1488 (1488)

Race #1038

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Official speed 61.81 wpm (62.90 seconds elapsed during race)
Race Start April 18, 2019 7:57:12pm UTC
Race Finish April 18, 2019 7:58:15pm UTC
Outcome Win (1 of 4)
Accuracy 96.0%
Points 63.87
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.