Topic: Biosciences

In this video, we’ll see how close chemists are to making synthetic, transfusable blood.

Watch as Reactions uses some acid know-how to tell a chemistry detective story and sort real gold from the imposters.

Sam and George compete to find out how hard roasting coffee beans can really be.

Bakers on TV are always talking about gluten, like it’s some kind of monster hiding in your bread. So is it gluten good, or bad for you?

How do you recover gold that’s been dissolved in acid? How do we know the half-life of uranium? We take on your burning chemistry questions.

In this episode, we’re talking the science of airbags protect you in a car accident.

In this video, learn how leather is made using techniques that are thousands of years old.

Nanomachines are many orders of magnitude smaller than a human cell, but they have huge promise. In the future, they could deliver drugs anywhere in the body, clean up oil spills and might even be used as artificial muscle cells.

This video shows how life started on Earth and how to find it on other planets with chemistry.

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

Life depends on death and all living things die. So are we breaking the circle of life?

Can we use preservatives to make a strawberry last forever?

Before you go to the beach, can sunscreen prevent wrinkles, skin cancer and sunburn?

In this episode, we see the possibility that lead caused the Roman Empire’s collapse.

Reactions travels to see if dogs or chemical detectors are better at finding hidden bombs.

A year later after COVID-19 pandemic began, what do we know now that we didn’t back then?

In this video, Sam chats with Steven Townsend on what makes breast milk good for babies.

In this video, we tackle the chemistry behind why cute pup’s paws smell like corn chips.

In this video, our hosts try to find something besides milk that quenches the peppers burn.

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

In this video, Sam’s friend got a crazy skin burn from making a margarita at the beach.

We talked with David Kroll to learn how these tests work and why it’s actually pretty bad.

We called a few virologists to find out how Antiviral drugs could help us fight COVID-19,

We checked to see if polio vaccine might provide protection against COVID-19.

This video shows why CDC wants people to wear masks to decrease the spread of COVID-19.

We chat with Benjamin Neuman, to find out when to expect a vaccine against COVID-19.

This video explains chemistry behind why soap is effective against viruses like COVID-19.

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.

Today we’re going to test how well you can tell a perfectly safe Mushroom from the poisonous ones.

In this episode, we break down a few options on what to do with your body after you die.

Watch some cartoons with our host Sam and learn whether their chemistry checks out.

Happy Holidays! Kick back, relax and enjoy our chemistry-themed yule log trivia video!

We gave PBS hosts random foods, to see if the miracle berries taste has any limits.

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

This Halloween season, we unpack the chemistry of the vampires.

In this episode of Reactions, learn how you, too, can make magnetic and colored slime!

In this episode: whip out your phones, start Googling to see some quick stain removal tips.

In this video, we talk about “superhero strength” and the chemistry behind what’s possible.

This episode shows some products that could cause dangerous side effects to birth control.

This episode shows how firefighters are using fertilizer to keep dangerous blazes at bay.

This video explains the effects of overdosing.

In this Reactions video, we break down our top five strangest poisons you’d least expect.

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

In this video, find out great lengths used to make gunpowder during the Revolutionary War.

This video shows what ringworm is, how it feeds on skin and how to not be its next meal.

In this video, we use science to see if using Cannabidiol, (CBD) make you fail a drug test?

In this episode, discover what makes carbon the backbone of all forms of life on Earth.

In this video, we examine weaponized hot sauce and what to do if you spray yourself.

In this video, we’re going to debunk some myths behind the many different types of tea.

This episode explores a wide range of chemical tricks behind colorful bird feathers.

In this episode, you’ll learn the chemistry being used to make the perfect dog food.

In this video, you’ll learn everything you’re dyeing to know about artificial hair color.

In this video, you're about to find out if death by toilet bowl cleaning can really happen.

Ms. Beautyphile helps us tackle the science behind perms and overall big 80s hair.

Why does white chocolate so unique from the dark chocolates we know and love so well?

Reactions and Ms. Beautyphile explain, the chemistry of shaving creams.

This video shows flamingos are the most hardcore animals on the planet and they are pink.

This video shows why aspirin works in a baby-sized dose, but doesnâ t work for pain relief.

In this video we ask, what makes kimchi sour, spicy, yet surprisingly rich and buttery?

The holiday, enjoy this compilation video of Thanksgiving turkey chemical deliciousness!

This episode debunks the myth that birds getting hurt by rice thrown at weddings.

In this episode, we explore how astronauts survive the deadly radiation of deep space.

This episode explains why you catch more flies with honey than with vinegar.

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

This week, we ask: can the power of silver combat sweat smells from your workouts?

Reactions explains the chemistry of the film that protects your eyes when you wake up.

Reactions explains the chemistry of the film that protects your eyes when you wake up.

This week, we ask: can the power of silver combat sweat smells from your workouts?

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

In this video about preserving food, learn about the smelliest food from the experts.

This episode analyses cheeses so stinky they’re banned on public transit in France.

We’re trying again to change hydrangea, since it didn’t work in an earlier episode.

We’re trying again to change hydrangea, since it didn’t work in an earlier episode.

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

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

In this video, we use chemistry to see what makes cake donuts different from yeast donuts.

In this episode, learn about nanotechnology and the chemistry of color-changing lizards.

We visit St. James Cheese Company in New Orleans to learn how milk becomes cheese.

How does Melatonin work? In this video, we go into the chemistry of this sleep aid.

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 video, we’re explaining the science of flame jetting and the dangers this ten-foot fireball can cause to students and teachers.

Did you know that tree-ripened olives are not black but green? In this video, we break down the chemistry of these salty, oily stone fruits.

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

Cows burp up a lot of methane, a greenhouse gas that has huge climate change consequences. In this video, we uncover some gassy science.

These black preserved eggs don’t look like food, but in this episode we’ll show how chemistry turns century eggs into a Chinese comfort food.

These black preserved eggs don’t look like food, but in this episode we’ll show how chemistry turns century eggs into a Chinese comfort food.

Thanks to our amazing fans for asking! Got more chemistry questions? Drop ‘em in the comments and we might answer them in future episodes.

Reactions tackles the keto diet fad that never dies—The science that goes on with cutting out carbohydrates.

What is it about this little plant that makes Cilantro is one of the most polarizing herbs the planet? The answer's in the chemistry folks!

Whether or not you have anxiety, you’ve probably heard of Xanax. But what’s in this popular and widely prescribed drug, and how does it work?

We're taking a closer look at hand sanitizers, what this goo is made of, and just how effective it really is against viruses and bacteria.

Eggs are edible and incredible, so we've got three kitchen egg demos that will bounce and colorize you into total chemical bewilderment!

Jacques Dubochet, Joachim Frank, and Richard Henderson are the 2017 Nobel Prize winners for their development of cryo-electron microscopy.

The space probe has uncovered chemical mysteries on the moon Titan that will keep scientists busy for years to come.

The products we use every day leave behind chemical footprints. Learn how and why researchers are now studying those trails.

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!

What’s the difference between fluorescence and bioluminescence? We illuminate the biochemical distinctions.

Chemists have found fantastic drugs in nature—like the blood from the Komodo dragon—that could save your life.