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Make Your Own Eclipse Viewer

Hundreds of years before solar viewing glasses were readily available, scientists and casual spectators could still enjoy these rare celestial events without frying their eyeballs. They'd use a combination of pinholes and mirrors to redirect the sun's rays onto a screen.

An 18th century engraving depicts a camera obscura.
/ Bettmann Archive/Getty Images
/
Bettmann Archive/Getty Images
An 18th century engraving depicts a camera obscura.

It took a while to figure out how to build the so-called camera obscura. Ancient Chinese and Greek scholars puzzled over pinholes for centuries before an Arab mathematician and scientist came up with a design.

You can rig up your own version with simple household items. It's easy. Skunk Bear's latest video shows you how.

And remember, never look directly at the sun without appropriate eye protection.

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Eclipses are beautiful, and they're also really important to scientists. Skunk Bear's latest video explores the many discoveries sparked by solar eclipses. Check it out over on Skunk Bear's YouTube channel.

Copyright 2021 NPR. To see more, visit https://www.npr.org.

Ryan Kellman is a producer and visual reporter for NPR's science desk. Kellman joined the desk in 2014. In his first months on the job, he worked on NPR's Peabody Award-winning coverage of the 2014 Ebola outbreak in West Africa. He has won several other notable awards for his work: He is a Fulbright Grant recipient, he has received a John Collier Award in Documentary Photography, and he has several first place wins in the WHNPA's Eyes of History Awards. He holds a master's degree from Ohio University's School of Visual Communication and a B.F.A. from the San Francisco Art Institute.

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