### Pursuit of Knowledge

So does anybody know when the winners will be notified?

Topic by eskimojo 10 years ago  |  last reply 10 years ago

### ill from knowledge

Have you ever felt like knowledge is being crammed down your throat in School? Do you ever feel physically ill (like you're gunna thow up)? You're going to be tested later on something insanely complicated? Today, for me, in algebra 2, we are starting to learn about conix, and I feel ill. There are so many formulas, so many variables, so many variations, so much space to make a tiny error, I feel like I'm gunna die in math. Unless anybody knows an easy way to memorize a bunch of complicated formulas and how to use them ;) anyone ever feel ill from knowledge?

Topic by guyfrom7up 10 years ago  |  last reply 10 years ago

### Knowledge First Aid

Hey guys! We're working on the first Knowledge First Aid Book that will be available for you in offline form too, for you to use when the internet may be down! The project is up on Kickstarter! Check it out! https://www.kickstarter.com/projects/1316623499/knaid-knowledge-first-aid

Topic by alexsmaf 2 years ago  |  last reply 2 years ago

### My knowledge is whole.

All gaps in my knowledge have been filled. I am in possession of all life's necessary information. The specific gravity of culm is 0.75. Steel wire with a diameter of 92mm has a safe working load of 930kN To temper steel to be suitable for twist drill, heat it until it turns a pale straw-yellow. An American fluid ounce holds 8 drams, but a British fluid ounce only holds 7.6861 drams In other words, this morning's post brought my copy of the 2010 edition of Glover's Pocket Reference. Actually, I don't know everything.  I know it floats in water, but I don't know what "culm" actually is...

Topic by Kiteman 8 years ago  |  last reply 8 years ago

### I've Always Wanted To Know.........?? Answered

On Instructables:- Who rates an Instructable?/How?Who decides which is the Best Answer--the author?What is an Altoids tin?What is Arduino?What Knex?_.....what does the acronym: AFAIK stand for?How do you write in that small text?_(Why do people remember other things they want to ask after they have posted/ gone offline/ put the phone down/ or finished a conversation???).

Question by Z.. 9 years ago  |  last reply 9 years ago

### Looking for UK based presentation on 'What makes a good instructable'

Hi, I'm a facilitator for a business network who are having a Knowledge Management related event in Bath on December 1st. I'm looking for someone to come and do a talk / make a presentation on the topic of 'What makes a good instructable' (or in our jargon - a good Knowledge Asset). I can offer expenses paid and dinner and accomodation the evening before and stimulating discussion with 30-40 KM professionals from a wide range of organisations. Any takers ? Any suggestions?

Topic by philridout 8 years ago  |  last reply 8 years ago

### How do we remember? Answered

If anything was an inspiration to education in the wider sense I would think the breadth if not the depth of knowledge the regular answerers here show is an excellent example. How much information can the human brain contain without exploding. Where in 1972 was a speed record of 11.2 MPH set? Who was the second president of the USA Alphabetically what are the first and last US states. What was the Beatles first film We can all, (well mostly), look up the answers but knows of the top of their head??

Question by rickharris 7 years ago  |  last reply 7 years ago

### Anyone here have hyperterminal knowledge?

I was hoping someone here would possibly know about using hyperterminal in windows. The situation is: 1. I am able to connect a laptop and a desktop computer via dialup modems through a 100 foot telephone wire, and transfer files using window's xp's hyperterminal program. 2. I want to somehow bridge the ethernet connection on the desktop computer to the dialup modem, to enable me to have internet access on the laptop via internet explorer/whatever. 3. If I can connect two computers via their modems with a frickin telephone cord and send files, then I know it is possible to bridge the ethernet connection into the modem like one would bridge a wireless connection to the ethernet port of a windows xp machine so they can connect a pc to the ethernet port and use internet traffic for it. 4. I know it's simply a matter of implementing it. Anyone have any ideas?

