Utah Nature has a how to on making a LED emergency light – “This LED array uses 15 LEDs housed in a 1 inch PVC connector. Each LED has its own 100 ohm resistor to limit the current and reduce the voltage. The LEDs have a 20 degree light dispersion resulting in a beam much […]
Idioticgenius made a dual chambered air cannon, 90 psi and an interchangeable barrel – “I started this project when a friend of mine put a Shrader valve on a large rectangular assembly of glued PVC, or what he called an air cannon :-. He used a ball valve and a one inch SCH 40 barrel. […]
Ted has a round up of just about all the ways of charging an iPod and/or making a DIY battery pack – Link.
Here’s how to make a solar thermal heater from a bunch of old junk, including a refrigerator grill [via] – Link.
MAKE Flickr photo pool member Kenpower posted up this wooden bicycle from China “I snapped this wooden bike on a trip to Kashgar, China. It’s a bit heavy, but really works. Note the unconventional steering control!” [via] – Link.
MAKE Flickr photo pool member Mleak made homemade human branding irons, she couldn’t find someone to test them on, so branded some paper – Link.
What is going on here? [via] – Link.
