This very low frequency radio reciever kit is sold by Nasa's Inspire project - a group based around the study radio atmospheric phenomena, aka whistlers.
Via Makezine | Posted on 2008.05.16 at 11:39
The human eye cannot discern flicker with a frequency greater than roughly 30 Hz. A light turning on and off faster than this does not appear to turning on and off.
Via Instructables | Posted on 2008.05.16 at 06:10
Jenny @ CRAFT writes:
Heavy Petal has a great tutorial showing how to drill an alder log and fill it with mushroom spawn-laced wooden plugs to create a super-cool log that will eventually sprout shiitake mushrooms galore.
Via Makezine | Posted on 2008.05.13 at 22:58
How to synchronize five metronomes with two soda cans and a board. Synchronisation [via].
Via Makezine | Posted on 2008.05.12 at 12:52
Slide rules are analog mechanical calculators. They were ubiquitous among engineers and scientists from their inception, to the development of cheap transistor calculators.
Via Instructables | Posted on 2008.05.12 at 00:57
DNA, or Deoxyribonucleic acid is its full name, is the the genetic make up of an organism. The DNA reveals how an organism will function and develop and this is why it is sometimes called a persons blueprint.
Via Instructables | Posted on 2008.05.08 at 19:55
Looking for something more interesting than random web vids to pass the time on a slow workday? Consider composing some brainwaves and perhaps even sharing them with fellow heads.
Via Makezine | Posted on 2008.05.08 at 15:33
There's a Cloud Appreciation Society. Who knew? Lots of pictures, art, poetry, science, folk lure, discussion, etc. Cloud books, too (The Cloudspotter's Guide).
Via Makezine | Posted on 2008.05.08 at 14:41
This weekend at Maker Faire Instructables brought their laser cutter and was laser etching laptops, phones, and other things for free. My favorite is Alex Schlegel's fractal-etched Vaio (source image included).
Via Makezine | Posted on 2008.05.05 at 21:19
We're very excited about the release of the second in our line of DIY Science books, Illustrated Guide to Home Chemistry Experiments, by Robert Bruce Thompson.
Via Makezine | Posted on 2008.04.30 at 20:28