SciShow
Is the Y Chromosome Disappearing?
Scientists know that the Y chromosome has been shrinking in size over millions of years, but recent studies suggest that it has more important genes, besides the ones that cause biological maleness. Hosted by: Michael Aranda
SciShow
How Smart Are Animals, Really?
Measuring 'intellect' is a difficult task. Check out one way scientists are attempting to make this endeavor more testable. Hosted by: Hank Green
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!
SciShow
When The Universe Will End
Hank serves up a buffet of news items that includes an approximate date for the end of everything, scientific proof that when it comes to sex bigger IS better, and a look behind how the London Olympics are going green. Bon appetit!
SciShow
Why Does Swiss Cheese Have Holes?
SciShow explains a) why Swiss cheese has holes, b) what Swiss cheese is called in Switzerland and c) what vested interest the U.S. government has in said cheese holes. Seriously, people.
SciShow
Why Can't My Cat See a Treat in Front of Her Face?
Cats are known for having fantastic night vision, but why is it during the day my cats can't see the treat that I'm putting right in front of them?
SciShow
When Winter Gives Dead Branches Hair
What is this strange looking stuff? Is this branch just covered in fungus!? Well, it’s not fungus...but fungus DOES have something to do with it!
TED-Ed
TED-Ed: Why do we have crooked teeth when our ancestors didn't? | G. Richard Scott
According to the fossil record, ancient humans usually had straight teeth, complete with wisdom teeth. In fact, the dental dilemmas that fuel the demand for braces and wisdom teeth extractions today appear to be recent developments. So,...
PBS
Bestselling author dismantles myths about fatness in latest book
Stigma around weight is pervasive in the United States. But as author and podcaster Aubrey Gordon outlines in her New York Times bestseller book, anti-fat bias is also counterproductive, exacerbating health disparities and interfering...
TED-Ed
TED-Ed: Why do beavers build dams? | Glynnis Hood
Nestled in the forests of Canada sits the world's longest beaver dam. This 850-meter-long structure is large enough to be seen in satellite imagery and has dramatically transformed the region, creating a pond containing 70 million liters...
PBS
How Drones Are Delivering Lifesaving Medical Supplies In Rwanda
Getting medical supplies to where they are needed fast can mean the difference between life and death outcomes, but moving them efficiently across long distances to remote and rural areas can be difficult for traditional transportation....
PBS
How scientists are tracking a massive iceberg in the making
Antarctica's Larsen Ice Shelf is disappearing section by section. A fast-growing rift, one of the largest ever seen, is now teetering on the edge of breaking away from the glacier. Science correspondent Miles O'Brien explores how...
PBS
One of the biggest icebergs ever just broke off Antarctica. Here̥s what scientists want to know
A huge iceberg -- twice as large as Lake Erie -- has broken away from the Larsen C ice shelf in Antarctica, an event that researchers have been anticipating for months. Science correspondent Miles O'Brien joins Judy Woodruff to discuss...
PBS
Why does almost half of America’s food go to waste?
Roughly 40 percent of food produced in America never makes it to the table.
Whether it rots in the field, is trashed at the supermarket, or thrown out
at home, NPR’s Allison Aubrey looks at why good food is being discarded,
and...
3Blue1Brown
Group theory, abstraction, and the 196,883-dimensional monster
An introduction to group theory, and the monster group.
3Blue1Brown
What's so special about Euler's number e? Essence of Calculus - Part 5 of 11
What is the derivative of a^x? Why is e^x its own derivative? This video shows how to think about the rule for differentiating exponential functions.
Bozeman Science
AP Biology Practice 7 - Connecting Knowledge
In this video Paul Andersen explains the final AP Biology practice on connecting knowledge. The video begins with an introduction to interdisciplinary studies and how science is changing over time. He describes differences of scale in...
Crash Course Kids
Hunting for Properties
Remember pre-school? If not, IT WAS SO MUCH EASIER! But when you were stacking blocks and figuring out which block went into which shaped hole, you were learning about properties. In this episode of Crash Course Kids, Sabrina talks about...
3Blue1Brown
Derivatives of exponentials | Chapter 5, Essence of calculus
What is the derivative of a^x? Why is e^x its own derivative? This video shows how to think about the rule for differentiating exponential functions.
SciShow
Is the Y Chromosome Disappearing?
Scientists know that the Y chromosome has been shrinking in size over millions of years, but recent studies suggest that it has more important genes, besides the ones that cause biological maleness.
MinutePhysics
The Astounding Physics of N95 Masks
This video was written in collaboration with Aatish Bhatia - https://aatishb.com To learn more about using & decontaminating N95 masks: https://www.n95decon.org Thanks to Manu Prakash for useful discussion and feedback (Manu is involved...
MinutePhysics
The Black Hole Tipping Point
This video is about the Schwarzschild radius of a black hole, (its "event horizon"), and how much mass and density is required to reach the point of no return where an object like a star, neutron star, red giant, etc will collapse into a...
TED-Ed
TED-Ed: Do larger animals take longer to pee? | David L. Hu
A cat's bladder can only store a golf ball's worth of urine. For humans, it's a coffee mug and for elephants, a kitchen trash can. An elephant's bladder is 400 times the size of a cat's, but it doesn't take an elephant 400 times longer...
SciShow
The Human Neocortex Isn’t as Special as We Thought
For a long time, scientists considered the neocortex the brainiest part of the human brain – an obvious candidate for the thing that makes us unique. But in some ways, it’s not that different from other mammals’ brains. So researchers...