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How To: 5 Great Minecraft Redstone Tips You Probably Didn't Know!

A very large aspect of minecraft is redstone. Infact, redstone is probably what keeps me playing minecraft today. Ever since the piston update of beta 1.7, redstone has taken minecraft to a whole new level, with the ability to manipulate the entire world around you with the flick of a switch. In this guide I'm going to quickly cover a few great redstone tips you probably did not know!

How To: DIY Flanagan Neurophone Lets You 'Hear' Sounds Through Your Skin

In 1958, Patrick Flanagan invented the Neurophone, a device patented in 1962 that allows radio signals to be picked up by the human nervous system. The skin is the organ that receives the signal, converting it into a modulated molecular vibration, which the brain interprets into sound. Basically, it gives one the ability to 'hear' through the skin, making it sound like the audio you're hearing is actually in your head. It's kind of like having headphones in your brain. The only problem was th...

News: Unencrypted Air Traffic Communications Allow Hackers to Track & Possibly Redirect Flights

Considering how often many of us fly on commercial airlines, the idea that a hacker could somehow interfere with the plane is a very scary thought. It doesn't help to learn that at Defcon, a researcher found that the Automatic Dependent Surveillance Broadcast (ADS-B), transmissions that planes use to communicate with airport towers are both unencrypted and unauthenticated.

How To: Fix a brake light on a Ford Focus 2003

Give me a break! Better yet, give me a working brake light on my 2003 Ford Focus! OK, if that's what you want, this video is going to show you how to get it. Follow the steps and see how to take that burned out bulb out of the car and replace it with a new, working one. This tutorial shows you how to replace a rear light on a 2003 Ford Focus. Specifically, the video shows fixing the rear brake light, but this tutorial shows how to fix any rear light (including brake/tail, reverse, and turn si...

How To: Hunt and find fallen meteorites from a meteor shower

The Geminid meteor shower 2010 is tonight, climaxing sometime between midnight and dawn Tuesday. Usually, the Geminid meteor showers in December are awesome spectacles, one of the most intense meteor showers of the year, but this year the moon will be out until after midnight, lessening visibility. But just because you can't see the meteor shower this year, doesn't mean a meteorite or two didn't sneak into Earth's atmosphere, hurdling to the ground, waiting for you to find it. So, get your me...

How To: Make hydrazine sulfate with the hypochlorite and the Ketazine process

Hydrazine sulfate has many uses, but most notably, it's been used under the trade name of Sehydrin, a treatment for anorexia, cachexia and some even think cancer. But for we DIY chemists, it's useful for something entirely different— as a substitute for the more dangerous pure liquid hydrazine in chemical reactions. NurdRage shows you how to make it via some hypochlorite and the Ketazine process.

How To: Get a free bumper case for the iPhone 4 with an App

Oh, the iPhone 4 antenna. We've heard so much about how the vile human hand has impeded your perfect designs sublime functionality. But finally Apple has come down from it's high horse, admitted it was wrong, and started distributing free signal-fixing bumper cases to all of their iPhone 4 customers via, appropriately, an App for the iPhone. This video will show you how to use the Free Case Program App to order a free case from Apple or get a refund from them if you've already bought your own...

How To: Survive in the wilderness and not wear cotton

Check out this video to learn appropriate attire for wilderness activities and how NOT to get lost in the first places. (Once lost) signal for assistance! Watch the get tips on how to build land markers to indicate direction, choose a location for shelter, build a shelter, find and purify water, and use basic land navigation (and direction determination)without a compass.

How To: Buy flowers for your girlfriend

Sure, you can go online and send the first flowers you see, but a little thought and planning will go a long way toward impressing her. Sure, you can go online and send the first flowers you see, but a little thought and planning will go a long way toward impressing her. You will need a friend or relative of the recipient. Send her favorite. If she’s ever mentioned a favorite flower, buy that. You’ll get bonus points for listening to her. If you have no clue, ask a friend or relative of hers ...

How To: Measure your body fat

One of the easiest ways to measure body fat is by using hydrostatic weighing. It is based on Archimedes' principle, the law of buoyancy. It works by calculating body fat from measuring the amount of displaced water after a person has been immersed under water. Since muscle is denser than body fat, a person who has more muscle will displace less water than a person of the same weight with more body fat. This test is usually performed for a couple times for averaging accuracy. If the test is do...

How To: Record audio in Ableton

In this video, we learn how to record audio in Ableton. When you are ready to record audio, you will need to first make sure everything is set up correctly. Check the audio input and output so you can choose the sources and configure them so they are correct. You will want to choose the level of input you have and find where the record and on buttons are. There will be a signal of the input when you are recording so you can see what the level of noise is while you are recording. As you monito...

How To: Make an infrared heart sensor

This video shows how to create an infrared heart sensor using an Arduino controller, a couple of resistors, and an infrared light emitter and detector. This device will be used on the subject's finger, detecting the amount of blood which is flowing through the subject's finger. The amount of oxygenation of the blood is shown in the finger, which will cause the infrared light to reflect off the skin and to the transmitter which is close by. The fluctuations of oxygenation are picked up by the ...

How To: Fix Your iPhone 4 Antenna with Scotch Tape

The iPhone 4 is one of the most divisive pieces of consumer electronics ever released. Its defective antenna has ruffled the feathers of even the most diehard Apple enthusiasts. This video will show you how to fix the antennagate issue using only some Scotch tape, which when applied to the proper place, will keep the antenna from grounding itself on the metal piece below, which is what causes the phone to lose signal when you hold it.

How To: Fill a handheld butane torch with fuel

Jill Erickson of Art Jewelry Magazine demonstrates how to fill a handheld butane torch with fuel. You can purchase butane fuel at a grocery store or at a hardware store. First, uncap the butane fuel can and hold your butane torch upside down. There will be a small opening valve where you will vertically insert the top of the butane fuel can nozzle. Make sure the components are aligned straight up and down. Then, use direct downward pressure to get the fuel into the torch. The fuel can will hi...