darwin

darwin
   a logarithmic unit measuring the rate of evolution in characteristics of organisms. If the measurement of a characteristic (such as length, for example) changes from a to b in y million years, then the rate of evolution is (ln b - ln a)/y darwins. (Technically, since the difference in natural logarithms is dimensionless, the darwin is a specialized name for the inverse megayear Ma-1). The unit is named for Charles Darwin (1809-1882), the English biologist who founded the theory of evolution.

Dictionary of units of measurement. 2015.

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  • Darwin, CA — U.S. Census Designated Place in California Population (2000): 54 Housing Units (2000): 54 Land area (2000): 1.375511 sq. miles (3.562558 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.375511 sq. miles… …   StarDict's U.S. Gazetteer Places

  • Darwin, MN — U.S. city in Minnesota Population (2000): 276 Housing Units (2000): 130 Land area (2000): 0.748639 sq. miles (1.938965 sq. km) Water area (2000): 0.078103 sq. miles (0.202287 sq. km) Total area (2000): 0.826742 sq. miles (2.141252 sq. km) FIPS… …   StarDict's U.S. Gazetteer Places

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