MinuteEarth
How Risky Are Vaccines?
Want to learn more about the topic in this week's video? Here's a keyword to get your googling started: herd immunity: immunity that occurs when the vaccination of a portion of a population provides protection for individuals who have...
TED Talks
TED: How aerosols brighten clouds — and cool the planet | Sarah J. Doherty
Here's a conundrum: the same aerosol pollutants that harm human health also help cool the climate, says atmospheric scientist Sarah J. Doherty. Is there a way to clean up the air without warming the planet? Exploring the unintended...
SciShow
Actually Understand Hormone Replacement Therapy
For transgender and nonbinary people, hormone replacement therapy has become one of the standards of care. But what is it, exactly? And what can people receiving the therapy expect? SciShow has the answers.
SciShow
The Science of Mouth Taping
Have you heard about this technique called mouth taping, and the claims it can cure everything from asthma to bad breath? We're here to cover what science and peer-reviewed research actually has to say about it.
SciShow
Mercury Shouldn't Be Liquid. But It Is.
Mercury, a.k.a. quicksilver, is famous for being a liquid at room temperature...and also below room temperature. But you can't use a high school chem class to explain why. Instead, we need a little help from Einstein.
TED Talks
TED: Why science needs to get behind natural medicine | Jeff Chen
Pharmaceutical companies often only patent drugs they can monetize, creating synthetic versions of remedies already available in nature. In this quick talk, physician and entrepreneur Jeff Chen offers a path to affordable, effective...
SciShow
Have an Autoimmune Disease? Blame the Black Death
The bubonic plague killed so many people in Europe, the Middle East, and North Africa that that natural selection event is still rippling through our genomes today. But the same genes that helped your ancestors survive the Black Death...
SciShow
How Blocking the Sun Makes Mars Hotter
If we’re going to send people to Mars someday, we’re going to need to be very conscious of the challenges presented in this endeavor. And at the top of that list is the ferocious nature of dust on the barren planet.
PBS
How Does Gravity Affect Light?
We know that gravity exerts its pull on light, and we have an explanation for why. Actually, we have multiple explanations that all predict the same thing. And at first glance, these explanations seem to describe completely different...
MinuteEarth
How Caffeine Accidentally Took Over The World
Plants don't make caffeine just for us, so what DO they make it for?
MinutePhysics
How to Simulate the Universe on your Laptop
One Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in one minute!
SciShow
Inside the Chernobyl Exclusion Zone
SciShow takes you inside the site of the world's worst nuclear disaster to show you how, nearly 30 years later, life has adapted and persisted.
SciShow
Should You Worry About Caffeine Dehydrating You?
There’s a widespread belief that caffeinated drinks will make you dehydrated because the caffeine itself makes you pee. But is caffeine affecting you as much as you think?
SciShow
A Cancer Gene May Be More Friendly Than We Thought | SciShow News
Until now, researchers have assumed that healthy cells switch off the enzyme telomerase as a way to protect themselves from turning cancerous. But a new study suggests the enzyme may have a healthier role than we previously thought....
SciShow
Krokodil, fake pot and the real chemistry of drugs
Time Magazine has called it "the most horrible drug in the world," and last month, it hit the US. Because seriously, why would you take a drug that rots your flesh, bones, and brain?! Hank Green discusses the science behind the street...
SciShow
Why It's Good for COVID-19 Models to Be Wrong
As we react to the predictions that epidemiological models make, changing the ways we act and go about our lives, those estimates can appear totally off. But if a model’s predictions end up being wrong, that might mean it's done exactly...
SciShow
What Drugging Animals Is Teaching Scientists
Drugging animals may seem like a bad idea, but you'd be shocked to learn what it can teach scientists about disease, biology & animal behavior! Join us for a new animal-focused episode of SciShow, hosted by the one and only Hank Green!
SciShow
Can Screens Damage Your Eyes?
You might have heard that exposure to unnatural lights from digital devices can hurt your eyes. But is that true? Hosted by: Stefan Chin
SciShow
From Lifesaver Sparks to Life-saving Tech: The Science of Triboluminescence
You might know that if you chomp on a Wint-O-Green Lifesaver in a dark room, you can see little blue flashes of light in your mouth. What you might not know is that this is an example of triboluminescence: a fascinating, somewhat...
SciShow
Earth Is Losing its Roots
Roots do more than hold plants in place -- they hold the planet in place. They're an important defense against drought and climate change, and of course, our actions are changing them.
SciShow
6 Stupid and Dangerous Things Scientists Did to Themselves
From poking their own eyes, to drinking a patient's vomit, some extremely passionate scientists have done pretty outrageous things to themselves in the name of science.
SciShow
Noise Pollution Is a Bigger Deal Than You'd Think
Humans make a lot of noise! Transportation, industries, & how we work and play in natural spaces all have an impact on the sound we put out every day, and all this noise pollution is disrupting how animals use sound to communicate.
SciShow
Why Some Frozen Lakes Catch Fire
Did you know that, despite their serene, picturesque appearance, some frozen lakes can catch fire? Why are climate scientists studying the explosive gas bubbles trapped in lake ice?
TED-Ed
TED-Ed: What did people do before anesthesia? | Sally Frampton
The quest for anesthetics that could induce unconsciousness and enable more meticulous surgeries began around the early 3rd century CE. Before anesthesia was widely used, patients had to consciously endure every moment of surgery. So,...