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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
Hydrangeas and the Science of Do-Overs

Hydrangeas and the Science of Do-Overs

Season 5 Episode 24
4:10
Why Does Stinky Cheese Stink?

Why Does Stinky Cheese Stink?

Season 5 Episode 25
4:57
How Air Conditioning Works

How Air Conditioning Works

Season 5 Episode 27
4:23
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Reactions

How Do Airbags Work?

Season 5 Episode 15

If you’re in a car accident, you want to be sure your airbags protect you. And they work because of chemistry, with some physics thrown in. This week on Reactions, we’re talking the science of airbags. And remember: Airbags are meant to work in conjunction with seatbelts, so buckle up!

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Season
How Does Sunscreen Work?
7:38
Can it actually stop us from getting wrinkles or skin cancer? We find out!
How Carbon Capture Works
7:39
Removing CO2 from our atmosphere can mean big business.
How Lead (Maybe?) Caused the Downfall of the Roman Empire
5:55
We unwrap the possibility that lead caused the Roman Empire’s collapse.
Pub Chemistry Trivia to Help You Interact With Humans
5:33
Get back out in the world with Pub Trivia!
Does Sugar Cause Diabetes?
5:50
We explore if eating a lot of sugar can actually cause diabetes.
We Burned Food to Figure Out How Many Calories It Has
7:56
Calories are complicated.
Can Science Make Less Addictive Opioids?
5:34
Will we ever have painkillers as good as opioids, but without the risk of addiction?
Catalytic Converter Stolen? Here's Why.
5:11
Catalytic converter theft is on the rise, and that’s partly because of their chemistry.
Forever Chemicals
4:24
Forever chemicals are used in everything from rain jackets to jet fuel.
Dog's Nose vs. Electronic Explosives Detector, Who Would Win
8:22
Is a dog or chemical detector better at finding a bomb? We find out!
The Science of How Life Started
8:08
We explore how are we using what we know to look for it throughout the galaxy.
COVID, One Year Later: What Do We Know Now?
8:08
We’re catching up with experts we talked to at the start of the pandemic.
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