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How Trees Pollute the Air (and Why Your Coworker's Scientific Citations Don't Mean They're Right)
Season 10
Episode 14
10:38
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Reactions
Why is the US buying Canada's trash for $30,000 per gram?
Season 10
Episode 12
Companies around the world are fighting to buy a rare radioactive substance, despite its $30,000-per-gram price tag. This substance powers emergency exit signs that can stay bright for two decades without power, glow-in-the-dark keychains, and might one day unlock the holy grail of clean energy. What is this mystery substance?
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Are liquid, virtually fireproof, recyclable batteries the future of grid-scale storage?

11:39
Join George as he hunts for an antidote to deadly mushrooms.

12:15
George tests a newly discovered technique that could solve a recycling problem.

11:46
How does lime juice turn raw fish into delicious ceviche? We explain with biochemistry!

10:31
Forever Chemicals last… forever. Can a new technology finally send them to their doom?

8:21
Reducing the carbon footprint of concrete and cement by relying on biology.

9:13
Mosquitos really do prefer some people over others, and this Reactions ep explains why!

13:50
Discover the single most important chemical reaction on Earth, and why we need to kill it.

9:38
This week Reactions dives into something truly out-of-this-world: amorphous ice.

15:51
Are we about to re-define meat? If so, what is meat?!

11:48
How do carbon dioxide molecules trap heat in our atmosphere?

10:37
Why has the European Union banned certain colors for tattoos?