old account (geometricv)

Race #3594

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Official speed 123.10 wpm (31.58 seconds elapsed during race)
Race Start June 12, 2020 6:18:15am UTC
Race Finish June 12, 2020 6:18:46am UTC
Outcome Win (1 of 2)
Opponents 2. promechanics (86.62 wpm)
Accuracy 97.0%
Points 127.20
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.