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Why Can’t You Buy Fresh Olives?

Why Can’t You Buy Fresh Olives?

Season 5 Episode 12
3:15
Burning Ice from the Ocean Floor

Burning Ice from the Ocean Floor

Season 5 Episode 14
3:44
How Do Airbags Work?

How Do Airbags Work?

Season 5 Episode 15
3:11
Does Melatonin Do Anything?

Does Melatonin Do Anything?

Season 5 Episode 16
4:22
How Milk Becomes Cheese

How Milk Becomes Cheese

Season 5 Episode 17
6:44
How Seashells Are Made

How Seashells Are Made

Season 5 Episode 20
3:43
Are We Breathing Caesar's Last Breath

Are We Breathing Caesar's Last Breath

Season 5 Episode 21
5:24
How Do Hydrangeas Change Colors?

How Do Hydrangeas Change Colors?

Season 5 Episode 22
5:05
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Reactions

What's That After-Rain Smell Made Of?

Season 5 Episode 11

There’s a sweet smell in the air after it rains, whether it’s a spring shower or a summer storm. This week on Reactions, we explain the chemistry of petrichor, the smell of rain.

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I Made Kidney Stones So I Could Destroy Them Forever
11:57
Alex made some kidney stones at home and tested prevention methods to keep them at bay.
How Trees Pollute the Air (and Why Your Coworker's Scientific Citations Don't Mean They're Right)
10:38
An email from a subscriber made us question everything we thought we knew about trees.
Every other video about color is wrong.
21:33
The 15 ways that color happens. It's all about the electrons. Well, almost.
Why is the US buying Canada's trash for $30,000 per gram?
12:07
This element powers glow in the dark exit signs, keychains, and costs $30,000 per gram.
Did fraud lead us to an Alzheimer's breakthrough?
9:53
Scientific fraud rocked the Alzheimer’s research community. Did it help point to a cure?
Don't Drink Raw Milk. But What About Raw Milk Cheese?
12:54
Alex Dainis explores whether or not your milk needs to be pasteurized. Yes, it really does.
This Video is About Electroadhesion
14:04
George tests a revolutionary new way to stick stuff together.
Chirality is Just Turtles All the Way Down
12:02
Sometimes the difference between life-saving drug and deadly side effect is chirality.
This (Edible) Mushroom Could Kill You
17:23
What happens when you eat morel mushrooms.
Science Doesn't Understand How Ice Forms
10:31
WARNING: this video contains incredible macro footage of supercooled water droplets nucleating ice.
Is There a Quick Fix for Ocean Acidification?
13:12
Let’s dive into the science behind ocean alkalinization!
I Reinvented a 300-Year Old Drink
16:56
Discover why curdled milk is the key to the best cocktail you’ll ever taste.
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