In one memorable week last year, the hot water heater, the pool pump and the mechanical arm on the gate in their driveway all went on the fritz.

FORBES: Magazine Article

The Department of Defense does not have a submersible that can reach 5, 000 feet with the mechanical arm power to do the types of things that BP and other oil companies buy equipment to do.

WHITEHOUSE: Press Briefing

Held in a scoop on the rover's mechanical arm, the tablespoon of pulverized gray rock offers planetary scientists their first sample from the planet's interior, where it may have been sheltered from the harsh surface chemistry and ultra-violet radiation.

WSJ: Rover on Mars Extracts First Rock-Core Sample

This machine, known as the Turk because of its exotic costume, could play chess, moving the pieces with a mechanical arm and defeating even the best human players.

ECONOMIST: Computers and chess

Inside the hot and dusty Bolshoi Ice Palace, workmen atop a mechanical arm installed wiring in a scoreboard above the hockey rink.

WSJ: Menu

It had a movable mechanical arm with a slender proboscis-like pipette at the tip.

NEWYORKER: Snacks for a Fat Planet