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i Squared equals -1 The origin of complex numbers Equation Bag
Main Tag:  

Description: A stark black background features a mathematical equation in white text. The equation reads 'i² = -1'. Below this, another line of text states 'The origin of complex numbers'. The overall presentation is minimalist and educational.

Tags: complex numbers, educational, equals, equation, i

i Squared equals -1 The origin of complex numbers Equation Bag

by GRAPHIC CHARCOAL DARK

$19 $24

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E=coffee² Bag
Main Tag:  

Description: A great design for coffee loving scientists! Design reads E=coffee² and features an atom with three coffee bean in orbit.

Tags: coffee masks, atom, caffeine, caffeine addict, coffee beans

E=coffee² Bag

by SunGraphicsLab

$19 $24

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