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Peggy Whitson
2012-10-27 13:45:00

Peggy Whitson is an American biochemistry researcher and one of NASA’s most experienced female astronauts after having spent a total of over 365 days in space. She was born Peggy Annette Whitson on February 9, 1960 in Mount Ayr, Iowa, and grew up on a farm outside Beaconsfield. She graduated from Mount Ayr Community High School in 1978 and went on to attend Iowa Wesleyan College, where she received a Bachelor of Science degree in biology and chemistry in 1981. She then went on to receive...

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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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