Obey Refraction It's The Law Snell's Law Physics Face Mask

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Obey Refraction It's The Law Snell's Law Physics Face Mask Description

Optical physics humor featuring Snell's law -- also know as the law of refraction. Snell's law says that the ratio of the sines of the angles of incidence and of refraction is a constant that depends on the media. No matter where you are or what you do, you'll enjoy "Obey Refraction It's The Law" on this educational scientific humor polyester face mask! No need to be a physics teacher or physics major to enjoy.

$23.00