l love mobiles

it was a huge round one..purple

Question by lovegumm   |  last reply


how to make a remote controll boat ?

How to make a boat engine

Question by heads187   |  last reply



How can we create a new group? Answered

I want to try creating and handling a grp  thats why pls send ASAP 

Question by goneholidays   |  last reply



how to make an rf remote controller?

How does a rf remote works imean its principle and how to match transmitter and receiver

Question by avinash reddy   |  last reply


want to study robotics.Which engineering branch should I take for this?

I want to study in the field of robotics which field of engineering i have to do

Question by yash.goyal.9887   |  last reply



about mini project

am doing one mini project about light following robot....iam in need  of source coding for that.could u lend me that me for .....awaiting for ur rply..........

Question by srinandhana   |  last reply



what is the basic way of using leds as display from its matrix? Answered

What is the way of using leds as a display and how a specific leds are lighted in matrix 

Question by avinash reddy   |  last reply




effecient charger making?

I wanna make a charger for 4v, 0.5A batery 1)just suggest me the value of capacitor and inductor for filter ckt 2) and wat ampere of current should be sent to battery for fast recharging (at safe zone

Question by electrical sniper   |  last reply


pleas help

I am sami ,i have iphone 3g 16gb, i have not account on app store, i want to download apps from  app store for free, pleas you can help me for on free account?? thank you soo mush

Question by redouan   |  last reply


i am having a trimmer which i am not using can any one say me hoe to use it for electronics apllications?

Pleaze say me as many apllications possible example in audio side , digitalside, communication side and like wise

Question by avinash reddy   |  last reply


Interfacing the nxt and rfid via the ardiuno?

I am  having a problem here,I am to connect an rfid card reader to the arduino microcontroller and then the microcontroller to the nxt robot.From the researches that i have made i have learnt that the nxt communicates with the ardiuno microcontroller through I2C while the microcontroller itself reads data fom the rfid antenna using an UART bus.I am wondering if you could help on the code to make the arduino send a message to the nxt.

Question by roagile-2007   |  last reply


Hello all friends , I wanna make a DSSC , i need to make TiO2 as Semiconductor ,from which sources can i make it?.

I have a research to make Dye-Sensitized Solar Cell-DSSC and i should make every materials by myself in Lab. how can i make TiO2 and from which sources ? to be more cheap and easy . and what is an alternative material for Iodide ( electrolyte ) in DSSC? thank you for replying and for sharing your knowledge about. :) 

Question by Omid1985 


Whats it take for someone to get featured? Answered

More explanation, more photos, hand-job?

Question by Yerboogieman   |  last reply



Convert to Electric Car? Answered

Ok i had a powerful, fast, and great RC car, but the carb went out, i tried a different carb but it just wouldn't turn over, how can i convert it to Electric and still be fast?

Question by Yerboogieman   |  last reply


iron man is jealous, and I need your help

Anyone want to help me build a diy version on a flyboard. Looks like I hose which attaches to a jetski jet which controls the direction of the jet stream from a foot mounted modified wakeboard. Not sure how the controls and hand cannons work, but seems like something we could tackle. Anyone in? http://www.gizmag.com/zapata-flyboard-jet-pack-watersport-boots/20772/

Topic by JoeMurphy 


can you get me one ?

Question by kenneth123   |  last reply


does my instructable have potential? Answered

Https://www.instructables.com/id/Stained_Gladware_and_what_to_do/]https://www.instructables.com/id/Stained_Gladware_and_what_to_do/

Question by Yerboogieman   |  last reply


What should the wires connect to if i took an RC Jet ski servo motor out of it ?