Topic by Punkguyta 9 years ago  |  last reply 9 years ago

### Measuring LED Voltage

Greetings... I have quite a few "salvaged" LED's, none of which have I the slightest clue as to their voltage. I have attempted to measure them using the diode setting on my voltmeter with dubious/mixed/questionable results. Although the measurements are momentary (the reading is barely of sufficient length to note), I can usually arrive at a value. Unfortunately, when I repeat the measurement on the same LED the reading is invariably different. For example, I just measured the value of a random LED (green) and came up with the following: 1.3. 1.4, 1.8, 1.6. I've rounded the values to the nearest decimal point. Are these values through voltage? Are the differences between the readings significant or should I use the minimum when calculating resistor values? I'll, no doubt, have a few more question later on. I appreciate your elucidation on this matter... Best to all, hassi

Topic by hassi 11 years ago  |  last reply 5 years ago

### Game Test (Professional)

In our country now is NewYear ! And I found a small contest in a game magazine . That have 40 hard questions ! But I found 15 digits of them . I don't know others . 20 question are music and 20 question are shape or text . All are about games . Please help me if you can find an answer of these questions . You can find their pictures below . The questions I couldn't found their answers yet : -------------------------------------------------------------------------------- 2- Which game have this gun ? (picture in below) 10 - "WHIRLY" cheat is for which famous  game ? 11- Which game have this big enemy ? (picture in below) 13- What was the name of this gun shop that "Lion" and "Clir" went to that in "Resident Evil 2" ? (picture in below) 14- Which game have this gun ? (picture in below) 15- Which game have this enemy ? (picture in below) 16- Which game have this map ? (picture in below) 17- What was the name of the "Number 14" player of "World Selected team" in FIFA 99 ? "Other question are music . You should say this music in for which game . (I answer number 28 , 38 and 40) - For hear musics you need a music player ." Musics : Number 21   Number 22 Number 23 Number 24 Number 25 Number 26 Number 27 Number 29 Number 30 Number 31 Number 32 Number 33 Number 34 Number 36 Number 37 Number 38 Number 39 ------------------------------------------------------------------- I can't wait to see your answers !

Topic by farzadbayan 8 years ago

### Kansas City Area DIY Exchange

I - INTRO Hi everyone! My name's Tom Deslivres, and my wife and I recently moved from France to the Midwest, in the Kansas City area. We've been able to meet makers, hackers and crafters from all over the area and thought I'd turn to my favorite online makers community to try and meet even more of you creative people out there on Instructables. I'm also going to put down here the info for spaces that are publicly accessible, as well as local news and resources. It'll be a central hub for myself, as well as you if you need it! And of course, if you spot something I haven't listed here, let me know so I can update this topic. II - KANSAS CITY AREA MAKER- AND HACKERSPACES CCCKC https://www.c3kc.org/ Address: 11224 Holmes Rd. Suite 115, Kansas City, MO 64131 (inside DeVry University) Open house: Friday evenings HAMMERSPACE http://hammerspacehobby.com/ Address: 440 E 63rd St, Kansas City, MO 64110 Open house: Thursday evenings, 6PM to 9PM BLACK & VEACH MAKERSPACE [OPENS EARLY FEB. 2016] http://www.jocolibrary.org/makerspace Address: 9875 W 87th Street, Overland Park, KS (inside Central Resouce Library) Access: Freely accessible during Central Resource Library opening hours SCIENCE CITY MAKER STUDIO http://www.unionstation.org/sciencecity/attractions/maker-studio Address: 30 West Pershing Road, Kansas City, MO 64108 Open house: Tuesday evenings III - LATEST NEWS [COMING SOON] IV - RESOURCES [COMING SOON] V - ​[Reserved]

Topic by thirtythreedown 3 years ago

### I was studying calculus today and decided...

Today i was studying calculus and decided i should study stuff i might actually need. Any ideas for how i can take my knowledge from school last year and remember it for this upcoming year?

