This is a variation of a Cartesian diver. This Cartesian diver can also demonstrate Newton’s third law of motion (action and reaction forces), as it spins its way through the water.
Steps

Cut the bottom off of a small, plastic sauce bottle. Refer to the Things You’ll Need section for details on the bottle [...]

Do you want to record live programming but you don’t want to spend hundreds of dollars on a TiVo or other DVR system? By following these instructions, you can make your own functional DVR.
Steps

Get a computer with all the bits and pieces. Any kind of computer will do, just make sure you don’t mind pulling [...]

So you want to know how to make good money on EBay? I and my friends have been very successful on EBay for over 5 years. The short of it is drop shipping is not the answer! If you sell the same things that everyone else does and get them from the same resource, then [...]

Successful internet advertising is Worth it’s Weight in Sales. And Internet advertising is fast becoming the only truly accepted advertising medium excluding radio and Television so if you want more exposure for a longer period of time than you can get through Radio and Television Ads you need to start or strengthen your internet presence [...]