Homopolar Motor

Weekend fun. Foolproof. An ingenious melange of idiocy, electrical currents, arts and crafts. Nuf said. Wonderhowto. Traversing the long tail of curiosity. Make a homopolar motor.

Homopolar motors tend to be typecast as simplistic in nature, and that's true for the most part. The bare minimum requirements are a battery, conductor, and magnetic field, but when it comes to Valentine's Day, they're nothing short of complex. At least, when it comes to the ...more

Valentine's Day is almost here, and if you're like me, you're scurrying to do something special for your mate. The standard chocolates and flowers just isn't cutting it anymore, and you can only make so many homemade cards before it becomes banal and meaningless. So, what can ...more

Is perpetual energy possible? The debate rages on. And they just keep trying. This particular device may not be perpetual, but it is far more efficient than, say a homopolar motor. The magnet in this device, the creation of our friend HowieD, propels the rotation, powering ...more

Make this Valentine's Day one to remember! Well... because you forgot. But don't worry, you can still make that heart pitter-patter for your love by saving face and getting some last minute Valentine gift ideas on the cheap. There's no reason to shop at Hallmark or buy expens ...more

Since its launch in 2001, Wikipedia has become the number one reference site on the web, used by anyone and everyone, written by anyone and everyone. With over 18 million collaboratively written articles, there's backgrounds and descriptions on practically everything—if it exi ...more

Valentine's Day is a day for love, but it also just happens to be the time when every flower shop in town hikes up their prices. Chocolates are still relatively cheap, but I never understood why you have to give the gift of bigger love handles when something more creative gets ...more