Topic by Yerboogieman 9 years ago  |  last reply 9 years ago

### Led Clock Feasibility - my first arduino project

Hi guys and good morning all from a total newbie to this world. The aim of this post is to ask you guys if i'm going the right direction to master the knowledge to build my project. To cut a long story short, my plan is to build a clock mixing the old style design of reclaimed pallets with a touch of modernity using LEDs to mark hours , minutes and seconds. The aim is to keep all the lights ON once the given time has passed. To be clearer, if the minutes are "18" i would like all the previous leds (0 to 17) to be all on. I'm pretty sure that the knowledge to build this resides in mastering Charlieplexing and Shift Registering (please correct me if i'm wrong). So at this point in time, i know what i have to "study" to give life to my project the way it's designed in my mind. I've already seen some clocks working this way, hence i'm pretty sure it can be done (happy days!). Point is that i've only seen clocks where this design is achieved with only 1 row of leds. My aim is to swith on 4 rows at any Tn time. So, for the minutes, once it reaches 59, i should have 59 * 4 = 236 LEDs ON simultaneously (for the minutes only... plus N for the hours). Can anyone point me to the right knowledge to be mastered to achieve this? I'm assuming is a problem of sustainable voltage (resistors, power supplies etc etc) leds in paralel/serial; multiple shift registers and so on so forth... I'm attaching a small mock-up to be understandable on what i would like to achieve (it's based on the first 5 minutes of each hour). I've marked "Ok" the first row, meaning that since i've seen something similar, i'm confident in knowing what needs to be mastered to achieve that result. The "?" refers to what i haven't been able to understand if it's achievable or not (row 2, 3 and 4). Would it be advisable to build a Matrix for each of the 4 row (with N 8-bit microcontroller such as SN74HC595, for each row) , or can be achieved with a "simple" 4 X 60 matrix? Thanks a lot in advance to everyone "wasting" their time to give a helping hand! Seeya! Ivano

Topic by IvanoArduino 1 year ago  |  last reply 1 year ago

### REPAIR SECTION

YOU INVITING OUR FORUM TO SHARING YOUR USEFUL KNOWLEDGE

Topic by sonnymobile 4 years ago  |  last reply 4 years ago

### What is the greatest advice ever given to you?

Sometimes, there are hidden gems of knowledge, when shared with you, made a huge impact. What was one (or more) of yours?

Question by lutziepv08 9 years ago  |  last reply 9 years ago

### Is there a software that can compile all the answer guides here into pdf manuals, or a directory of related questions?

Question by mikedu 9 years ago  |  last reply 9 years ago

### Core Skills

Topic by EmmettO 8 years ago

### electronics knowledge magazine online www.circuitseed.com

Provider schmatics electronics circuit such microcontroler ,hobby electronics ,rs232 full duplex, etc if you want to experiment at home leaning by doing it you self see you as soon as posible on www.circuitseed.com[:D]

Topic by phruchya_2498 12 years ago  |  last reply 12 years ago

### Wikipedia really is the source of all knowledge?

Well PKM and I were discussing the existence of Maxibon, a very tasty ice cream bar from Nestle which is hard to find, this was in the chatroom, which if you ever frequent you'll know how the conversations go in there. So a little while later I'm kicking about and take another gander at the wikipedia page about maxibon, all seems sensible, until I hit the flavours list, being a fan of powerthirst I instantly recognized these flavours, which some from the second of the two productions found here.Here's the strange excerpt, watch Powerthirst two for the full understanding of this strange addition... Maxibon is now available in several guises and flavours including SHOCKLATE and all new experimental flavour, GUN!Although the standard Maxibon flavour is refugee, several other limited edition flavours were introduced in the late nineties. Marketed as Maxibon asylum, the concept involved the actual flavour of the ice-cream remaining a mystery until the package was opened.In addition to the standard size, they are also available in snack sized servings in packets of six; these are substantially smaller than the traditional Maxibon.There is also a new release Maxibon Cookie, where the ice cream is in a round shape and covered in cookie dough.The page can be found here I know this isn't a big or new thing, I just found this a funny example of what can go wrong with the wiki societies.

