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New Scientist: Because the beam was powerful enough to drill holes in razor blades, physicists measured its power in gillettes, or the number of blades penetrated. 1) I had no clue that a lasers power was measured in Gillettes, and 2) I would not have guessed the reason why.
New Scientist:
Because the beam was powerful enough to drill holes in razor blades, physicists measured its power in gillettes, or the number of blades penetrated.
1) I had no clue that a lasers power was measured in Gillettes, and 2) I would not have guessed the reason why.
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