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George tries to make electricity using dialysis tubing, toilet parts, and a baby turbine.

Alex wonders what happens when hot water freezes quicker than room temperature water?

Fluoride is everywhere in the discourse but here’s what the research actually says.

WARNING: this video contains incredible macro footage of supercooled water droplets nucleating ice.

Can an antacid solve ocean acidification? No, but it could still help the climate crisis.

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

In this video, we’re going to explore the weird science behind 74,963 forms of ice.

Have you ever seen a water droplet navigate a maze? It’s possible thanks to the phenomenon called the Leidenfrost effect.

In this video, we dive into heated debates about the science of water and its weirdness!

This episode explores how people have struggled for centuries to collect gold from oceans.

In this episode, Sam uses bacteria to clean up a Deepwater Horizon oil spill at home.

In this episode of Untold, the Loneliest Whale sings a song outside the normal frequency.

In this Untold episode, we investigate how a lake can shoot out deadly carbon dioxide gas.

In this Untold episode, we dive into the science of tiny organisms that cause red tides.

In this video, find out why shark repellent was developed for decades� but didn’t work.

In this video, find out why shark repellent was developed for decades� but didn’t work.

In this episode, we break down the chemistry of cryogenic and reanimating a frozen corpse.

In this episode, we’re digging into a few of the weirdest ways to combat climate change.

This episode explores how a fluffy cloud stays aloft in the sky, and how much it weighs.

This video shows why getting freshwater from ocean water is harder than you think.

For the winter holiday season, here is our chilly compilation of snow and ice chemistry!

In this episode we unravel the mystery of how Antarctica Fish avoid freezing to death.

How can a tardigrade survive practically anywhere? The secret comes down to chemistry.

We did the math to see how much tea was dumped in the harbor during the Boston tea party.

Yellowstone hot springs have incredible geochemistry, but why are they so dangerous?

We asked writer Sam Kean, are we breathing air molecules that were once exhaled by Caesar?

In this video, we explain how crumbly chalk and tough seashells are made of the same stuff.

This week in celebration of Earth Day, we talk about the chemistry of methane hydrates as a source of energy and a climate change threat.

In this episode, we explain the chemistry of petrichor, a sweet smell in the air after it rains during a spring shower.

From chocolate powder mix to the milk, check out these science-inspired life hacks will help improve your cold weather cup of hot cocoa.

Reactions is taking science to the skies to see what happens in the chemistry behind chemtrails, or more accurately, airplane contrails.

Going from Earth to Mars? Recycling is an astronaut’s best friend. We're looking at new uses for pee that flows farther than drinking water!

You’ve probably heard rumors that peeing on a jellyfish sting can make the pain go away, but does this old wives tale stand up to science?

In our last stop of the Speaking of Chemistry Road Trip, Kimberly Prather of UCSD and the Scripps Institution of Oceanography drops some serious knowledge on us.

Our pools are full of disinfectant chemicals that keep them free of microorganisms, but we're going to answer that age old swimmer's question - is it really okay to pee in the pool?

Lead levels were dangerously high in Flint’s tap water. Now, researchers at Virginia Tech are using analytical chemistry to try and make water safer.

The first food myth is one we've heard a lot: microwaving your food zaps the nutritional value. Watch to find out why that's a lot of malarkey.

Many agree that the Big Apple has the best bagels in the world, but many also disagree on why.

Best-selling author Sam Kean stops by Reactions this week to debunk the myth of the Megalodon, the 50-foot super shark.

Fortunately for beachgoers everywhere, our latest episode of Reactions explains why it is absolutely OK to pee in the ocean.

Through advances in crystallography, scientists have learned a lot about the staggering structure and the number of possible shapes in snowflakes.