Chrism4 (chrisman44)

Race #9608

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Official speed 53.79 wpm (72.28 seconds elapsed during race)
Race Start February 26, 2018 3:59:33am UTC
Race Finish February 26, 2018 4:00:46am UTC
Outcome No win (3 of 4)
Accuracy 96.0%
Points 55.58
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.