r (deroche1)

Race #164608

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Official speed 130.06 wpm (29.89 seconds elapsed during race)
Race Start May 16, 2017 5:46:06am UTC
Race Finish May 16, 2017 5:46:36am UTC
Outcome Win (1 of 5)
Opponents 2. diwang99 (118.87 wpm)
5. singhap (92.12 wpm)
Accuracy 90.0%
Points 0.00
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.