John (andy1098)

Race #9

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Official speed 74.72 wpm (52.03 seconds elapsed during race)
Race Start November 22, 2017 9:23:50am UTC
Race Finish November 22, 2017 9:24:42am UTC
Outcome Win (1 of 2)
Accuracy 97.0%
Points 77.21
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.