Skip to main content

Up Next

There's No Such Thing As Cold

There's No Such Thing As Cold

Season 3 Episode 13
4:58
How Many Heartbeats Do We Get?

How Many Heartbeats Do We Get?

Season 3 Episode 16
4:27
Why Vaccines Work

Why Vaccines Work

Season 3 Episode 17
6:38
Why Does February only have 28 days?

Why Does February only have 28 days?

Season 3 Episode 18
4:28
Your #ScienceWoman Heroes

Your #ScienceWoman Heroes

Season 3 Episode 20
4:46
What Color is the Universe?

What Color is the Universe?

Season 3 Episode 21
2:51
What's The Loudest Possible Sound?

What's The Loudest Possible Sound?

Season 3 Episode 27
3:49
Does The Moon Really Orbit The Earth?

Does The Moon Really Orbit The Earth?

Season 3 Episode 28
2:44
When Will We Stop Using Oil?

When Will We Stop Using Oil?

Season 3 Episode 29
5:10
The Surprising Places We Waste Energy

The Surprising Places We Waste Energy

Season 3 Episode 30
3:26
Back to Show
It's Okay to Be Smart

How Many Smells Can You Smell?

Season 3 Episode 12

We walk through life led by our noses. Literally. Because they’re on the front of our faces. How does the sense of smell work, and how sensitive are our noses? Why are smell-related memories so vivid? How many different smells could we possibly smell?

Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Season
Why Getting Dizzy is Kinda Like Temporary Brain Damage
8:35
We’ve all gotten dizzy before… but have you ever gotten WEIRD DIZZY?
Unraveling the Great Butterfly Migration Mystery
9:12
The monarch butterfly migration is one of nature’s greatest events.
How to be Crushed by the Atmosphere!
6:56
Air. I bet you never even notice that it’s there.
Why Are So Many People Allergic To Food?
10:47
Why Are So Many People Allergic To Food?
Where On Earth Do You Weigh The Least?
7:13
This video is all about the difference between mass and weight.
Are You Afraid of Holes?
5:51
Are You Afraid of Holes?
The Impossible Hugeness of Deep Time
9:05
Humans have a hard time with really big numbers, especially when it comes to DEEP TIME.
Is There Life on Earth?
9:44
If we lived light years from Earth, how would we know there’s life here?
Why Do We Itch (ASL)
4:59
We explore how and why itching help!
Do Fish Pee?
4:53
You know you’ve wondered. Do fish actually pee?
Does Someone Else Have Your Face?
12:42
They say everyone has a doppelgänger, but is that really true?
The Raisin Bran Effect
5:19
Where do you see the Brazil Nut Effect around you?
Active loading indicator