Researchers then used ultrasound devices to measure the thickness of the arteries in their neck and leg.

FORBES: A Backlash Against Vytorin?

Everybody knows how Lipitor works, Hazlett argued, so the problem must be the study, which used a technique called carotid intima media thickness (CIMT) to measure the thickness of the walls of an artery in the neck.

FORBES: Magazine Article

The balance spring is etched out of a thin silicon wafer using a photolithographic technique, similar to that used for microelectronic chips, so its exact shape and thickness can be more carefully controlled than with metal.

ECONOMIST: A luxury watchmaker is putting silicon in its timepieces

Satellites have long been used to track ice extent (area), but calculating the thickness of the marine floes requires the overflying spacecraft to gauge the difference between the top of the ice surface and the top of the water - a relatively simple calculation then gives the overall volume.

BBC: Launch success for Esa's Cryosat-2 ice mission