At the same time, the connections of the spiral to the rest of the movement are far more accurate, also enhancing performance, and eliminating the need for fiddly adjustments.

ECONOMIST: A luxury watchmaker is putting silicon in its timepieces

The upward movement was enjoyed by the rest of the industry on a broadly positive day for U.S. stocks, as Time Warner gained 4.5%, Walt Disney 3.1%, CBS 5.1% and Viacom 3%.

FORBES

When its owner wants to walk, it sends out what is called a tonic signal ordering forward movement and the spine does the rest.

ECONOMIST: An experiment on rats brings hope to the paralysed