Mark (msg0192)

Race #54

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Official speed 78.73 wpm (49.38 seconds elapsed during race)
Race Start February 22, 2019 6:33:42am UTC
Race Finish February 22, 2019 6:34:31am UTC
Outcome No win (3 of 5)
Opponents 1. miket349 (116.81 wpm)
Accuracy 98.0%
Points 81.35
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.