This Is Informative, You Should Watch It of the Day

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This Is Informative, You Should Watch It of the Day: Turn up the volume and let recreational mathematician Vi Hart hand-hold you through the fascinating science and math of sound, frequency, and pitch.

[vihart.]

Nerd Alert of the Day

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Nerd Alert of the Day: Recreational mathematician Vi Hart (of doodling in math class fame) gets mathematical with a bunch of toy snakes.

[vihart.]