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Tuesday, January 18, 2011

Solar-Powered Hornet Found; Turns Light Into Electricity

solar powered oriental wasp 29886 600x450 Oriental Hornets Can Generate Electricity from Sunlight
The oriental hornet has built-in “solar cells” that generate electricity from sunlight—a first in the animal kingdom, according to a new study.
Scientists already knew that the hornet species, for unknown reasons, produced electricity inside its exoskeleton, according to study leader Marian Plotkin of Tel-Aviv University.
Plotkin’s late mentor Jacob Ishay made the discovery after observing that the insect is active when the sun is most intense—unusual for hornets.
Plotkin and colleagues recently went a step further by examining the structure of the hornet’s exoskeleton to find out how the electricity is produced.
Their research revealed that pigments in the hornet’s yellow tissues trap light, while its brown tissues generate electricity. Exactly how the hornets use this electricity is still not entirely understood, Plotkin noted.

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