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Latest Impact winter Stories

Third-Largest Asteroid Impact Crater Discovered In South Australia
2013-02-17 09:34:13

A massive asteroid that crashed into Earth left behind a large impact crater in Australia and changed the entire landscape of the planet.


Word of the Day
pawl
  • A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.
The word 'pawl' probably comes from a Latin word meaning 'stake'.
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