Always working (varunguptas)

Race #2512

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Official speed 47.64 wpm (81.61 seconds elapsed during race)
Race Start November 29, 2017 4:35:23pm UTC
Race Finish November 29, 2017 4:36:45pm UTC
Outcome Win (1 of 4)
Accuracy 95.0%
Points 49.23
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.