Topic by killerjackalope 10 years ago  |  last reply 8 years ago

### knowledge about wire which use in solenoid?

I want to make a solenoid & i am confused because i don't know that which type of wire is use which no or ohm . Actually i have a project in which I want to produce electricity  with the help of magnets or solenoid . So can u plz guide me this matter very gently  Thank You Ashish Dhiman

Question by adhiman2 7 years ago  |  last reply 7 years ago

Hi Everybody!  I recently salvaged a 1/3 hp single phase AC motor, which I'd like to use for a lathe.  I've been looking at diy lathes on instructables and elsewhere and have found that DC motors are mostly used in these kind of projects.  I understand that DC is generally battery powered and AC requires a power cord and each can be converted to the other.  My question is whether an AC motor is suitable for a lathe and whether any extra safety concerns are involved.  Should I convert it to DC?  Should I buy a DC motor instead?  Also, any information about whether or not the single phase business is a problem would be helpful too.  I have found a lot of interesting theory and a few interesting tidbits online, but I could really use some experienced opinions.  And I don't know anywhere better than instructables to ask for those. Help, please, and thank you!

Question by action pig 8 years ago  |  last reply 8 years ago

### Electronic knowledge wanted: Transistor/Transistor logic Answered

Hi all. I am embarking on an electronics project and I was hoping to gain some info on using transistors as logic gates in a circuit. I searched both the interwebs and instructables extensively, but all the info I could find was either outdated or was in a level of techno-babble my Noobish hardware skills could not comprehend (been programming for years; Just recently decided to dabble in hardware). To summarize: I want to know how to construct AND, OR, NOT, XOR and the like and integrate it into my circuit using primarily transistors, and maybe some capacitors. Is there something I have gotten mistaken in this premise? Is this really the proper use for a transistor? Should I use something else, is there a better method? Please note that I have little experience in non-software areas (I understand what voltage and amperage is (kinda) and what serial and parallel circuits are, and the proper configurations of positive and negative). I also do not want to use a microcontroller for this; Just me and my wires. I would be immensely thankful for some help. I apologize in advance if I have gotten anything wrong here.

Question by dungeon runner 9 years ago  |  last reply 8 years ago

We want to make a paper model by quilling... so we want the basics and some extra tricks and knowledge for quilling... Thanks for help...

Question by Mr AbAk 4 years ago  |  last reply 4 years ago

### How can I know knowledge about the force

I mean how to use my hands for picking and lifting object

Question by atta boakye 10 years ago  |  last reply 10 years ago

### Any knowledge on a peltier cooler thermoelectric cooling module

Needs help putting assembling a thermoelectric module for a possible inventing.  Suggestions on the supplies and parts needed

Topic by jayhead 7 years ago  |  last reply 6 years ago

### Where to learn to start reading schematics and knowledge of electronics

Im just a noob here and everything, dont know all that much about electronics and stuff, but the idea of making all these little gadgets (like an altoids tin ipod you can use anywhere) seems really cool, interesting and most off all very useful. Do you guys have any ideas of how I can start to assemble a basic knowledge of like circuits and stuff and of electronics. Not adavced stuff to start off, just like if I wanted to make something like a porximity detector, or like a microphone bug (thatl send what it hears in one room to a reciever in a diff room), basic stuff like that.

Topic by Aerandirel 11 years ago  |  last reply 9 years ago

### Repulsine - the great mystery...

Topic by Downunder35m 25 days ago  |  last reply 21 days ago

### what is science

Science is having knowledge in all and it is connected by technology    technology is useful application of scientific knowledge.  it is slogan !    knowledge is power but most better than imagination.

Topic by rodniactive 8 years ago  |  last reply 8 years ago

### High school students' lack of knowledge regarding 3D printers.

Has anyone else come upon the severe lack of knowledge about 3D printers by high school students, and possibly people in general as well? Today, my teacher announced to my art class that: "Some architects will be coming in to show us their 3D printer that they built". Then, practically every student started to say things such as: "what the hell is that?". The teacher then said that: "it's like a printer, but it prints things out in 3D". After that, one student asked: "so it like prints stuff out on paper in 3D?" So the teacher replied: "no, it prints objects out in 3D". Then, the same student asked again: "so it prints stuff out onto paper in 3D.....?". It went on like this for about 5 minutes, until the teacher got tired of explaining from her limited knowledge of 3D printers. After the teacher managed to end the conversation, I heard murmurs from the others saying things like: "I don't get it..?" and "That doesn't make any sense..". Has anyone else encountered this? (not that I'm an expert on 3D printers or anything..) Thanks -Me

