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Latest M. Louchart Stories

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2007-12-19 09:00:00

By Emily Murphy in Paris The "rediscovery" of a stunningly-preserved 30 million-year-old hummingbird fossil in southern France has deepened the mystery of why these fragile creatures disappeared from Europe and now exist only on the American continent. The fossil was originally found by an amateur palaeontologist at the end of the 1980s in the Luberon national park in Provence. It then lay in his private collection for a number of years, unknown to the wider world and as good as...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.