine blades of jet-engines. The temperature of speeding flames impinging upon a jet engine’s metallic turbine blades is hot enough to easily melt them, yet the blades are protected by using this film cooling technology. The same technology will protect the heat-shield from meltdown when high speed flames of 100+ MPH attempt to impinge upon its surface. The second principle protects the shield against the intense radiant heat coming from a blazing forest fire where temperatures can exceed 2000 F. While this radiant heat does not physically touch the shield, as would a fire-storm’s flames, its presence is “felt” and is as deadly as the hot flames that would normally scrub over the shield without our film-cooling. We use a radiatively reflective, thermal coating barrier that repels this radiant heatload and protects the shield from melting. Such coatings were originally developed by NASA to protect satellites and spacecraft. The coating gets applied to the shield’s outer domed surface and will reflect better than 97% of all intensive radiant heatloads that are incident upon the dome’s surface. (Patent Pending; Original Concept Documented in 2006)  

Topic by RT-101  


Knex Firepower Standard

Hello everyone I (like alot of my freinds) get tired of... oh why dont you just search "Knex gun" and look at the mini descriptions and read them all, or maybe most and think what alot have us geting tired of, Go ahead! see you in maybe a min or 2? just click back or whatever to return here! and continue from where you last read.Welcome back! Do you see what what I'm talking about? well there are two things and if you did not notice these things feel free to look again!And what is Sypran talking about? (drumroll) the Quotes "It's very powerful" "easy yet powerful knex gun" "gun shoots about 60-70 feet" "this is a very small gun but will fire about 50 feet" "A deadly knex gun" and that is just the first page! i could go on for hours (ok maybe a long time) of coppy and pasteing these quotes!honestly i see to much "easy yet powerfuls" i cant realy tell what is powerful! so what do we do? well we take out time building maybe some and it turns to be not that great or it is great!, or we rush to see if KILLERK, Mepain, Extreme builder, Trainman2000 (i will always call him that >=D)You (aka mykhailo),Perfect duck,loosewire,Dsman19(i cant rember numbers) Oodalumps, am i forgeting anyone? (tell me if i am) has any new ideas/guns.so what do we need to do? WE NEED A FIREPOWER STANDARD something simple like 1-20 and how to mesure it, in earth science they clasify rocks hardnes by what they scratch (nail 2.5 glass 5.5 and so on) we need it something like paper peice, but not that for some guns have alot of power but cant peice due to low velocity and or dull non sharpened bullets.also if you know anything about real guns the bigger the bullet, the more powerful =D but the smaller the bullet the higher peirce rateing (a 0mm would be the best peirce but little damage) so in other words the biger the bullet (45 cal example) the more stoping power it will have but less muzzle velocity (pierceing ability) wile the smaller (7mm) the knocking over/stoping power is anything to be desired, but it will have high muzzle velocity so peirce through more materials. yet with (if it was at all posible) a 0mm (or basicly nothingness) in theory could peirce through ANYTHING but would not stop the person or thing in any way so the same pricable stands for knex notice the shotguns that shoot conectors (or killerks magnum with his amo) create a biger bang sound, they do more damage, but need more force to get all that mass through a paper wile the ones that shoot sharpened (like gorkem's) or greens can peirce paper with ease. so not only will we need a firepower test but a peirce test. peirce is easy enough its velocity and ammo size and a variable if it is sharpend and we have an instructable on how to determin bullet speed. power is bullet size+ extentions (killerk's magnum ammo like) also a little velocitybut the system needs a ruberband standard to keep in mind no putting on more then the systems amount of ruber bands or size of ruber bands (i know people will do this anyway)so what am i basicly saying in this topic? easy please people we need records of bullets speeds for sertain bullets with your guns it is easy since most of you seem to have digital cameras and there is an instructable about it. also we need to know a standard RB cause i dont know whats standard in the rest of the world besides USA and even then i dont know if its standard in the other states (they say americans like everything bigger and sadly sometimes it's true)i have tested some guns out and lets say that stong yet easys from the first page so far are low... so maybe we need a test for difrent kinds of guns! i have seen rifles that fire like a medium pistol (for they are exept they have a longer barrel, bipod, stock, and scope) should these even be given a 6 out of 10 in every catagory? or should it be 2 outa 10 for rifles. if lets say we got a standard of ruberbands to be 2 (not including trigger ruberbands) that where (makeing this up) a circumfrance of 3 inches, end of barrel being 2 feet away from camerathe adverage gun (all makeing up still) 25 feet with white shooting 1 foot per sec, does not dent an empty can. bullet speed of 5 feet per second with a max range of 40 feet (acurate ranges ppl use mesuring tape) with a white bullet that dents and peirce through an empty can we can conclude that the gun has high peirce rate but beter then normal power rateing. so a 7/10 for peirce if best was a max of 60 ft bullet speed of 10 ft per sec and white rods then it could have scored higher.one day when i search "knex gun" i want to see "my first Sniper!, it scored a 7/10 firepower and 8/10 pierce with 100ft range" cause then i can say that is a good gun I'm going to build!