I recently took apart a RC Jet Ski. Within the Jet ski there was a servo for the rudder, a impeller to take out water that had been splashed in side and a motor with loads of wire leading to it, to drive a propeller (Jet ski's don't have propellers but this one does. I Need to know what wire leading up to the RC servo motor do (green and brown). If I were to take the wires and use them on something else whhat shall I controll them with? My first thoughts were that sending an electrical current though the postive, would make it turn one way, and by the RC control, electrical currents could be past though postive and negative to make it turn left and right. I know what all of the other wires do. Thanks Oscar 

Question by oscarthompson 




Rc Servo motor trouble! Answered

I recently took apart a RC Jet Ski. Within the Jet ski there was a servo for the rudder. I Need to know what wire leading up to the RC servo motor do? (green and brown). If I were to take the wires and use them on something else what shall I control them with? My first thoughts were that sending an electrical current though the postive, would make it turn one way, and by the RC control, electrical currents could be past though postive and negative to make it turn left and right. I know what all of the other wires. Thanks Oscar 

Question by oscarthompson   |  last reply





why exactly did instructables create pro accounts??? Answered

Now I can't view all of the steps on one page! *sadness*

Question by gorgo333   |  last reply



How to generate continuous electrical energy from piezo plate? Answered

We want to make a free energy generator from a piezo plate but it does not gives continuous energy so how we can make a circuit to help us??Please help us... Please try to give photos or circuit diagrams...

Question by Mr AbAk   |  last reply


Can you put a 13b Wankel Rotary in a Corolla or Camry? Answered

13b wankel rotary engine. 89 Corolla 87 Camry.

Question by Yerboogieman   |  last reply


Firebert010's Shop

My shop will be updated as I see fit. For Sale: JET SKI: Stand-up jetski of unknown brand or type. It runs perfectly, and the motor is in excellent condition. Outside is a bit buffed up, but it runs like a charm. Pictures below. Bidding starts at $350 if you pick it up.

Topic by Firebert010   |  last reply


Is it wrong for my health? I know it's wrong but!!! Answered

I just swallowed  abut 3 teaspoons of coffee,drank a glarss of pepsi, about 200ml of 42% alcohol cane liquor at a party. what are the effects? quick buffor i fueint outt

Question by ARJOON   |  last reply


Is there a way that i can make a cheap beer scooter? Or anywhere with some plans? Answered

Has anyone ever seen the beer scooter? Its awsome and me and my friends want to make one but don't know how... Link to beer scooter

Question by Doveman   |  last reply


Piezo plates....How To Connect In parallel Or series? Answered

Hello Everyone... We Have Some Piezo Plates And Wanted to connect them parallel or in series to make a circuit that makes energy to charge your phone... We want to use them in boxing gloves or something like that to get sufficient energy to charge a phone.... Our Piezo plate has 3 wires as shown in the image... Please provide a circuit diagram also.... Thanks for your help....

Question by Mr AbAk   |  last reply



Can a digital picture frame be hacked to play movies from a memory stick or usb? Answered

I have a audiovox digital picture frame and it does'nt play video. i was wondering if there was a way to put a code or something on a memory stick and hack it so you can play mp4 movie files on it. (if you put a memory stick in with a mp4 movie it says no playable file) please help i really want to watch movies on it Thanks

Question by rada194   |  last reply


Is it just me or this doesn't work..batch?

 I tried making a batch and it looks something like this (it is a subsystem)Bold words need paying attention to: :mainmenu echo choose your selection: echo 1 apps echo 2 editor echo 3 phun not done echo 4 sites not done set /p choice= if %choice%==1 goto :apps if %choice%==2 goto editor if %choice%==3 if %choice%==4 echo error wrong choice pause goto mainmenu I would like to KNOW the goto and heading does not work! Please tell, I need it for my subsystem and you will recieve credit for it when I post the 'ible UPDATE Does 3 and 4 have to be filled in?

Question by knex_mepalm   |  last reply


What type of metal would work best to make the piano (piano?) in music boxes? Answered

 I have been wanting to make a music box in large scale.  The music box I am referring to is a mechanism that when a crank is turned, a metal cylinder attached to the crank revolves.  Attached to the cylinder are metal teeth, which pluck a piece of slotted metal, like in the picture below (which I will be referring to as the piano, because I have no idea what term is actually used to describe it).  Usually these can be found in bookshops, and commonly play "somewhere over the rainbow".   As I mentioned, I want to construct one on a larger scale.  The problem is, I do not know what to make the "piano" with.  I tried an old tin lacquer can, but the metal proved to be too flimsy to produce the sound required.  Then again, I don't want something too hard to where it cannot be plucked.  Which type of metal would be best suited? In my previous attempt, I just scaled the image below, traced and cut it out.  Is there something that I'm missing, or is it just the metal? I have been running dry on Google, and can barely produce any images of the item I am looking for.