Topic by tqwerty 6 years ago  |  last reply 6 years ago

### Help with transformer spark (probably simple if you are knowledgeable on the subject)?

I am building this poster that is for a school project that is supposed to be about me so I decided to do it on electronics. One of the parts is a small spark that I am trying to make. The difficult thing is that I am trying to make it from a battery supply (whilst using a transformer) and that I am presenting it so the spark needs to be pretty visible and noisy. I had a wall power supply that took 120VAC and output 4VDC. I removed the output smoothing and rectifying circuitry so all I was left with was a transformer. I connected a 9v battery to what used to be the output through a pushbutton switch. Then I placed what used to be the 2 input wires (there is a center tap as well I think) close together. Upon clicking the pushbutton switch I get a spark of maybe 1mm. (the spark seems to jump when I open a previously closed switch rather than when I close it. Is there a way I can use a capacitor to get a more sustained charge? My results were faint in sound and visually. I need to present this to a room. Is there a way I can automate the switching process? I tried to use a ceramic resonator but I have little understanding of how those work since I have only used them in embedded electronics and would just align the proper pins. I am thinking about sing a 555 timer and tying the output to a transistor which would supply the transformer with 9VDC. Is there a way to get a spark from DC battery supply without a transformer? It seems like the transformer adds complication since it is made for AC. I am thinking about tying the output of my current setup (which produces a small spark) to the input of another transformer. Will this work? Will the spark become even more faint if I do this? Thanks, and I understand that I am working with HV at my own risk.

Question by seanroberts 8 years ago  |  last reply 8 years ago

### Would like to talk to person with knowledge of runmaster 250 kinroad buggy on mechanical problems?

Question by Flaharty 9 years ago

### Test your instructables knowledge with the first ever graded instructables quiz!

Are you a walking encyclopedia of all things instructables? Or do you not know beans about the site? You don't have to wonder anymore-take the awesome quiz!Then post how you did here! EDIT: I forgot to add, after you view the results, the correct answers for all questions are displayed, along with mildly witty comments. So you do find out who it is who really likes hawaiian shirts. ;)

Topic by Lithium Rain 10 years ago  |  last reply 10 years ago

### how to make a burning laser but i don t have knowledge ?

i make an own homemade burnig laser to i laser the cocroach to avoid a laser and to produce a fire and discover the laser gun

Question by Waren-Neutron 8 years ago  |  last reply 7 years ago

### INSTRUCTABLE COMMUNITY! see if one of your instructables can help someone in a developing nation. Building for a good cause!

Topic by LoganMackey 8 years ago  |  last reply 8 years ago

I was thinking of starting to earn a little money by making custom computers, etc.  However, most or all of my knowledge of how to do things like this has come from places like Instructables, eHow.com, the local library, my friends, etc.  I was wondering if it is legal and ethical to make money using knowledge from these sources.  Recommendations and opinions are welcome.  Thanks! P.S.  I apologize for any spelling/grammatical errors--I recently broke my wrist, and since typing is quite inconvenient in a cast, have tried to get my message across with as little typing or backspacing as could be managed.

Question by mad magoo 9 years ago  |  last reply 9 years ago

### DIY MIDI converter for drum signals?

Hello, I am trying to build a Electric drum set, I have an acoustic kit right now, And piezo buzzers. I would like to know how to convert the voltage coming out of the piezos to a MIDI signal, To run into a synth with drum sets on board. Is there any DIY way or cheap little box to convert it to any selected channel? So, if you have any experience or knowledge on this subject? If so please answer!! Thank you!!!

Question by ski4jesus 7 years ago  |  last reply 6 years ago

### How do you all become so knowledgeable about electric and computer technologies?

Circuits and semiconductors and transistors and capacitors all confuse and intimidate me so... :-\ I want to know how to turn a walkie-talkie into a communication jammer like in Fringe or create an X-ray machine from an old tube TV like in Burn Notice. Ultimately I'd like to become an FBI agent or CIA spy, but I've gotta start somewhere, so asking how to do electrical engineering on Instrutables is the first place to start I'd imagine.

