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Latest Raymond Riise Stories

15e8f49335e819d13d2b7b54b965d4961
2009-01-06 07:30:00

A space elevator prototype, featuring a broomstick, has shaken up scientists’ approach to the century-old idea.


Word of the Day
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.