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Latest Law of superposition Stories

2008-08-07 03:00:10

Most of us think fossils are fascinating evidence of life in the past, eons before the first person appeared. People are usually captivated by the large fossils - dinosaurs, mammals and sharks - but only a few ever look at the microfossils. Dinoflagellates, calcareous nanofossils, diatoms, pollen and numerous other microscopic plants and animals are present in the Earth's layers, or strata. In fact, each stratum has its own unique assemblage of fossils. If you learn what fossils are in each...


Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.