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It's Okay to Be Smart
How Well Do Masks Work?
Season 8
Episode 16
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.
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5:42
Glass is made of sand, which is a kind of rock. But glass is transparent. We explore why!
11:20
This is how to make a COVID-19 vaccine.
8:01
Do you know the true story of how his famous experiment changed the world?
15:14
Here’s the true story of one of the oldest human customs still in use today.
8:07
Geckos can grip and climb almost anything almost like they can defy gravity but how?
11:38
The world is going to end and scientists are certain all of this will happen.
12:19
The fastest animal in nature isn't what you think it is. It's way, way smaller than that.
8:57
Let’s learn about how our brains keep track of and try to make sense of time.
12:54
Addressing a few of the most common myths & misunderstandings using scientific evidence.
8:11
Why don’t WE have our skeletons on the outside? This is the story of bones!
7:46
Or… maybe the question of what is and isn’t a dinosaur goes deeper than we think?
13:39
No flying animal alive today comes close to their huge size.