Question by Doctor What   |  last reply


Hydrofoil Surfing - A New Adrenalin Sport

Listening to Silvio Rivier, the host of Global Village, there was a section on Hydrofoil Surfing. I turned to the television, interested by this large word, to see this guy surfing a foot above the water! It seems that instead of floating along the water like a normal surfboard this board actually would be below the water while you stand on it. A jet ski pulls the surfer up to speed, bringing him up to the top of the water, but that's not it, there's a fin that leads down a foot and a half or so below the board, and attached to the end of that is a special shaped piece of metal called a hydrofoil that collects the water as it comes up from the bottom of the sea and goes over as a wave. The surfer then keeps going upwards, until the "foil" is about 4 inches under the water. Therefore the surfer can balance above the water, with very little resistance & going very fast. It's technically possible that this could be used for surfing not just close to land, but hundreds of miles out, so the person can surf for as long as their legs hold out, because they can surf in rougher water. Does any body think they could build one of these? Balancing on one is supposed to be like using a uni-cycle, & I'm having trouble surfing normally so even if I did build this I probably couldn't ride it. This goes out to Laird Hamilton, the creator of this funky board, & I'm looking forward to an Instructable. Cheers everybody, ~K P.S. The links aren't working so I'll add them as soon as possible. Neither is the video button, sorry about that, I'll have to add a picture instead.

Topic by Kryptonite   |  last reply


Repulsine - the great mystery...

