Science T shirt - Hydrogen Times Pi

Hydrogen Times Pi


That eerie frequency!  Tribute to the movie “Contact“, written by Carl Sagan.   The “hydrogen line” (which is the frequency of the spectral line created by hydrogen = 1420.40575 MHz) times pi (which is the ratio of a circle’s diameter to its circumference = 3.14159), which results in 4.4623 GHz, which is the frequency in which the Aliens transmitted their signal, which made Jody Foster go “Holy Shit”!. Buy Posters Here.

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