News tagged with pyramids

World's smallest periscopes

(PhysOrg.com) -- A team of Vanderbilt scientists have invented the world's smallest version of the periscope and are using it to look at cells and other micro-organisms from several sides at once.

Feb 25, 2009 3.7 / 5 (3) 1

On the edge of friction

(PhysOrg.com) -- The problem exists on both a large and a small scale, and it even bothered the ancient Egyptians. However, although physicists have long had a good understanding of friction in things like ...

Dec 20, 2011 4.7 / 5 (6) 3 | with audio podcast