Even before the repulsine saw some attention during WW2 there were sightings of what we know call the classic UFO shape.Be it in Austria, Poland or other places in Europe, people reported weird disk like thing with a dome flying around.What leaked in images and documents after the war shoed that the repulsine looked basically identical to what people saw as a UFO in the sky over big parts of Europe.Then again, the repulsine appearently never made it a usable stage, same for most jet fighters at the time and still they flew around...If we now just take it for granted that actual test flights really happened back then you might wonder why we did not see any after the war anymore.For most critics it is a simple sign of facts and "confirms" that the replusine might have been a nice idea but never anything that really left the ground.As said, I often like to dig deeper and in this case the digging took far more years than what I planned on.I can not provide any solid proof for the following but I am sure even a sceptic will come to similar conclusions after reading it.Try to find some "eye witness" reports from people who saw the so called "Roswell UFO".Yes the one that made Area51 so secret and famous...Reports can be boiled down to some essential features of the hull, for those who saw it proof that it is alien.Three distinct round shpes on the underside, like you add the bottom of an egg to a round disk.Said disc of the bottom was also shaped like a wing, or the flying disk toys our kids like to play with.On the other side the shape grew up like a half shphere with an added cone or round top on it.On these area they claimed to have see engine outlets or similar and appearently the top cone was spinning in another direction than the rest of the UFO.Now I am no expert for Roswell but if I leave area and time out then I could have been fooled to think these people discribed exactly the same thing people saw a few year eariel flying over Europe.The Roswell UFO was not from another world, just stolen from the looser of a really bad war.What was seen was a working Repulsine, be it an original or something the US created from the 5 prototypes that disappeared after the war.Ha, ha, good one, then why don't we saw them flying after this anymore?Well, for starters it was a testflight gone wrong.Presumable it was planned to be limited to Area51 but the pilot lost control.Considering the Nazies appearently did their best to kill everyone involved in the project before the aliies arrived it is no big surprise.What that test flight would have shown is the impossible manouvers people already witnessed over Europe.90° or more turns at full speed instead of making a turn like a plane, sudden changes in alitude as well as accelleration on a level that makes even modern rockets blush.And if it really was the first bigger testflight they did it explains the big secrecy about the Roswell incident and what followed and created Area51 as we knew it.A "weapon" capable of these things would mean total dominance and options to impove planes and more.So why did they not even do that - or did they?The repulsine was created based on what we call today fringe- or pseudo- sience.If there is only one peroson, or a few that can even understand the claimed working principles that it can't be science as we know it.So, lets take a look what things were already heavily used in the repulsine that "we" claim to have developed or discovered decades later.Coanda effect.When air travels over a surface then it will follow the surface.You can try this with paper strips and blowing on them as well as a stream of water and some shaped objects.Long known but never found any real use until the military picked it up.For example air inlets were then developed to utilise the coanda effect.Remember how a lot of them these days look like a ducted fan housing?The round and slightly conical shape of the inlet will actually act like an airfoil and provide lift - of pulls forward in the direction of the air flow direction of the engine.I supercars we use it to create more downforce and better aerodynamics.Venturi effect.Again a very old one but funny enough also a major factor to make a jet engine work.Tesla turbine.In the Repulsine the rotating copper disks acted like a huge Tesla turbine by using a similar effect.The space between the disks got smaller and smaller towards the outer perimiter.Due to the fast rotation the molecules were accelerated and this created a partial vacuum.We use these principles today for specail vacuum pumps but also in military applications.Harmonics.Without harmonics and resonance the Repulsine would have been impossible.And at a first glance it seems we never made any use from that bit of the machine.Then why do we design exhaust systems in such a way than already the extractors ensure a pump like action and controlled backflow?The sound a good exhaust makes is also based on using the harmonics created by the explosions in the cylinders and expanding gasses.We learned that it is far more efficient to use harmonics and resonance in an exhaust system from somehwere ;)Plasma.The repulsine was said to have emitted a bright glow during certain movements or speeds.To create plasma we need a lot of energy, not so much however if the plasma is a by-product anyways.We learned that a high enough voltage differencial in a vacuum can create a nice plasma arc.From there things like analog TV monitors were created.But we never made anything that creates plasma for any use in an atmosphere.Well, unless you start to check supersonic rocket engines and other things.The working principle is very, very close here in some applications like the ramjet.Vortex energy.Today we see all vortex energy stuff as a free energy scam or at best a waste of time.But from the inlet to the outlet the entire Repulsine utilised what we now know as vortex energy, vortex math and so on.The air is twisted and spun around so many times that it is hard to keep track - but it always happened in a harmonic and resonant fashion.In some way this is implepemented in very expensive cars to keep the ventilation system almost silent even at full power.If you ever take an expensive car apart you might wonder why the air system is not as smooth and straight as you would have expected to get this silence ;)There is more but the list would become too long ;)So, if the repulsine was really that great then why was it taken apart to only utilise fractions of it in other things?If you have something really great that combines a lot of things then no one would suspect if you "developed or discovered" some of it in other projects.And to give you a