yappa (yappa99_rc)

Race #2529

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Official speed 73.72 wpm (52.74 seconds elapsed during race)
Race Start January 7, 2018 4:23:27pm UTC
Race Finish January 7, 2018 4:24:20pm UTC
Outcome No win (3 of 5)
Opponents 2. bodmas (81.13 wpm)
Accuracy 98.0%
Points 76.18
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.