Nereus, on the other hand, uses rechargeable lithium-ion batteries, similar to those used in laptop computers, for power and a single hairs-width fibre optic cables - borrowed from Torpedoes - for control and telemetry.

BBC: Robot sub aims for deepest ocean

While a single, bed-width cushion creates an orderly line, a pair of bolsters one for each half of the bed makes more sense for bedmates with opposing propping needs.

WSJ: Bolster Cushions Win Best Supporting Rolls

Silicon has been the favored insulator for tiny wires and switches ever since, even as successive generations of chip wires and switches have been shrunk to the width of a single wavelength of light.

FORBES: Magazine Article

All of a sudden, it seemed that there was a conceptually easy way to make a single website look good on multiple screen sizes just worry about the pixel width of the viewport.

FORBES: Move up http://i.forbesimg.com t Move down

The system is huge, with canals and navigable rivers in some instances over ten times and more the width of our largest, with barges carrying over 1000 tons in a single barge.

BBC: Calls