very bad comparison for the other way around:If you know how to combine a petrol engine with some long blades then you could fly!I know, we did that already but you get the point.I can give you a motor and blades but that would not mean you could build a plane or even helicopter!At that time and still today something like a Repulsine would upset the "balance of power".If claims are correct then the engines of the repulsine were only required to provide the enrgy for directional changes or speed but it flew on "free energy" as the main engine system.In lame words like a jumbo jet that only needs a small engine for the hydraulics and electricity...Another big problem is the replication even if you would have a complete and working model to disect.You see most parts were brazed or welded as screw or rivets would have been problematic in certain areas.Other parts like the Kudo horn like intake systems would even today pose a challenge if you want to replicate them 100% correct.And if your understanding of science and physics greatly differs from those who originally created the thing...If your understanding tells you a dice has 6 sides (we all know that) but in my understanding it would have 16 then you would never understand how my dice rolls ;)Bringing true free energy of any form into this world is only allowed if someone can still make good money from it.Just check solar cells and wind generators - we all can have them but our providers make sure they have enough of them as well ;)Will we ever see a fully working Repulsine again?Of course !Some people like old cars, some collect old planes or old machines and tools.A great project for people in the right trades is always to build thier own little steam engine.So to say as a reminder of how it all started.Same will happen with the Repulsine as the first really utilised free energy machine the world had.The war and killings were not what really scared the world.This happened and will happen over and over again to various extends.Really scary was once certain people realised what might happen if over there the war would end with a victory and people would have time to develop for peaceful things instead.Without the war or this idiot Hitler a peaceful war would have taken over the world by storm.Those making sure we know nothing else but paying for our fuel and energy would have lost their monoply.Times change though...We destroyed our world with our needs for fossil fuels and electricity.What is left we destroy by chopping it down, digging it out or just by building new estates on prime farm land.People are now more desperate then ever to find ways to reduce their energy bills or enviromental impact.Otherwise Google wouldn't make billions on all the fake free energy videos out there.But what would it take to recreate the Repulsine?The person able to come up with the understanding of at least attempting to build one again would need to have certain qualifications and titles.He or she would hold a Nodel price for completing some of our known laws of physics or for finding some of the still missing ones.It would be a quite hard to understand and like person too, maybe even highly autistic.The person would also have an addiction like need to complete things, add the missing bits.And of course a totallydifferent understanding on how nature and the universe work.David T. from England is such a person, or at least the closest mankind can offer so far.He can see math in his head as shapes and images.Complex math problems appear to him like developing landscapes in high detail.He even learned to speak icelandic fluently within 7 days!!Imagine such a person would develop an interest in the old pioneers like Schuberger, Newman, Tesla and so on?Where we normal people fail to see any relevance or connection a guy like David would be able to literally see how all these inventions and ideas connect.He would be able to SEE the math behind it!Knowing how something was supposed to work and combining what is known through patents, drawing, videos or reports would enable such a person to make conclusions.For example where we might just see a nice pattern when we throw a stone into an undsturbed lake such a person would also already know and see the corresponding math the created the waves and why they were created exactly like this.Assuming David has no real interest in such things, then is it possible others already try?Sadly yes and even worse they do it with kids.Learning methods that are different can bring great results.For example while we use a calculator for big numbers some kids attend really strict and performance based classes to do this with an ancient abacus!After years of hard and often painful training they are able to it with a small abacus that only has a single row of discs.Shortly after they graduate to a virtual abacus - they only twitch their fingers in the same motions they would use on the real thing, but the disks and rods are all just visualised in their heads.That however is all meant as an improvement and the kids do it because they want to and not because they are forced to.Like learning to be a chess champion before even being old enough to work...In china however we have a very selective education program.Kids are not just trained slightly different to our kids but also closely monitored on their progress.As soon as one stands out for some skill it is subject to examination.Being well above average here means it is an opportunity for the kid and the parents - on paper at least.We in the western world would see it as a viscious circle though.Over the years china developed not only a better understanding of how these special kids brains actuall do their things but also how to create tests for this purpose.What looks like impossible or nonsense to most kids will trigger a scecific response and understand in those that are special.We would create something that allows parents to know early on where the kid has really good skills and what activities should be promoted.In china though the parents receive a nicer flat or some additional income while kids are send to a far away school.Again we would refer to such a school more as a boot camp.Discipline is at least on military levels, same is the punishment system.In most cases families are not reunited for many years, phone or even video calls only happen in the rare times when western TV crews are allowed a sneak peak.I just say: If a kid would see the parents often enough then it would not only know what to talk about but also be happy to talk to them - this however you won't see.It is like they talk to some distant uncle or such.What is really scary though is how