SciShow
Why Do Golf Balls Have Dimples?
The size, shape, and designs of the balls used in sports are usually the results of decades or even centuries of trial and error, and the cute, dimply li'l golf ball is no different!
TED Talks
Rob Forbes: Ways of seeing
Rob Forbes, the founder of Design Within Reach, shows a gallery of snapshots that inform his way of seeing the world. Charming juxtapositions, found art, urban patterns -- this slideshow will open your eyes to the world around you.
TED-Ed
TED-ED: The strange case of the cyclops sheep - Tien Nguyen
In the 1950s, a group of ranchers in Idaho were baffled when their sheep gave birth to lambs with only one eye. Mystified by these cyclops sheep, they called in scientists from the U.S. Department of Agriculture to investigate. What...
Bozeman Science
Asking Scientific Questions
In this video Paul Andersen explains how you can get your students asking more and better scientific questions. In this video Paul Andersen explains how scientific phenomenon and sensemaking can be used in the science classroom to engage...
SciShow
The Nearsightedness Epidemic
While not the kind of epidemic you're used to hearing about, nearsightedness is becoming a major health issue in many places. Learn about how scientists are finding out the reasons behind the increase in myopia, and how sunlight might be...
SciShow
What Is Gravitational Lensing?
Learn more about gravitational lensing with host Caitlin Hofmeister.
Crash Course
How Does Air Temperature Shape a Place Crash Course Geography
Today, we’re going to visit Siberia and take a closer look at how temperatures there (and around the globe) impact the way cultures, communities, and landscapes form. Air temperature plays a much bigger role than just helping us decide...
TED-Ed
TED-Ed: Pavlovian reactions aren't just for dogs - Benjamin N. Witts
Dr. Ivan Pavlov's groundbreaking work revealed that a dog will respond to neutral stimuli, such as a bell, in the same way that it will respond to, say, mouth-watering food. This research is widely applicable beyond a dog's salivation....
Crash Course
ANOVA Part 2 Dealing with Intersectional Groups - Crash Course Statistics
Do you think a red minivan would be more expensive than a beige one? Now what if the car was something sportier like a corvette? Last week we introduced the ANOVA model which allows us to compare measurements of more than two groups, and...
SciShow
How Pictures of Eyes Change the Way You Act
At some point, you may have noticed a poster or photo with eyes on it hanging somewhere public. What you probably didn't notice is the effect that picture has on your brain.
TED-Ed
TED-Ed: The surprising reason you feel awful when you're sick - Marco A. Sotomayor
It starts with a tickle in your throat that becomes a cough. Your muscles begin to ache, you grow irritable, and you lose your appetite. It's official: you've got the flu. It's logical to assume that this miserable medley of symptoms is...
3Blue1Brown
Matrix multiplication as composition: Essence of Linear Algebra - Part 4 of 15
How to think about matrix multiplication visually as successively applying two different linear transformations.
TED-Ed
TED-Ed: Is time travel possible? - Colin Stuart
Time travel is a staple of science fiction stories, but is it actually possible? It turns out nature does allow a way of bending time, an exciting possibility suggested by Albert Einstein when he discovered special relativity over one...
SciShow
The Two-Faced Role of Planetary Magnetic Fields
Given that Earth’s magnetic field helps protect its life-sustaining atmosphere, you might think that the stronger a planet’s magnetic field, the better. But as it turns out, some planets’ relationships with their magnetic fields are a...
SciShow
Does Milk Make You Phlegmy?
It’s become a common belief worldwide that gulping down a glass of milk will make you phlegmy. But... there seems to be no real scientific evidence to back up that claim.
SciShow
Why Do People Go Bald?
How does balding work? Why does it happen? And why are men so much more likely to lose their hair than women? Quick Questions has the answers!
SciShow
Why Does Toothpaste Make Everything Taste Bad?
Have you ever noticed that toothpaste makes some yummy foods, like orange juice, taste awful? QQ explains!
SciShow
The Stroop Task: The Psych Test You Cannot Beat
The task sounds like it should be pretty easy, but the Stroop task is a fantastic, and very well studied, example of how your brain’s automatic processing can trip you up!
SciShow
Why Just Smiling Could Make You Feel Happier
Being happy makes you smile, but that might just work the other way around, too.
SciShow
Why Don't Spaceships Have Artificial Gravity?
We've seen this done in movies right? Well, why don't spaceships have this technology?
SciShow
Astronaut Weightlessness Training
SciShow Space takes you behind the scenes of astronaut training, to show how crew members and their equipment are tested in microgravity, all while never having to leave Earth.
TED-Ed
TED-Ed: Attack of the killer algae - Eric Noel Munoz
As benign as it may look up close, the tiny seaweed Caulerpa taxifolia can wreak quite a bit of havoc on coastal ecosystems. This super algae is very adaptable; it also grows fast and spreads easily. Eric Noel Munoz gives the details of...