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Alan Hirshfeld Audio Books

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by Alan Hirshfeld
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Many of us know little about Archimedes other than his Eureka exclamation upon discovering that he could immerse an object in a full tub of water and determine the object's weight.....

2.
by Alan Hirshfeld
Available on:
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In 1929, Edwin Hubble announced the greatest discovery in the history of astronomy since Galileo first turned a telescope to the heavens.

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