Ivan (aivan2)

Race #711

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Official speed 66.49 wpm (58.47 seconds elapsed during race)
Race Start March 5, 2018 10:04:34am UTC
Race Finish March 5, 2018 10:05:33am UTC
Outcome Win (1 of 4)
Accuracy 95.0%
Points 68.71
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.