Topic by Sypran    |  last reply


Dragon Samurai Chapter 3

Here's the third Chapter. The plot is thickening! :-) PLease tell me if there's anything that could be improved! Chapter 3 The dojo It took another few hours before we actually reached the dojo. The girl with the golden hair had come in and out of consciousness during the day. Clouds were starting to surround us and we weren’t far away from the entrance. I was about to ask my dad a question when a kunai shot past my ear and stuck into the ground. I turned my head around to meet a rain of kunai and shuriken. “Father,” I cried. He barely turned his head an inch before catching sight of the ninja weapons. We broke into a gallop and barely escaped the deadly blades of the kunai and shuriken. One shuriken was aimed straight at the girl. I took my bokken and deflected the ninja star. I had practised sword defence several times with my father. Not a second past when a second wave of weapons was launched form the trees. My father drew his katana and deflected several shurikens and I did my best with my bokken. A kunai embedded itself in my bokken and a shuriken grazed my cheek. I winced and held my cheek feeling the warm blood seep out of my veins. We were now metres away from the dojo’s entrance. No ninja would dare enter it. My dad called to the guards to open the gate and they obeyed. The gate creaked open and we rushed in. The gate closed and several kunai and shuriken clanged against the metal gate. Inside the dojo we were safe from any attack. I breathed heavily as I got off the horse. I got the girl down from the horse while clutching my cheek which was still bleeding. My father ordered me to take the girl to the healers. I walked through the dojo admiring the amazing buildings and statues. There was a beautiful fountain in the garden full of birds bathing themselves. I continued walking until I was walking past the training halls. Curious heads popped out of the halls and gasped at the girl with golden hair. The pupils soon returned to their training when the sensei hit one student’s shins with his walking stick. The young boy winced and held his legs. I had a feeling that the sensei’s hit was harder than it looked. We soon arrived at the healing quarters. I laid the girl in one of the beds and a lady carrying medicine rushed into the healing quarters. She quickly opened a door and placed the medicine on one of the benches inside the room. She came out of the room and noticed that I was standing next to the bed here I had laid the girl. “Oh, I am truly sorry for my rushing,” she said. “Now what do we have here.” “My father and I found her unconscious in a forest near here,” I started. “She’s been coming in and out of consciousness during our journey.” She observed the girl and felt the pulse of her blood. “Her blood circulation is running normally. She doesn’t seem to have a fever.” She performed several other medical procedures before she looked at me and said, “She just needs to rest. You on the other hand need to clean your cheek to prevent infection. Run along now.” I bowed and went to the bathrooms to clean my cheek. Inside I found someone I really didn’t expect to see. “Ryu!” cried Hiroshi. “What are you doing here, Hiroshi?” I asked amazed by his presence. “I’m here to train just like you. What happened to your cheek?” “We were attacked on our way here. A shuriken grazed my cheek.” “You also got a kunai in your bokken.” I looked down at my wooden sword. I took out the kunai which had put a hole straight through the bokken. I sighed. I’ll need a new one. I washed my face and told Hiroshi about our journey here. I explained how we found the girl and were attacked by ninjas. Every now and then he would gasp or gulp but I didn’t mind. Once you’ve lived with Hiroshi for over five years you get used to what he does. He always interrupted sentences with a mumble or yawn or any other type of noise including noise that didn’t come out of his mouth. A bell rang in the distance. It was time for dinner. I could smell the cooked rice and the chicken and my mouth started watering. We walked to the dining hall and sat down about halfway down the left side of the table. The teachers sat up on a raised table and my father was sitting on the far right. He was staring straight to the forest. His expression was hard to decipher but he seemed worried and I had a feeling that it had something to do with the ninjas that attacked us. The man in the centre of the raised table stood up and the hall went completely quiet. “Today we welcome several new students to our dojo,” he shouted in a superior tone. “For those of you who are new, I am Sensei Masako. Some of you may already have heard that the Emperor has been kidnapped by the ninjas. The dojo will be doing its best to help in any way possible. Be aware that this will NOT interrupt your training. Without further ado, let us begin to eat our meal.” Within ten seconds everyone was eating their food and talking to friends. My father ate and conversed with some of the sensei’s at the table but every now and then he would stare out into the forest. Something sinister is going on and I had a feeling that the kidnapped emperor was the least of our problems.

Topic by Tornado96  


Beware of the new Email scam!

