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How Well Do Masks Work?

Season 8 Episode 16 | 7m 25s

Wearing a mask is a cheap and easy way to help stop the spread of airborne infections like COVID-19. It’s also a sign that you want to help protect other people and have them protect you… that we’re all in this together. Here’s some awesome slow-motion schlieren imaging experiments to demonstrate why masks work! Share with someone who needs to see this.

Aired: 07/03/20
Extras
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A cosmic soup hadn’t existed in 13.8 billion years. Now, scientists cook it up in a lab.
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Here's why you aren't built like a lobster.
Can new technologies make death prediction even more accurate?
AI may help us talk to whales soon. But should we?!
The cosmic distance ladder is the world’s longest ruler, built to measure the universe.
Learn about the space junk problem and the giant space claw named ClearSpace-1 that might
On April 8, North America is getting a total solar eclipse. Here’s what you need to know.
These tiny pieces of an ancient asteroid could hold the secret to the origin of life.
What do scientists think are the best ways of reaching out to aliens?
How bad is climate change in 2023? We talk to scientists to understand the data and what w
A cosmic soup hadn’t existed in 13.8 billion years. Now, scientists cook it up in a lab.