joffrey (joffrey)

Race #920

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Official speed 41.47 wpm (93.75 seconds elapsed during race)
Race Start January 25, 2019 6:38:47am UTC
Race Finish January 25, 2019 6:40:21am UTC
Outcome No win (3 of 4)
Accuracy 95.0%
Points 42.86
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.