A Powerful Chemistry Tool Inspired by Music Boxes Only Costs $5

A Powerful Chemistry Tool Inspired by Music Boxes Only Costs $5

Stanford University’s Manu Prakash, Ph.D., loves coming up with cheap, rugged scientific equipment, like his 50-cent microscope made of folded cardboard . Now he’s followed that up with another ingenious chemistry tool: A $5 device that uses the guts from a music box to control chemical reactions with super precision.

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If Data Was Stored on Punch Cards, How Much Space Would Google Need?

If Data Was Stored on Punch Cards, How Much Space Would Google Need?

Imagine if all the world’s data was still stored on punch cards: we’d be drowning in cardboard. But just how much exactly?

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