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Hayadan > Archived April 3, 2002

April 3, 2002

Europe has launched a satellite to monitor the quality of the environment

The science service
April 3, 2002
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The laser that deciphers mysteries in the moon

The knowledge site system
April 3, 2002
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Black holes "dance the tango"

The knowledge site system
April 3, 2002
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Solving the pendulum clock mystery

The knowledge site system
April 3, 2002
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