Everything Else

How To: Build a sonic fabric reader

Sonic fabric is a textile woven from 50% cassette tape and 50% polyester thread. This video illustrates how to build a "reader" that will enable the user to listen to the sound embedded in the fabric. This allows you to play non-traditional music from clothing that's made of cassette tapes.

How To: Build a beeping electronic practical joke

Watch as Kipkay from MAKE Magazine shows you how to make something really cool for the office, with parts from RadioShack. One of the original practical jokes is the gravity activated subwoofer simulator, or better known as the Whoopee Cushion. See how to make a high tech prank... the Joke-A-Tron. This electronic prank device will beep and beep to keep your enemies on their toes.

How To: Build a small hydrogen HHO generator

Make your very own hydrogen (and oxygen) generator with a 9V battery, copper wire, and baking soda (or salt). Why? Who knows. Make sure to check your connections. For more information on this hack, including detailed, step-by-step instructions on assembling your own HHO generator, watch this how-to video.

How To: Reverse a cathode-ray picture tube

Reversing the image on a CRT computer monitor can be a great joke to play on your coworker, if you have the time to play a prank like this. If you have a lot of spare time on your hands, and love to see people miserable, then this is perfect for you. This also works with television sets.

How To: Wire a 555 timer chip for PWM

This demonstrates how to wire a 555 timer chip for Pulse Width Modulation. Items used: solderless breadboard, 555 chip, 510 ohm resistor, 100k ohm variable resistor, 1 RGB LED at 20-25ma, wires, and 9v battery. And those vertical lines are what i mean in terms of what you can see only on the camera. You can see the led light of course without the camera.

How To: Solder a resistor to an LED

A basic instruction for electronic enthusiasts. I use an RGB LED and a 510 ohm resistor as I may change from 6 to 9 volts later, but with my LEDs i could go as low as 330 ohms. I sacrifice some brightness for the sake of longer life. To choose your resistor, the value in ohms = voltage of your batteries or power supply / (as in divided by) the amperage that your LED needs to run.

How To: Make your own DIY film projector

Finding a film projector for those who still shoot film, or those who still house film can be tough. They're either sparce or extremely expensive. In this six part tutorial, learn how to make your own DIY homemade film projector for your home without shelling out tons of cash. This presentation is hosted by Dan Mikesell at Pratt Institute.

How To: Hack into encrypted computer data

Xeni visits the offices of the Electronic Frontier Foundation and speaks with Jake Appelbaum and Bill Paul, two of the authors of a security research paper that shows how your computer's memory can be tricked into revealing data you thought was safely encrypted, and out of the reach of others. Hack into encrypted computer data.

How To: Make a USB fan out of old CDs

Sweaty summer day by the computer? Office A/C broke? Watch this how-to video! You can make a simple USB fan using a compact disc, a USB cable, and a small fan motor. It's quick and easy! Don't suffer from the heat. Watch this video tutorial and with these circuitry tips, build a simple USB fan out of some old CDs.