An experiment to observe the sense output whilst flipping the state of a single bit in an early Univac III magnetic core memory plane.
http://www.holmea.demon.co.uk/Core/Flipper.htm
A negative ion generator is a device that emits a stream of negative ions into the air. The result is a cleaner fresher air due to the electrostatic settling of dust and the supposedly invigorating effect of breathing negative ions which are apparently found in abundance in the vicinity of waterfalls and mountain tops. In addition an ioniser can reduce airborne odours due to trace quantities of ozone produced at the tip of the ionisation needles.
http://www.emanator.demon.co.uk/bigclive/ioniser.htm
I bought a genesis game console with a few games. I got tired of playing Sonic and MicroMachines so I decided to build a reprogrammable cartridge. Many things can be done with such a cartridge
http://www.raphnet.net/electronique/genesis_cart/genesis_cart_en.php
The Juicer is a wirelessly controlled, programmable juice maker which will mix each ingredient of a recipe to the exact proportions every time.
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2005/vhl4/juicer_webpage/index.htm
Build your own digital Anemometer by using a bike speedometer and other inexpensive parts.
http://www.instructables.com/id/ED6A4D8HY3EP286718/