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Galapagos tortoise species ID’d from specimen in UW…

[caption id="attachment_6502" align="alignright" width="600"] The skull and scutes of a newly-identified species of Galapagos giant tortoise in the UW-Madison Zoological Museum. The tortoise, which was hiding in plain sight on the Galapagos island of Santa…

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Metal defects can be eliminated by cyclic loading

Finding shows small amounts of repeated stretching can eliminate crystal defects in nanoscale metal parts. CAMBRIDGE, Mass.--It’s a well-known characteristic of metals that repeated bending in the same place can cause the material to weaken…