Lemon-powered LEDs
A lemon battery powers an LED. From the Make: Flickr Pool. Lemon Battery More: The elder lemon joule thief Lemon LED Tester
Science
DIY science is the perfect way to use your creative skills and learn something new. With the right supplies, some determination, and a curious mind, you can create amazing experiments that open up a whole world of possibilities. At home-made laboratories or tech workshops, makers from all backgrounds can explore new ideas by finding ways to study their environment in novel ways – allowing them to make breathtaking discoveries!
Halloween science grossology
Whitaker Center for Science and the Arts had a special Grossology exhibit a while back. They still have a great related site up, with Foul Facts, Eeww Experiments, and Disgusting Downloads. I love the instructions for Edible Poop Cookies: “Shape the dough into turds. You can make flattened cow pies or little kitty turds.” Ew, […]
Halloween raw materials – Nasco Science
Nasco has tons of cool stuff, both fun and icky, from paper masks to preserved pig hearts. I think the range of items they carry is kind of surreal. Lots of disgusting decorating potential here!
Escape from Berkeley
Scott Beale writes, on Laughing Squid: Escape From Berkeley (By Any Non-Petroleum Means Necessary) is a road rally of alternatively powered vehicles traveling from Berkeley to Las Vegas on October 10th through 13th. A panel of judges will be presenting awards for both artistic and technical achievements. The rally is being organized by Jim Mason […]
HOW TO – USB Geiger counter
Sylvain sent over these instructions for buiding a USB-able radiation detector – The geiger counter is a pretty simple device to detect radiations. Many forms of radiations from radio elements (alpha, beta, gamma) can be detected but it is more sensitive to beta and gamma radiations. The Geiger-Muller tube is a simple device, it’s a […]
Sail across the Pacific ocean on discarded water bottles
The “Plastiki Expedition” by environmentalist David de Rothschild is attempt to finally put all of the discarded plastic water bottles we use daily to good use. His project is to build a 60-foot boat made entirely out of recycled materials such as the bottles and then sail it across the entire Pacific Ocean! From his […]
Salt water Leyden jar
Warning: High Voltage Ahead. This Instructable shows you how to make an old-school high voltage capacitor, a Leyden jar, out of a jar of salt water. Even though this shows you how to make a small-jar capacitor, so the voltage is probably not lethal, it’ll still pack a wallop, so not something to be undertaken […]
