Science In Action - Oldest Tools made by Man's Ancestors

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Science In Action

Oldest Tools made by Man's AncestorsOldest Tools made by Man's Ancestors

Released On: 24 Jan 1997

Available for over a year

Preshistoric technology used to make 2.5 million-year-old stone tools found in Ethiopia

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Science In Action
Oldest Tools made by Man's Ancestors
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Ten-micron-long guitar carved from crystaline silicon by an electron beam
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