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POLYMER ‘PULLEYS’ FOR BETTER BATTERIES

In this animation, a mechanical polymer network pulls taut to hold together silicon microparticles in an anode as a battery charges. Then it relaxes during discharging. Learn more about this stretchy system and why researchers think it’ll help improve how much charge a Li-ion battery can hold.

MEET TRACEY WEISSGERBER

The Mayo Clinic researcher says, chances are, you’re representing your data all wrong with bar graphs. Find out why.

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