these kids are trained to see their purpose and how important it is to be the best in what they do.Imagine you lost your kid at an early age and the only thing you got over the year was letters from the government saying how well it is doing and that you can be proud of it.Then it graduates and you are not even allowed to be there on that day...After that the kid is gone for good, you get a new flat and your proud kid supports you with some nice extra income.You don't get to know where it is working, what it is doing or if it might just be attending some university.By any standards these graduated kids can be seen as a great number of genius young people.Math, music, languages, science, you name it and they will have the experts aged below 20 for it.But what do they do once school is finnished and life starts?So far no reporter or family was able to figure it out.Means they don't appear in some high profile company, they don't start a successful business or teach at any public or private school.I leave it up to your imagination where thausands of kids find secret employment once they graduated....If, at least in theory we could be able to understand all these old technologies then why don't we at least try?Everyone has a goal, some desire a happy family and nice house, other need fame or just money to be happy.With that comes greed.You might have a really nice car but that does not mean you would give to some neighbour for a trip.Even if it just a nice rose garden, you might not want to share the views with anyone.This is true on all levels and we created a term for it "Need to know basis".If you just operate a press in a factory then you don't need to know when or what the next job is that comes for your press.You will know when it arrives and can check the documents attached.You don't need to know that your council is expanding and it is only seen as a courtesy to let you know on some notice board or in the local newspaper.And even our government does the same.What we do from the first days of our new baby we do on all other levels in the same way.What the baby does not need to know we won't tell or show.But we provide all the littly anklebiter needs to develop and be happy.Changing nappies, feeding, proving comfort when sick or having a nightmare.Later we teach language and other skills like walking.It goes on as you know...Humanity as a whole is like a little kid as well.If we would know all the little, dirty secrets then we would riot and go mad.Things that are of no concern are nothing we need to worry about, so we don't get to know them either.Knowing how build the latest fighter jets is seen as a thing that would give a possible enemy an advantage.Makes a lot of sense to everyone as these things might have to protect us one day.The questions that remain are:If humainty is a child, then how old are we now or when do we graduate?If there is a collection of secret and old knowledge then who owns and controls it?What would it take to force the release of all the things people actually created for a better world and not to be locked away?As funny as it might sound but one answer to all these questions would be to do nice orund trip in your Repulsine.Fly over ever single country in this world.Let their guided missle and what not chase you and once enough show then how quickly you can make a 180° turn to get behind them.So called unimportant countries might ignore you and the people only enjoy a nice show.Those powerful enough will fear you and think it was "the other side" showing their superiority.Once done with your round they all will have to realise there is a new power that is at the helm now: Knowledge and understanding.No more secrets, a repulsine for everyone who wants the plans to build one.A new world would start.Ever thought about that when wondering why all these "Aliens" we see in their ships in our skies never land to say hello ? ;)Even if they would be Aliens and not just some human pilot in some experimental craft:Shouldn't this demonstration of absolute power and control without any violence tell us something?The Repulsine need to come back to life to end all this UFO nonsense and Alien theories out there.You hear the sounds, see the ligh show and impossible abilities.And suddenly most if not all UFO sightings would have a common factor again.Just because the Repulsine is claimed to be lost and that it never actually worked despite film evidence showing the opposite does not mean there is no one using the technology.A working Repulsine available to everyone would also kill the doubt on so many other old inventors and "fringe" scientists.Science and physics would need to be redifined as would be able to find a lot of missing links.I know there is not only a lot of people out there trying to get what they can about the Repulsine but also that there are others who try to prevent this.You have a really easy time getting permission examine some old and histrically important artefact from a museum than getting just a hands on approch for what remains of the Repulsine in various places.Not even decent 3D scans will be allowed.Anything like just getting a tiny pipe cam inside is rejected with the excuse it could cause damage.If the thing is a hoax and never worked then why would it be so important to never touch or move it? ;)I recently got word that two of the remaining Repulsine "artefacts" were examined by the same group of "scientists".This happened in the late 80's and said scientists were claimed to have had acces to a collection of spare parts for the original Repulsine that was lost after the war.A private collector was also mentioned who denied all access but what he had in a secure storage facility appearently disappeared shortly after his refusal.Putting all the dots and hints together it would mean that someone in the late 80's was able to get literally everything that is left of the project in his hands.Those who claimed to have seen these scientists working on the Repulsine leftovers claim they used top notch technology to do so, including 3D scanners - and those were basically imossible to get back then for any uni out there...The laptops used were said to use touchscreens and were connected to all sorts of equippment.And they did it in almost total silence, like a group who studied a performance many times and knew exactly what do when and where without the need of many words.Professional in examining something unknown all all possible levels.I was unable to get any information on these scientist or who they worked for.But if you are one of them and readin this then I would love to hear from you!

Topic by Downunder35m   |  last reply