Make an Electrical Shock Device

Nowadays, there's a mobile app for just about everything—but that doesn't mean it should be on your smartphone. Not diggin' what SPB Shell 3D did to your home screen? Accidentally purchased Angry Sperms instead of Angry Birds? Want to try out the upcoming Smuggle Truck without ...more

There is nothing more annoying than a greedy roommate. It's absolutely infuriating to wake up and find the cookies your mother just made for you gone without a trace. Your favorite drink is empty and the homemade meal you worked so hard on the night before is nowhere to be fou ...more

Welcome to Microwave Energy—the next part of my Making Electromagnetic Weapons series. For the Electromagnetic Pulse Generator, check out the last three articles (One, Two and Three). I'm sure almost all of you have used a microwave at some point in your lives. As a child, I ...more

My father recently suffered a stroke. Now in Neuro Rehab at Cedars Sinai, he is enduring daily physical therapy, recreational therapy and occupational therapy sessions to help improve his balance, mobility and fine motor skills. I was initially worried about how I could incorp ...more

In this article, I'll show you how to build a simplistic circuit to generate negative ions. Negative ions have been known to contribute to fresher air, happier mood, and general health benefits. However, they also look amazing in the dark (check out the photos below, purple pl ...more

In this article, I'll show you how to build a coil gun. A coil gun is a device that fires magnetic projectiles at high velocities, using electricity. Coil guns require no explosive propellant, therefor can be fired an infinite amount of time, providing that there is ammunition ...more

Beauty is a fine line between art and science for Pe Lang, a Swiss sculptor living and working in both Berlin and Zurich. The autodidact artist specializes in graceful, hand-built kinetic sculptures made of magnetic, electrical and mechanical devices, all of which are elegant ...more

INTRODUCTION The everyday PC user doesn't think much about its PC and problems that can cause critical damage to their data or other stuffs stored on Hard drive and other electronic parts until the problem actually occurs. Once a failure happens, the repairs can be costly and ...more

George Yoshitake is one of the remaining living cameramen to have photographed the nuclear bomb. His documentation of the military detonation of hundreds of atom bombs from 1956 to 1962 reveals the truly chilling effect of the weapon. Below, images and explanatory captions via ...more

WonderHowTo is made up of niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects. Thanks to all of our active moderators and ...more

One of the creepiest musical instruments ever is undoubtedly the theremin, a device originating from the early 20s that emits eerie sounds with a just a wave of the hand. If you've seen the original movie The Day the Earth Stood Still, you know what I mean—freakishly creepy. P ...more

Solar panels are an amazing invention. Catching energy from the Sun before it even enters Earth's food chain, photovoltaics are like an all-natural nuclear power plant. Unfortunately, the constituted parts of a solar panel are rare, valuable, and subject to the coercive forces ...more

Our hacked Kinect series has demonstrated amply how the Kinect is changing the worlds of business, art, medicine and robotics. But where does it go from here? That will be determined by the thousands of dedicated DIYers out there doing work like you've seen here over the last ...more

Whenever we make a homemade circuit, we use what are called through-hole components. Any components with long metal leads is a through-hole component. They are great for soldering to, but it's tough to fit enough through-hole resistors and capacitors into a smartphone. To get ...more

Fans of Doctor Who know that the sonic screwdriver is the ultimate tool. It can unlock doors, turn on lights, detect life forms, solder wires, and sabotage weapons. Presumably, the sonic screwdriver creates sonic vibrations to achieve whatever the doctor wants by vibrating th ...more

It turns out that the popularity of soft circuit electronics has leaked out of the interwebs and into the hands of the U.S. military. Soft circuit electronics allow you to literally sew electronics circuits into fabric using flexible conductive thread instead of wire. Soft cir ...more

In my second article of the laser weapon series (see the first part here on CO2 lasers), I'll be expanding on the potential of pulsed lasers. I'm sure most everyone has seen those green and red laser pulses on Star Wars. Theoretically, those lasers could be built using a conc ...more

In this series, I'll be exploring electromagnetic weapons, how to build them, their function and application to the future, and the amazing possibilities electromagnetism has to offer. First, the electromagnetic pulse generator, or EMP. You've probably heard of these before, a ...more

