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typeracer

Pit Stop
Racer HoangH7 (h7starlight)
Race Number 1620
Date Sat, 25 Mar 2017 11:53:24
Speed 67 WPM Try to beat?
Accuracy 94.2%
Rank 2nd place (out of 5)
Opponents f3l1x (4th place) fooxithim2016 (1st place) zimon129 (5th place)

Text typed:

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.
— (book) by Patrick Henry Winston (see stats)