Recently I noticed that one my Emails accounts got some unwanted attention.Both in the standard folder as well as in the provided spam folder I started to collect Emails.And I don't always mean from senders I knew or webistes I am registered with.My usual approach is to just delete what comes from unkown senders or has a suspicious feeling to it.So no winner got it all crap, no offers, no invitations...A few however seemd to originate from some well known "things on the web" - and some of them I am registered with and get ads, offers and such.Sadly that resulted in some Emails being looked at and then discarded anyways.I kept deleting those unwanted mails without opening them for a few days.They they magically changed ;)Websites I used and especially those that require login details appeared as senders.Nothing with any vital info in the preview but also no real activity from my end on those websites.Then I made some impulsive buys on Ebay :(On top of the usual Emails I also got some "reminders" and "seller offers" added.Never happened before and certainly not activated in my Ebay account as feature.And unlike real Emails from Ebay there was my account name missing.Instead a conviently placed and highlighted shortcut button to "You account login" was provided.Ok, fake, forwared to Ebays spam team and quickly confirmed as spam.Moved and only hours later I got more Emails with similar tempting offers as buttons to confirm something that requires me to login.And now from websites or services I actually logged in to this day.The wise donkey said: You have something on your computer that shouldn't be there!Reboot from a CD to have the hard drives checked for malware - negative captain :(Ok then must be something within Windows, time to use a system restor point for a few weeks ago.Again nope...So I used a different browser and quite few websites and services that require my login details.No new Emails... with those websites.Kept using this brwoser for a few days and only stuff I already had cam again a few times but overall far less spam mails.Used the standard browser for a few hours with some login requirements and within a day I had corresponding Emails for a few of them.Found several bad tracking cookies in my browser.Bad in terms of redirecting all visited IP addresses to some addresses I can't even find.Deleted all cookies as well as the browser history.Reboot...A closer look at those suspicious Emails revealed that some include a thing similar to the old single pixel tracker.If you open them and not otherwise prevented it will result in some webservice knowing you actually opened the Email.Together of course with your Email address.The headers were good fakes too so the real sender is properly disguised.Those bottons and links mostly went to websites my browser protection already knows and prevents.Some however did not.In a sandboxed browser I was able to get onto some more or less convincing copies or the originals websites login page.The addressbar always started with originals name but then had a lot of cryptic stuff added to it.Sandbox blocked all what would otherwise make it throughcame through but the browser was rendered useless in the sandbox after I "logged in".Did another check and confirmed that all links buttons and such on that "infected" website also cause the same browser crash.Only difference was that only WITH something typed into the login field the browser tried to establish a new outgoing connection before getting dusted.Conclusions:The malicious Email provides the IP address used.Most if not all links within such an Email end on malicious websites.Some, especially at the beginning don't!!Instead the links go to websites that use cookies and other stuff normal protection mechanisms overlook.Somewhere between opening the link and closing it or the browser a change is made.Either you get a popup windows looking like some advertisement or when you start your browser the next time you see some website added that was not there before.The spammer now know you actually bothered enough to follow at least of the faked links provided in the Emails.The added bonus tracker provides ongoing supplies of websites you visit.A lot still use things in the address bar that identify them as a login page, even if it just starting with HTTPS.Popular websites and services get faked copies on servers in the dark web or at least outside normal DNS services.Now the spammer adds more and more Emails faking things you login to when using a browser for it.Until now nothing too bad or irriversible happend.But get fooled and actually click on a link in one of the new spam mails and it might be over.In the "best outcome" you would be locked out of your browser and have to delete it in safe mode or attempt a manual removal of the hijacker.A bit worse is if your protection started to fail and instead of the hijacke you end up with something manipulating your system.Really bad would be if you end on faked login website, and safety fails until you are locked out from your own system.Don't know what Email you might get after that and what demands to fix your system...However it gets worse: Like the one before but when enter your credentials and hit the login button the website jumps to some random Youtube clip or Goole search page.In case you wonder: You just gave the spammer your personal login details for said webiste or service....Most "deadly" would be if you end on more than just one like that.Every single one give the spammer a new login that you might pay for or that includes even more senstive data.Having to format and re-install all sudden is a thing of far too late then.I do not know if there was an Email I clicked on first, an infected advertisement or even some leaked Email addresses including my own on the internet for sale.All I know for sure is that those tracking options in the malicious Emails correspond to tracking stuff in the browser.No virus, no real malware until you click on the wrong stuff.Anything to prevent this from happening?Whatever you do: Do not use anything that requires the internet! - Just kidding!! Relax...1: Never click on anything inside mails from sources you don't fully trust! If in doubt copy and paste the link into an editor and check if it identical to the real address! Usually you would find some random stuff after the dot of the address name where you would other wise see .COM or .COM.AU.2. In case you ended on some spam or fake looking website anyways you should delete the cookies and browser history. The history might not be required though.3. Best would of course be to only allow known and trusted cookies or to not use any that survive a restart of the browser.4. Very important! If you start to get those Email very shortly after using it to create an account for something on the web then please provide the website you registered at with that Email address !!!5. If you get faked Emails for things you are actually registered with then please consider to imform the admins or support of this website about it. You might not have clicked on it but some user there might if nobody places a warning ;)What if all went to a total failure?I assume why you made that backup of all vital data and kept it updated?Also how install your operating system, in my case Windows, again.A hijack is easy, a fully infected or even encrypted system not.

Topic by Downunder35m    |  last reply