Why a sausage can do what your gloves cannot - Charles Wallace and Sajan Saini

Dig into the science of touchscreens, and find out the difference between the two most common types: capacitive and resistive.

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In 2010, South Korea experienced a particularly cold winter. People couldn’t activate their smartphones while wearing gloves, so they began wielding snack sausages— causing one company to see a 40% rise in sausage sales. So, what could sausages do that gloves couldn’t? In other words, how do touchscreens actually work? Charles Wallace and Sajan Saini dig into the science of touchscreens.

Lesson by Charles Wallace and Sajan Saini, directed by Luis Torres, Mr. Flama.

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