The earthquake happened along a line where the Earth's Indo-Australian and Eurasian tectonic plates grind together, in the waters west of Sumatra.

ECONOMIST: Deluged without warning | The

This was the first time I'd ever heard more than 100 musicians bump and grind and totally groove together.

NPR: Getting Hooked on the 'Rite' Sound

When our assembly lines grind to a halt, we work together and we get them going again.

WHITEHOUSE: President Obama Speaks on the Resurgence of the American Auto Industry | The White House