Nikola Tesla In my opinion, one of the most neglected inventors of all time. The names Edison and Marconi come to mind as familiar, but Tesla? Most think of a car. Few know that Tesla is responsible for alternating current, florescent lights, radar, remote control, generators ...more

Computer viruses are terrifying. They are undetectable, dangerous, and operate constantly right under your nose. For the average computer user, there are only a few repair options. You could buy expensive antivirus software that causes more problems than it fixes, you can wipe ...more

WonderHowTo is made up of niche communities called Worlds. If you've yet to join one (or create your own), get a taste below of what's going on in the community. Check in every Wednesday for a roundup of new activities and projects. Thanks to all of our active moderators and ...more

QI and ZA. QI n pl. -S the vital force that in Chinese thought is inherent in all things ZA n pl. -S a pizza For over a decade, these words have been used in SCRABBLE play, but not in the US or Canada. It wasn't until their addition in the Official SCRABBLE Players Dictionar ...more

The Funny Thing About Dying - A Story of Coping With Loss I remember once as a kid someone fake-punched me in the nose. This older kid hauled off with his fist and pulled the punch just shy of ruining some great and prominent Italian cartilage in the making. Somehow I stood ...more

Samsung's new line of Galaxy S20 flagships have a water resistance rating of IP68. This means you don't have to worry as much about getting the phones wet, but there's a limit to that. The IEC standard 60529 outlines a series of tests performed by the National Electrical Manu ...more

Samsung's not one to make drastic changes to what already works. They've continued on with the IP68 rating under IEC 60529 first given to the Galaxy S8 all the way to the the Galaxy Note 10. If you're a little confused as to what this rating means, don't worry, it's actually p ...more

When it comes to melee combat, two swords can definitely be better than one. Throw a stun gun on top of that and you've got a seriously terrifying weapon. That's exactly what YouTuber jonathanj9969 did with his homemade double-bladed stun sword. Video: . The stun sword is basi ...more

Welcome back, my greenhorn hackers! Sometimes, we don't have a specific target in mind, but rather we are simply looking for vulnerable and easy-to-hack targets anywhere on the planet. Wouldn't be great if we had a search engine like Google that could help us find these targe ...more

If you bought an iPhone or iPad equipped with USB-C but didn't max out the local storage, there are some great external storage solutions beyond iCloud and other cloud storage services. And now that the iPhone lineup comes with USB-C ports, you have better-performing external ...more

Within the coming months, software startup Neurable plans to introduce the next paradigm in virtual and augmented reality: the brain–computer interface (BCI). A BCI interprets brain signals so that devices can understand user intention from predefined selections. Relying on s ...more

If you've found your speakers to be lacking in the visuals department, this is just the mod for you. Using 3" PVC, you can turn your speakers into light-up glow rods that pulse to the beat of your music. You'll need some electrical skills and experience soldering to get this o ...more

The rumors have been circulating for months, but now there's a source attached to the notion that Magic Leap is looking to sell itself off after a rough couple of years following the launch of its Magic Leap 1 augmented reality device. The first rumbling of trouble came back ...more

In the perpetual search for a renewable and convenient energy source, our bacterial friends have once again stolen the limelight. Since bacteria multiply so fast, they are the ultimate renewable resource. And since they are living organisms, their metabolism produces by-produ ...more

When it comes to busted smartphones, liquid damage ranks right up there with shattered screens as one of the most common issues owners have to deal with—as well as the most embarrassing. Thankfully, though, with the rise of waterproof phones such as the Samsung Galaxy S7 and e ...more

The new HTC One M8 has only been out for a few hours, but it's apparent that some people had their hands on the device before the announcement. And well, one them decided to drop the thing in water. Reddit member BD7349 posted his water test for all to see, and I've gotta say ...more

Will the predicted apocalyptic date—December 21st, 2012—really be the end of the world? In this ongoing five-part series, we examine what would happen if zombies, nuclear weapons, cyber wars, earthquakes, or aliens actually destroyed our planet—and how you might survive. End ...more

