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What's That After-Rain Smell Made Of?

What's That After-Rain Smell Made Of?

Season 5 Episode 11
3:58
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
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Reactions

Cow Burps Are Warming the Planet

Season 5 Episode 9

Cows burp up a lot of methane thanks to the chemistry of their digestion. And since methane is a greenhouse gas, our beef and dairy have huge climate change consequences. This week on Reactions, we cover the gassy science of cow guts.

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The Invisible Tsunami That Killed 1,500 People in One Night
11:28
We investigate how a lake could explode and shoot out a gigantic wave of deadly CO2.
The Terrifying (but Awesome) Science Behind Red Tides
11:39
We dive into the science behind this somewhat terrifying, sometimes glowing phenomenon.
The Great MOLASSES Flood of 1919
12:52
We get into the science behind what created that 25 foot wave!
Challenger: The Real Story of an Avoidable Disaster
14:37
We explain the science behind this tragic, avoidable accident.
The Loneliest Whale
15:21
we bring you the story of the Loneliest Whale and other fascinating mammals.
The Ultimate Coffee Roasting Chemistry Throwdown
10:33
How hard could roasting beans at home really be?
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6:11
Doing these 3 things are critical.
How Does Tear Gas Work?
3:53
And did you know it's not actually a gas? We investigate.
We Surprised a Llama Antibody Researcher with a Llama
2:33
Scientists are considering some less-conventional approaches to tackle COVID-19.
Why Aren’t COVID Antibody Tests Better?
8:24
Learn how these tests work and why a test that’s 96% accurate is actually bad.
How Do Antiviral Drugs Work?
6:53
We called a few virologists to find out.
The Early Plan to Fight COVID with the Polio Vaccine
5:26
The COVID-19 pandemic has scientists considering a few less-conventional options.
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