Question by Pompom 10 years ago  |  last reply 9 years ago

### how i make my solar battery charger but i dont have knowledge ?

you make a own solar battery charger to not buy more battery or new battery.

Question by warengadia 8 years ago  |  last reply 8 years ago

### Where are all the biohack'ibles?

Are there any biohackers out there with knowledge to share? I've seen some PCR machines.

Topic by g_Bear 6 years ago  |  last reply 6 years ago

### Share what inspires you to make Instructables!!

Hi, all - I'm in a bit of a pinch, and need to do a quick interview with someone (15-20 minute phone call) who is a great Knowledge Sharer... so of course, I thought of Instructables!!     Urgent Request: 20-30 minutes of your time for a phone interview about Knowledge Sharing. Timing: Today - I can call you between now and 5pm Pacific. Reward: eternal gratitude plus tasty beverage of your choice at a café or bar in the SF Bay Area. I'm doing a workshop on Design Thinking, and my group is focusing on Knowledge Sharing. I'm looking for someone who is an active contributor to a site like Wiki, Instructables, or any other that is widely used for Knowledge Sharing.   If you can help, please email me at heather_fell@yahoo.com and include your phone number, I'll call you back right away.  Thanks, Heather

Topic by hloza 4 years ago  |  last reply 4 years ago

### Questionable content of Instructables - Questions

I've got a few recipes for such questionable things as making a powerful poison out of cigarettes, and timed bombs, etc. Would these instructables legally be allowed to be posted? I am a firm believer in knowledge for knowledge's sake, and don't advise actually carrying out certain experiments like these, but I think that if someone wants the knowledge they should have access to it. (I can certainly see this liberal thinking backfiring in the case of a terrorist wanting to know how to bypass Pentagon security, or whatever other dire situation you can think up.) So, allowable or not? I don't want my account deleted because of my ignorance of e-law.

Topic by gdtripp 9 years ago  |  last reply 7 years ago

### Need an expert in Fluorescent lamps to end an argument Answered

My knowledge on fluorescent bulbs is limited, but still more than the average layperson.  A gentleman at work claims that by touching the contacts of a 9V to the electrode contacts on one end of a fluorescent bulb, one would recieve a shock at the opposite end if a tounge were applied.  I don't believe this is true, but don't have the difinitive knowledge to back it up.  Help Me!!!

Question by kretzlord 6 years ago  |  last reply 6 years ago

### Time Fountain

Wouldn't be cool if someone made one of these for the LED competition? I definitely do not have the LED knowledge to do this.

Topic by Spl1nt3rC3ll 11 years ago  |  last reply 7 years ago

I want to un-subscribe to the newsletter, Is this possible? If so then how do i do it? Answers/knowledge appreciated :)

Topic by Rabid.Fang 9 years ago  |  last reply 9 years ago

### CAN SOMEONE ELSE ACCESS MY COMPUTER WITHOUT MY KNOWLEDGE USING BITVISE TUNNELIER?

Hello. recently i was having problem with my pc and someone offer to help. i was asked to download bitvise tunnelier so ther can remotely have access to my pc wish i did, although i had to give them a password and login to get entry BUT I WAS WONDERING IF THEY COULD STILL ACESS MY PC WITHOUT MY KNOWLEGDE?

Question by emma_kt1 6 years ago  |  last reply 6 years ago

### I am trying to fix old B&amp;W photos, and have limited knowledge of gimp, please help

Question by 10 years ago  |  last reply 8 years ago

### how to make a simple LED running message display?

Question by jir3h 8 years ago  |  last reply 8 years ago

### i'm looking for dog agility jumps instructions?

I am looking for knowledge on how to build a dog agility jump out of pvc?

Question by 9 years ago  |  last reply 7 years ago

### Wind-up Kaliedoscope Goggles

Acid-punk, haha. I would love a pair of these (they don't exist, to my knowledge)

Topic by RefStone 8 years ago  |  last reply 8 years ago

### Can I report a drug dealer if I only have his cell phone number?

Question by Useless Knowledge 10 years ago  |  last reply 4 years ago