SciShow
How Long Have We Been Playing with Fire?
So we know that humans are pretty good at making fires, but how long have we been barbecue pit masters? Turns out the evidence is hardly a smoking gun.
SciShow
I Had Chemo and My Hair Came Back Curly!
Many patients experience changes to hair texture after chemotherapy known as "chemo curls." But why do they happen, and how many people get chemo curls? This episode will explain.
SciShow
$1 Placebo vs $10,000 Placebo (It Matters)
Some placebos are far more effective than others, and they can lead to real chemical changes in the body.
SciShow
Cosmic Tails (That Aren’t From Comets)
Comets are famous for having space tails. But they're not the only ones! Asteroids, planets, and even stars can rock tails of their own.
SciShow
What Does My Cancer Diagnosis ACTUALLY Mean?
You've probably heard of cancers having stages, but what do all those stages really mean? This video is a 101 to explain cancer diagnosis and decode the jargon for you. And even if you've heard of the numerical stages, you might not know...
SciShow
Actually Understand Type 2 Diabetes
Type 2 diabetes affects over 400 million people. It can be confusing and difficult to manage, so in this video we'll answer all your questions about type 2 diabetes, including what to eat, what affects your risk, and is there a cure.
SciShow
I’m A Genetic Engineer. I’m Also a Fish.
Horizontal gene transfer might not be the flashiest of names, but animals are using it to create genetic hybrids without a human in sight. Like frogs rocking the DNA snippets of snakes, and fish sharing antifreeze superpowers.
SciShow
Why We'll Never Build a Perfect Clock
We can make clocks that keep accurate time for millions of years. We can also make clocks with such high resolution they tick one billion billion times per second. So why can't we make a clock that does both?
SciShow
The Rarest Objects in The Solar System Are from...Elsewhere...
In 2017, astronomers discovered 'Oumuamua — the first definitive interstellar visitor to our solar system. But definitive evidence of space rocks that don't just visit but join our solar system is a little more elusive.
SciShow
Attempting De-Extinction
There's a group trying to save the functionally extinct northern white rhino using in vitro fertilization. But the ethics around using assisted reproductive technologies to save endangered animals are far from simple.
SciShow
How Do We Figure Out The Sex ... Of A Fossil?
We know a lot about fossils, but there's one thing about all those long-dead organisms that's hard to figure out -- their sex. So let's talk about the ways we can try to determine whether those T. rex bones came from a male or a female,...
SciShow
Inbreeding with Yourself
*At the time this video was made, it had been reported that Charlotte the round ray was pregnant. However, new information has come out that she was never pregnant with parthenotes, and in fact had a reproductive disorder, which is a...
SciShow
Four Weird Ways to Make Electricity
When you think of newer ways to make electricity, solar cells and wind turbines may come to mind. But scientists can make the stuff from just about anything. And they're working on some truly bizarre ways to generate power.
SciShow
Crying is Extremely Weird
If you want to learn more about how our brain reacts to other people’s emotions, start your college journey with Study Hall! Take a college course that starts on YouTube and earn credit before you even apply to college. Go to...
SciShow
The Alien Storm That Ate Itself
From cyclones to snowstorms, Earth is home to some spectacular weather events. But they're nothing compared to what you can find on the other planets in our solar system. Magnetic tornadoes? Ammonia mushballs? Let's (not literally) dive...
SciShow
How These Animals Lost Their Heads (And Bodies, and Butts)
You'd think that there are some features that, once an animal group evolved to have them, could never really go away, right? Well, Stefan is joined today by hosts from PBS Eons, Journey To The Microcosmos, and Bizarre Beasts to break...
SciShow
One Weird Reason People Suck at Parking
Human territoriality results in some pretty ridiculous behaviors. And luckily, scientists have studied it in all kinds of situations.
SciShow
Does COVID Cause Cancer?
There's a troubling link between COVID and certain cancers, but as always, it's complicated.
SciShow
8 Terrible Science Takes
Have you ever seen a science take on the Internet that you're pretty sure is wrong, but you aren't sure how to break it down? Well good news, we are taking care of that for you! Here are just 8 of them, from climate myths to health...
SciShow
How We'll Beat Breast Cancer
Breast cancer is a shockingly common disease - as many as 13% of females may get it at some point in their lives. And there's a lot of confusing info out there about it, from hormones to BRCA genes to risks and treatments. So we're here...
SciShow
Retinal Scanning is Changing Healthcare
Your optometrist can tell you if you're at risk for cardiovascular disease, Alzheimer's, or diabetes. And it's all thanks to James Bond-style retinal scanners.
SciShow
Is Liquid Nitrogen the Future of Clean Energy?
Liquid nitrogen (LN2) might slow down a T1000 for a bit, and it definitely helps make yummy ice cream during a classroom demo, but it has a lot of applications you may have never considered. Maybe one day it'll help astronauts stay...
SciShow
How Much of the Periodic Table is in YOU?
About 99.9% of your typical human body is made of just 11 elements from the periodic table. But hiding in that remaining 0.1% are some elements that do some very important jobs to keep you alive and healthy. Including some elements you...
SciShow
Why Do Antidepressants Cause Brain Zaps?
For some people who stop taking an SSRI or SNRI antidepressant, they can get a weird side effect called brain zaps. And even though we've known about them for decades, we still don't know exactly why brain zaps happen.