The prize this week is 20 of our popular LED mounting boards. These LED mounting adapter boards let you solder to a small circuit board instead of soldering directly to LED and resistor leads. This contest will run for one week (Dec 6 – Dec 11, 2008) . Ending time is based on central standard time. To enter, identify the item pictured above and give an example of what can
Robin Massink from the Netherlands has built a cool Magnetic Levitation Light Bulb it uses Wireless Energy Transfer to power the bulb. It is always weird to see something being powered with no wires! "I used this globe (http://www.thinkgeek.com/geektoys/science/98b8/) for the levitating part. It consists of 2 permanent magnets, and 2 electromagnets, coupled with a hall sensor to keep a third magnet (inside the globe) floating. I mounted a
I love the look of the old rotary phones. This hack turns your old phone into a cool iPhone docking station. With 16 Watts of speakers hidden in the device there is sure to be some cool sounds coming from this covert device. "Rotary Dial 1940’s Phone fitted with an iPhone speaker dock. One speaker behind the dial (10w) on the front of the phone and two speakers in
I have seen a few articles about using these Fisher & Paykel Smart Drive washing machine motors as a starting point to make a wind generator. Once modified it looks to be a great inexpensive means to make electricity. Randy’s Workshop has some good documentation on how to modify these motors to be used as a generator. "This Fisher & Paykel Smart Drive Permanent Magnet motor is comprised of
