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Latest Steven Shirey Stories

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2011-07-22 12:04:00

Ancient minerals tell story of planet's distant past.

2011-07-22 01:24:22

Jewelers abhor diamond impurities, but they are a bonanza for scientists.

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2008-06-11 16:34:01

The world's richest source of platinum and related metals is an enigmatic geological structure in South Africa known as the Bushveld Complex. This complex of ancient magmas is known to have formed some two billion years ago, but the source of its metallic riches has been a matter of scientific dispute. Now researchers from the Carnegie Institution and the University of Cape Town have traced the origin of the unique ore deposits by using another of South Africa's treasures—diamonds.


Word of the Day
coulisse
  • One of the side scenes of the stage in a theater, or the space included between the side scenes.
  • The outside stock exchange, or “curb market,” of Paris.
  • A flute or groove on the blade of a sword.
  • A section of stage scenery placed in a wing of a theatre.
The word 'coulisse' comes from a French word meaning "sliding door".
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