Smartphones and tablets are great for watching movies and videos while you're out, but at home, the screen is just too tiny. There are quite a few projectors on the market that work with mobile devices, but they can get pricey. The good news is that it's pretty simple to hack ...more

With their first attempt at the mobile market, Razer introduced a device that looks at the smartphone differently. Instead of focusing on minimal bezels or an amazing camera, Razer decided to make a phone for gamers. So how could Razer target the growing mobile gaming market, ...more

The headsets of tomorrow offer some amazing possibilities in both gaming and work, but what we've seen so far only begins to scratch the surface. The US Navy saw the potential to use augmented reality in a helmet to provide divers with an incredible amount of information we ha ...more

Well folks, the dream is coming to life. While we still may be a ways away from mind control, the team over at Thalmic Labs has created the Myo, and with it, the power of the Force comes to motion control, so long as you use it wisely. Video: . Myo is a gesture-control arm ban ...more

I don't like paying for repairs, and I don't like purchasing extended warranties. When one of my gadgets break, I perform emergency surgery and try and fix it myself. It doesn't always go well, but I've managed to resuscitate a few iPhones, an HDTV, an Android tablet, multiple ...more

Your brand new iPhone SE packs the latest A13 Bionic chip into the form factor of the iPhone 8. With all that modern tech, you'd expect your iPhone to be unstoppable. That said, no smartphone is perfect, and sometimes, the iPhone SE will give you trouble. If your device is fro ...more

As far as overall security updates are concerned, we all know that iOS reigns supreme over Android. But just how bad do Android devices fare against Apple in general? A recent report will have you second guessing some companies the next time you're in the market for a handset. ...more

Veering from common practice, XDA commenter, "the_commenter", discovered a changelog for the upcoming version of Android 4.4.3 tucked away on Google's servers. While the 5,000+ lines of text are still being digested, a couple of interesting nuggets of information have already ...more

The landscape of the augmented reality space is broad, diverse, and constantly shifting, perhaps more so than any other vertical in technology. At the same time, major players are attempting to standardize various hardware designs and delivery methods, while still others are r ...more

While the consensus among some in the augmented reality community is that the Microsoft HoloLens is the best device available at present, it also remains the most cost-prohibitive option, with the development edition costing $3,000. To give customers another option to work wi ...more

It's fitting that students at the University of Washington can catch a glimpse of the new, 135,000 square-foot computer science building in augmented reality before construction is completed. The university's contractor for the project, Mortenson Construction, has built a mob ...more

Damn right, you don't just eat 'em. When you're done with your next Pringles can, you can turn it into a kaleidoscope, a pinhole camera, and even a solar hot dog cooker. But Instructables user TheSpodShed may have just created the most awesome way to upcycle empty Pringles ca ...more

Inductive charging is already a reality on popular smartphones like the Samsung Galaxy S III and Google Nexus 4, and Apple has recently published a patent that would make inductive chargers a reality for the iPhone. There are also several phones that have the capability for wi ...more

The new 007 film, Skyfall, comes out this Friday, and dreams of becoming a super-spy have taken over my mind. Only I can't afford any of James Bond's awesome gadgetry or amazing cars—and you probably can't either. But that doesn't mean you can't fake it a little by adding a t ...more

While Instagram users can attach links to images, they can only do so in stories, and only if they meet the special requirements that most users cannot obtain. Snapchat, on the other hand, lets anyone add a link, and it can be done in regular snaps and in your story. This feat ...more

A wave of shock and anger swept across the country after Edward Snowden released private documents recounting the U.S. government's secretive mass surveillance programs. Although some of the fear was unwarranted (they don't read your emails or listen to your calls), many scram ...more

Nikola Tesla is one of the most tragic figures in the history of science, a history that is practically filled to the brim with tragic figures. Francis Bacon, a 16th century philosopher and scientist, caught pneumonia and died because he was trying to stuff snow into a dead ch ...more

There's a lot of talk about 5G these days. You might even think your iPhone is 5G-ready, since, well, it says so right in the status bar. 5G E, right? Sorry to burst your bubble, but no iPhone is capable of connecting to 5G networks yet, no matter how much you pay for that 11 ...more