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How To: Make an Exploding Ashtray Prank for April Fool's Day

The exploding ashtray prank was once fairly commonplace long before the Internet was born. Using flash cotton to create a startling explosion, this prank is certainly effective at getting a reaction. Flash cotton is a staple of many magic acts; used for its ability to create a brilliant flash of fire without causing a burn to the skin.

10th Time's the Charm: Success and Failures of Making a Jam Jar Jet Engine

I finally got around to trying out this jam jar jet project. The most successful and longest lasting pulse was somehow the only one I did not record. You can imagine how frustrating that probably was, though my tenth and final attempt was nearly as satisfying. But even the failures were fun to watch, especially the blue flame floating, almost dancing, around the jar. I especially liked the small foghorn sound that my first failed attempt produced.

News: Watch NASA's Tracer Rockets Light Up the Sky with Cloud Trails

This morning, NASA launched the five suborbital sounding rockets from Virginia as part of ATREX (Anomalous Transport Rocket Experiment). Each rocket was launched 80 seconds apart and released chemical tracers that created "milky, white clouds at the edge of space." Now, I've seen plenty of bullet tracers in my life, but these are far more poetic. Take a look at the time-lapse video and see for yourself. Why shoot these tracer rockets? To help scientists "better understand the process responsi...

Arduino Air Force: DIY Robotic Cardboard Quadcopters

You're hellbent on taking over the world, but one race of robotic minions isn't enough for you. With your hexapod robots acting as your ground forces, it's only natural to take to the skies. These cardboard quadcopters are the perfect air force for you. Combined, you are mere steps away from starting your evil takeover. Now you just need some water bots. The cardboard flying quadcopters are built around the MultiWii platform with the twin power of Processing and Arduino, so they are actually ...

Dueling Plasma: Singing Tesla Coils' Shocking Battle to the Death

Tesla coils are electrically satisfying in so many ways. But what happens when a guitar-playing city coil has a run-in with a backwoods, banjo-playing, inbred coil? A musical duel to the death! Watch these two Tesla coils battle it out as they play Dueling Banjos. Shocking. Just shocking. Okay, so it's no secret that Tesla coils can create a wonderful light show of electricity, but by modulating the frequency, they quickly turn into powerful singing Tesla coils—the key to any electromaniac's ...

Glass Cutters Are for Tools: How to Dissolve Glass Using Sodium Hydroxide

Glass is one of the least reactive substances known to chemistry. It is the standard container material for almost all lab chemicals because it's so inert. But there are a couple of substances that have strong reactions with glass. Sodium hydroxide, aka solid drain cleaner or lye, can easily be stored in glass as a solid, but when molten, it reacts violently with glass and can actually dissolve it away! So, the next time you clog up your drains with broken glass beakers and flasks, rest assur...

How To: Hack Together an Accelerometer-Aware Mobile Website by Accessing Motion Sensors in JavaScript

Christian Cantrell, Adobe's Air Product Manager and Evangelist, has released a video to demo websites that take advantage of the motion sensors in a mobile phone, tablet, or laptop via JavaScript. Now, let's take a look through the code and break down the core pieces that you'll need in order to build your own sites that can determine the 2-axis tilt, 3-axis gyroscope, and compass direction of the mobile device it's being displayed on.

News: Fiber Laser Scores Aperture Logo in Steel While Playing Portal's "Still Alive" Theme Song

Most of your who visit Fear of Lightning are probably well familiar with laser weaponry, thanks to Christopher's three-part series covering carbon dioxide, flashlamp, and semiconductor lasers. Another type of laser currently being developed as a weapon is the fiber laser, which is compact and efficient, but much weaker than a chemical laser. Fiber lasers are more commonly used in laser cutting and marking, telecommunications, spectroscopy, and of course... music.

Creating Killer Cacti: How to Make a Cactus Farm in Minecraft

How underrated are cacti in Minecraft? Cactuses can be used for so many wonderful things, so why not have a great way to farm them? Cactus is known for its use in making "cactus green," which is a colored dye that can aid in making cyan wool, lime green wool, and green wool. Cacti can also be a great defense mechanism against mobs and other players and can help make death traps even more lethal.

KONY 2012: Propaganda At It's Finest?

The most recent viral video on YouTube is just that. A viral video. After seeing all the hype and 'support' that the 'movement' is getting, I want to tell you that this is a misleading video and somewhat of a propaganda campaign. These are strong accusations against such a 'humanitarian' cause, but I'm here to show you why.

News: US Service Member Kills Atleast 16 Afghan Civilians

Afghan officials and witnesses say a U.S. service member walked off his base and shot and killed at least 16 Afghan civilians in Kandahar province Sunday. The shooting is the latest in a string of incidents to further strain Washington and Kabul’s already tense relationship. Afghan President Hamid Karzai called Sunday’s shooting unforgivable. He demanded an explanation from the United States for what he called “intentional killings.” Karzai said in a statement that nine of the victims were ch...

News: No Transparency, No Trust

Earlier in the week, Obama’s attorney general stated something that is quite alarming. “In this hour of danger, we simply cannot afford to wait until deadly plans are carried out, and we will not,” Eric Holder said during a speech at Northwestern University’s law school in Chicago. It's a very ambiguous statement. Why do people talk like this? Why can't they just talk straight to the point? Well, most of the time it's to hide something. Take a look at this video: What do you think of that! Th...