NPR

How DOES your cellphone work? A new exhibition dials into the science

Turns out wireless networks aren't wireless at all. And light pulses in fiber optic cables carry your voice around the world. A new exhibition explains the science you hold in your hand every day.
Museum visitors explore <em>Cellphone: Unseen Connections </em>at the Smithsonian's National Museum of Natural History.

Most of us do not think too much about how our cellphones work. That is, as long as they work.

But a bustling, beeping exhibi0tion that opened in June at the Smithsonian's National Museum of Natural History teaches visitors all about the earth science that helps power our smartphones.

At kids dance in front of giant screens that turn them into child-sized emoticons and smash buttons

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