Push its joystick gently to the left and a forward-facing Sidewinder rolls laterally without turning an inch.

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He wound up bouncing between both rolls in 2008 and then turning in a mediocre year as a starter in 2009.

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In this column I recently wrote about the distinguished hood ornament the Rolls-Royce Spirit of Ecstasy, turning 100.

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Getting a good bearing is important because unless the insect rolls a direct course, it risks turning back towards the dung pile where another beetle will almost certainly try to steal its prized ball.

BBC: Dung beetles guided by Milky Way