Mr. lee's expository writing class (kayak1)

Race #52774

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Official speed 135.91 wpm (28.61 seconds elapsed during race)
Race Start August 17, 2017 1:02:24am UTC
Race Finish August 17, 2017 1:02:53am UTC
Outcome Win (1 of 3)
Opponents 2. vinniwooh (112.49 wpm)
3. bblaise (110.67 wpm)
Accuracy 99.0%
Points 140.44
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.