By Rena Marie PacellaPosted 11.22.2005 at 2:00 am 0 Comments
Dartmouth College researchers have created a robot so small that 200 of them could fit on the tip of your finger. The tiny machine crawls like an inchworm across a grid at the breakneck speed of 200 microns per second. Its goal: to fix really little things. Dartmouth engineer Bruce Donald says swarms of such devices could one day repair circuitry in computer chips.
Machines get smarter but most still won't talk to each other. There's a DIY way around that problem.
By Paul WallichPosted 12.30.2002 at 1:39 pm 0 Comments
Hummingbirds: Day after day in warm weather they would zing up to the feeder outside my office window, and every time I saw one out of the corner of my eye I thought how nice it would be to get some good pictures. Nice, but not quite worth sitting motionless behind a lens for great chunks of time to get the perfect shot.