Make a Simplest Pen Gun

Not much work goes into setting up this pen prank. You will however need to get some party snaps and you will be loading the pen with a one or two. The end result is very funny and you can keep pulling off this prank over and over again as long as you don't run out of party s ...more

Video: . Potato Air Pen Gun an simple homemade toy airgun made just from a ball pen or water pipe, a chopstick, some potato.

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

In every nerd, there is a 12-year-old boy just dying to get out. This week, we bring you the ultimate in indulging your inner kid. Make a penis card emblem in Call of Duty: Black Ops The ability to make your own player card emblems in Call of Duty: Black Ops has led to a bur ...more

Halloween is coming up, so many of you may have a need or desire to carve a pumpkin and turn it into a Jack O' Lantern. This week we are going to explore carving our pumpkins into interesting geometric shapes. In this post, we will carve the pumpkins into spherical versions of ...more

I love this project. It involves fire, projectiles, electricity, and is easy to put together from commonly available parts. This mini cannon fires airsoft pellets, is fueled by alcohol, and is made almost entirely from parts found in a standard BBQ lighter. The total cost is u ...more

There are loads of reasons for somebody to want to recover a Windows password, and there are lots of different ways of doing it. My favorite of all of these ways is to use a piece of software called Ophcrack because: The free tables are suitable for almost all uses (I've neve ...more

A British prisoner was recently caught with a tattoo gun rigged from a Sony Playstation. The crafty D.I.Y.er broke down the Playstation and attached the console motor to a finely sharpened ballpoint pen. The Sun reports: "A source said: 'It was a truly bizarre piece of DIY, ...more

"Dead or alive, you're coming with me!" That iconic quote from the 1987 movie RoboCop was repeated by kids like me for years. The 2014 reboot introduced the baddest robot-cop on the planet to new audiences worldwide. While it didn't live up to the amazingly high expectations s ...more

The S Pen in the Galaxy Note 10 and 10+ has improved to make remote usage even easier. Controlling your phone with just the stylus is no longer a party trick, as you can now move around and take actions in both first-party and third-party apps. One of the best examples of this ...more

Update: After playing around with our new iPhone 6 and 6 Plus over the last couple weeks, it occurred to me to see if my DIY stylus would work with these new devices. I'm happy to report that it does, just as expected. Now, the level of functionality you'll get out of it is d ...more

Remember the arcades? Were you saddened when they closed up one by one, leaving no outlet to actually go out and socialize while you played video games? With all the home consoles and internet connectivity, gaming has evolved, but the social factor has been eliminated. Sure we ...more

Welcome to Minecraft World! Check out our advanced tutorials and come play on our free server. No self-respecting Minecraft house is complete without a state of the art automatic cobblestone generator. But what does the average Minecrafter need with a bunch of cobblestone? To ...more

Traditional Aboriginal didgeridoos are made from trees that have been hollowed out by termites. Finishing work to smooth out surfaces and decorate the didgeridoo would soon follow. Lucky for you, you don't have to spend lots of money or find a hollowed out tree to create a did ...more

Who doesn't love Star Wars? No one, that's who. And if you love Stars Wars, logic would follow that you like lightsabers, so central are they to the tale's mythology. It's part sword, part laser, and makes a sound like a humming motor have multigasms. If I saw one in real life ...more

I'm back with the third part to my laser weapon series (see part one and two), and I'll be explaining the function, application, and potential of semiconductor lasers, aka laser diodes. Surely, most of you have used a laser pointer at some point. Whether purchased at a dollar ...more

In mathematics, a knot is a closed circle in a three-dimensional space that crosses itself multiple times. Since it is closed, it has no ends to tie, meaning you can't actually create such a knot. However, if you tie the ends together after you create a knot in the standard wa ...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

This is the third part of my electromagnetic pulse series (see Part One and Part Two). By now, I've covered the hardware and general concept of electromagnetic pulse generators, but how exactly do they disable electronics? How can an invisible field of energy have such a catas ...more

The Stun-Gun In this article, I'll show you how to make a small, weaponized highlighter. Before I get into how to built this device, let me warn you. This device is harmful! When used, it can cause burns and/or serious muscle spasms. The voltage is potentially deadly! DO NOT ...more

Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The trig ...more

Snapseed is a highly regarded and award-winning photo-editing app for iOS devices. Originating out of image manipulation specialist Nik Software in San Diego, Snapseed is Apple’s iPad App of the Year and, after using it for the purposes of this review, I believe it points to t ...more

Welcome to Math Craft World! This community is dedicated to the exploration of mathematically inspired art and architecture through projects, community submissions, and inspirational posts related to the topic at hand. Every week, there will be approximately four posts accordi ...more

Deep in their heart of hearts, most Americans dream of having their car festooned with missile launchers and machine guns. Anyone who cuts them off or looks at them funny in traffic could be dispensed with quick and extreme justice, leaving a real-life James Bond and his passe ...more

Fractals and stars are two of the most beautiful and complicated-looking classes of geometric objects out there. We're going to explore these objects and how to carve them on a pumpkin. Unlike the last one on carving polyhedral pumpkins, where we used the entire pumpkin to car ...more

Many people get so discouraged by their failures with redstone that they give up using it entirely, or never progress beyond using simple switches. However, by incorporating logic gates into your redstone designs, the applications are nearly limitless. The ability to add multi ...more

I have an absolutely wonderful time making projects and writing articles for all of you mad scientists! Today, I will bring you behind the scenes for a look at the workbench, tools, and software that make the Mad Science World possible. Above is my beautiful workbench! My who ...more

This week, at its developer's conference, Samsung took the wraps off a new tool from Wacom that bestows the S-Pen with AR powers, as well as its own entry to the AR cloud market called Project Whare. But while Samsung is just starting to float its AR cloud to developers, Nian ...more

Acetone-based nail polish remover is great for removing nail polish, and it's also great for some DIY uses around the home. From eliminating scratches to fixing the consistency of correction fluid, its uses are varied but all effective. With nail polish remover, you can also c ...more

Back in 2007, YouTube user HouseholdHacker posted a parody video on how to make a high-def speaker for under a buck. MythBusters took on the challenge and busted it. Although that particular method doesn't seem to work, that doesn't mean you can't make your own speaker for le ...more

Contrary to popular belief, augmented reality apps have been available for a while now. I remember using the Layar app (still available for iOS and Android) to explore nearby businesses and landmarks with varying success via an early-generation Android handset. It would be ha ...more

My first encounter with a phablet was late last year with the AT&T version of the Samsung Galaxy Note 2, having never touched or even seen its highly-acclaimed and pioneering predecessor. Initially, I was a bit overwhelmed by the enormous screen and taken aback by the dated st ...more