heartbeats (jack777)

Race #30574

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Official speed 94.99 wpm (40.93 seconds elapsed during race)
Race Start December 19, 2018 10:25:02am UTC
Race Finish December 19, 2018 10:25:43am UTC
Outcome Win (1 of 4)
Opponents 2. daball (89.82 wpm)
4. yugurtz (85.84 wpm)
Accuracy 99.0%
Points 98.16
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.