Making your own transistor is probably beyond the abilities of a dedicated hobbyist. However, making simple triode vacuum tubes is practical. Many hobbyists have done so over the years. In this video,
French ham-radio operator Claude Paillard shows you how.
HIs model is the WWI-era type TM of 1915. (and btw, 2007 was the 100th anniversary of electronics, since de Forest made his first vacuum tube in 1907.)
posted by metasonix
on Jan 4, 2008 -
Just FYI, it's entirely possible for a human to survive exposure to the vacuum of space
for a limited time without any permanent damage -- as long as you expel all the breath from your lungs to avoid an embolism. Horrifying scenes of sudden explosive decompression or immediate freezing are, as far as I can tell, a myth. (In other words, Mission to Mars
got it wrong, 2001
got it mostly right. But that's no surprise now, is it?)
Link via BadAstronomy. Love that site.
posted by brownpau
on Aug 23, 2001 -