SciShow
We Threw Away $15 Billion in Gold Last Year
In 2022, humanity threw roughly 15 billion dollars of gold into the trash. That's because gold plays a small but significant role in our electronics. E-waste is a major issue these days, and scientists are hunting for better ways to...
SciShow
That Time Scientists Tried Stopping Hailstorms With Rockets
If you ask your favorite search engine where Earth gets the most hail, it's likely to spit out Kericho. But can you use exploding rockets to suppress that hail? That's one question both companies and researchers tested out. Hosted by:...
SciShow
We Solved The Mystery Of The Pyramids
The Pyramids of Giza have fascinated and confused us for hundreds of years, and while we know a lot about who built them and how they were made, one question that has remained is why they are where they are. And the answer to that...
SciShow
Why Can't Hand Sanitizer Kill The 0.01% of Germs?
There's a scientific reason most hand sanitizers claim they can kill 99.99 percent of germs, and there's only one way to deal with the rest. Correction: there is a typo in the credits. This episode was written by Roshni Bhatt Hosted by:...
SciShow
Is Pregnancy Carcinogenic?
Does childbirth increase your chance of breast cancer? Yes. But it also decreases it in the longterm ...depending on how old you are your first time around. It has to do with your hormones like estrogen and the damaged DNA in your cells....
SciShow
How to Save the World from Plastic
We've all heard about microplastics, but where do they come from? And what can we do about ocean plastics? We'll follow a single water bottle on its journey to the Great Pacific Garbage Patch and beyond. Hosted by: Stefan Chin
SciShow
The People Who Remember Every Moment of Their Lives
Imagine you could remember everything that ever happened to you. Would it be a blessing, or a curse? Super rememberers, people with highly superior autobiographical memory or HSAM, have the answer -- and may also be able to tell us how...
SciShow
How Leeches Are Helping to Save Endangered Species
Leeches are bloodsucking parasites, and you wouldn't think they're great at protecting other species. Yet for some conservationists, these little vampires are one of the best tools available for conserving endangered and threatened...
SciShow
Earth's Largest Crater Is Hiding in Plain Sight
An asteroid nearly twice the size of the one that killed the dinosaurs left a record-setting crater in South Africa. If you look closely, you can still see it today, 2 billion years later. Hosted by: Jaida Elcock (She/her)
SciShow
How To Make Buildings Into Batteries
It's no secret that we need green energy solutions. But one often-overlooked part of that future is the need to store our green energy longer-term, so finding novel ways to store that energy is key. Enter: gravity batteries. Hosted by:...
SciShow
Why They Can't Make an HIV Vaccine (They're Trying!)
A lot of very smart people have been working for a very long time on vaccines for HIV/AIDS, and they've come up empty. Thanks to broadly neutralizing antibodies (bnAbs) and mRNA vaccine technology, that might be changing. Here's why we...
SciShow
Does Microdosing Actually Work?
There's a growing trend out there among users of hallucinogenic drugs - microdosing. The idea is to take a tiny dose of these drugs to get certain brain benefits without going all Sergeant Pepper. But does it work? Let's get into what we...
SciShow
We Don't Know What Causes the World's Worst Pain
Settle in and grab a painkiller, because these are some of the most painful diseases out there. From trigeminal neuralgia to thunderclap headaches and even jackhammer esophagus, these conditions crank the pain scale to an eleven. Hosted...
SciShow
What's the Loudest Possible Sound?
How many decibels would be recorded by the loudest sound waves your ears could possibly process? The loudest sound might be quieter than you think (because of how sound waves work)...or it might be louder than you think (because of how...
SciShow
Why Did Botswana Win the Diamond Lottery So Hard?
Of the 10 largest rough diamonds ever mined, 6 of them have come from the African nation of Botswana. Russia is the only country that produces more diamonds by volume, but the individual gems don't tend to be as large. So why is Botswana...
SciShow
Should We Build A Geothermal Power Plant In Yellowstone?
Yellowstone National Park is one of the most famous tourist destinations and nature reserves in the world. And it's also the perfect place for.... geothermal power plants? Let's talk about the weird reason why NASA is all for building a...
SciShow
The Thinnest Lens in the World is One Molecule Thick
Lenses are famous for their ability to bend light rays — to make smaller things look bigger, big things look smaller...even create a super bright beam of light that warns ships where the shore is. And some lenses, such as fresnel lenses,...
SciShow
Video Games Are Good For Your Brain
Are people who are more creative really "left-brained"? Is a human brain not fully developed until a person hits 25 years old? Did my parents waste a bunch of money buying Mozart CDs to make me smarter as a baby? In this episode, SciShow...
SciShow
Sex, Spider Attacks, and Other Acts Caught in Amber
Some of the coolest and most detailed fossils around aren't found in rocks - they're found in amber, a hardened tree resin that can preserve things in incredible detail. From dinosaur feathers to spider webs, and even more, here are a...
SciShow
You Are Traveling at the Speed of Light Right Now
You've probably heard the rule that you cannot travel faster than the speed of light (in a vacuum). And this is true. You may also have heard that you cannot travel precisely AT the speed of light. But this is false...because you are, in...
SciShow
How Safe Are Food Preservatives, Really?
You may have seen some unpronounceable words or weird abbreviations in your food's ingredient lists before, but have you ever wondered why that stuff gets added into your snacks? It's not just for fun, those preservatives are all there...
SciShow
How Not Sleeping Actually Kills You
Who among us hasn't uttered the phrase "I'll sleep when I'm dead"? Well, sleep deprivation can totally kill you. But you might be surprised to learn what the actual cause of death is, and a technique you can use to stay awake for the...
SciShow
A Quarter Of All Your Bones Are In Your Feet
You might have heard that a quarter of your skeleton is in your shoes, and that's true, as long as they're closed-toe. So why do we need that many foot bones? The answer is more complicated than you think, and to get to the bottom of it...
SciShow
We Can't Find the Most Important Fossils Ever
About 360-ish million years ago, some tetrapods moved onto land and changed the course of history. So we'd love to know more about these guys, and what it took to get there. But the thing is, the fossils we need to understand this...