Trivia

Subject:
An extra credit one for geeks;-)

Dan Donaldson
>We all talk about accuracy in measurements. Some for measurements of project parts, and others for machine setup. Here is an accuracy problem for you:

If I wanted to calculate the circumference of the known universe to an error of less than the diameter of a proton, how many decimal places of π would I need to use? I will make this one multiple guess.

A. 2.1 million
B. 39
C. 42,134
D. 376

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