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April 1, 2011

An atomic clock based on the resonance of cesium - model 5061A of the instrumentation division of Hewlett-Packard, now Agilent. From Wikipedia

The "state clock" will also move forward an hour

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Striped hyena. From Wikipedia

April Fool's prank - Dav

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Two maple trees growing together. From Wikipedia

Between trees and people - a variety of new exhibitions in the Science Garden at the Weizmann Institute

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