Rule of Thumb

MAKING A TELESCOPE

For a first-time telescope maker, it is faster to make a four-inch mirror, and then a six-inch mirror, than to ...

For a first-time telescope maker, it is faster to make a four-inch mirror, and then a six-inch mirror, than to make a six-inch mirror. — Bill McKeeman, Wang Institute, Communications of the ACM

11/25/14

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