The backyard rail gunfires the projectile with 56 480-joule capacitors, with a burst of carbon dioxide to help it along. To give you some perspective, one joule is the amount of energy needed to lift a 100 gram (0.2 pound) apple vertically through one meter of air they’re using over 25,000 joules.
The railgun is the fruit of two years’ work, some of which you can check out onImgur.
Also, in case it wasnt obvious, dont try this at home.
When it comes to awesome electronics, most of us simply wait for companies to create cool things and then decide whether or not a gadget is worth our hard earned cash. But thanks to open source platforms like Arduino, anyone can build some of the coolest gizmos from scratch. These are 10 of the most amazing homemade toys, appliances and gadgets that you can build in your own living room.
Project homepage: DIY Drones
The military has thrust the idea of robotic aerial drones into the public consciousness, so it shouldn’t be surprising that many home gadget gurus want one of its very own. The ArduPilot is the perfect kit for such a project, and for a relatively meager price you can turn virtually any radio-controlled plane into a surveillance tool — or simply shoot some amazing high-altitude video.
2. Electronic Pong Game
Project homepage: Arduino Pong
Pong is one of the most beloved and classic video games of all time, but chances are you’ve never built your own version. Arduino Pong lets you create a custom version of Pong which you can plug right into your television and enjoy for yourself. The game is very basic, but if you’ve ever played Pong, you know exactly what to expect. Now if only we could build our own version of Super Mario Bros…
3. Mind-Controlled Nerf Gun
Project homepage: Mindbullets
Everyone can agree than Nerf guns are awesome. But what could possibly make them even more awesome? Being able to fire the brightly-colored darts and bullets just by thinking it. The Mindbullets project lets you do exactly that, and it’s just as amazing as it sounds. By combining the brainwave-sensing NeuroSky headset and some Arduino hardware, your run of the mill Nerf gun will be turned into an unstoppable, foam-dart-shooting machine.
4. Tweeting Houseplant
Project homepage: Botanicalls
Ever wish you could actively communicate with your houseplants? This Arduino kit by Botanicalls not only lets your plants speak to you, but also to the world at large. Using probes that can sense the level of moisture within a plant’s pot, the hardware can send tweets letting you know the plant needs watering. If the plant gets particularly dry, a more urgent tweet will also be sent. It can even sense if the plant is being overwatered, ensuring that you’re keeping your green thumb in check.
5. Turn-Signal Biking Jacket
Project homepage: Instructables
Biking is a great way to get some exercise, not to mention flex your fuel-saving muscles, but safety is always a concern when you’re sharing the road with cars and trucks. This amazing Arduino-powered biking jacket lets you level the playing field when you’re on the open road by embedding working turn signals right on your back. With a mobile power supply and two buttons to control the bright arrows on your back, you’ll never have to worry about letting those on the road know where you’re going.
6. Arduino Air Guitar
Project homepage: Instructables
We’ve all played a little air guitar in our times, but regardless of how cool we might think we look rocking out to our invisible instrument, we’ve never heard a single note played as a result. That all changes with the AIRduino guitar, a virtual guitar gadget that uses sensors on each of your fingers to play actual music as you strum the invisible strings. It’s a ridiculous cool idea, and it appears to work fantastically. We only hope you don’t actually need to know how to play a real guitar in order to create some excellent tunes.
This article originally published at Tecca
When The Matrix debuted back in 1999, the stunning visuals–commonly referred to as ‘bullet time‘ special effects–blew the world away. Their state of the art camera techniques have since been copied, parodied, and spoofed countless times by Hollywood.
But for years, only the big studios with even bigger budgets could create such dazzling images. Now that technology is only accelerating at ever greater speeds, small time artists and producers can replicate the effects.
Just take Marc Donahue, who created stunning ‘bullet time’ visuals with his homemade array of GoPro cameras. The shutter speeds aren’t perfectly synced, but that only results in even more interesting visuals.
Billy Browne has gone viral with an adorably interesting video about his cat and some handy do-it-yourself work. Rufus fell ill and required ear drops he hated. After the drops were done, Billy decided to ‘make it up to him’ by building him an epic tower maze out of cardboard boxes.
Rufus loves boxes, and when it was complete, claimed his tower. The Rufus Tower.