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February 23, 2018 04:30 pm PST

Incredible overview of making mirrors for the world's largest telescope

The Giant Magellan Telescope is a marvel of engineering, and Dr. Patrick McCarthy explains the years-long process to make an optic mirror that costs over $20 million. (more…)


Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/t9VjVPQzDfc/incredible-overview-of-making.html

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