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It’s Okay to Be Smart

Why is the sky any color?

Video duration: 2:43

Why is the sky blue? It's a question that you'd think kids have been asking for thousands of years, but it might not be that old at all. The ancient Greek poet Homer never used a word for blue in The Odyssey or The Iliad, because blue is one of the last colors that cultures pick out a word for.

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Life by the Numbers

Life by the Numbers

How successful are we compared to other species? It turns out that biomass, or what things weigh, can be mo...

The Auroras

The Auroras

Space might seem like an empty place, but the area surrounding Earth is constantly being bombarded by waves...

Episodes of It’s Okay to Be Smart141

Video thumbnail: It’s Okay to Be Smart Are You Smarter Than A Slime Mold?

It’s Okay to Be Smart

Are You Smarter Than A Slime Mold?

The simplest organisms can still accomplish wonders.

4:39

Are You Smarter Than A Slime Mold?

4:39

Video thumbnail: It’s Okay to Be Smart Is Inheritance Really All In Our Genes?

It’s Okay to Be Smart

Is Inheritance Really All In Our Genes?

Epigenetic inheritance is really weird, but is it real?

4:51

Is Inheritance Really All In Our Genes?

4:51

Video thumbnail: It’s Okay to Be Smart How Do Bees Make Honey?

It’s Okay to Be Smart

How Do Bees Make Honey?

One of nature's most amazing recipes.

5:15

How Do Bees Make Honey?

5:15

Video thumbnail: It’s Okay to Be Smart How Many Trees Are There?

It’s Okay to Be Smart

How Many Trees Are There?

It may be an impossible questions, but we can at least get close.

4:15

How Many Trees Are There?

4:15

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