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Latest Matthias Liess Stories

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2009-09-04 11:34:33

The long-term effects of pesticides on living organisms in rivers and on water quality can now be assessed more easily.


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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