ed72 (ed72)

Race #19777

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Official speed 73.26 wpm (53.07 seconds elapsed during race)
Race Start February 18, 2019 3:11:34pm UTC
Race Finish February 18, 2019 3:12:27pm UTC
Outcome No win (5 of 5)
Opponents 1. feelingsreal (96.48 wpm)
Accuracy 99.0%
Points 75.71
Text #3622413 (Length: 324 characters)

The observed brightness of a Lambertian surface may be written as the product of an albedo factor, p, and the cosine of the incident angle, cos i. This means that brightness can be written as a product of a term that depends on the material, p, and a term that depends on surface direction, which in turn depends on f and g.