MinutePhysics
What is Sea Level
An oblate spheroid is a special case of an ellipsoid where two of the semi-principal axes are the same size.
MinuteEarth
How Tall Can Mountains Be?
What is the maximum height for a mountain on Earth!? And why?
MinutePhysics
How Far Can Legolas See?
One Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in one minute!
MinuteEarth
When 90dB is LOUDER than 120dB
We often use decibels, a measure of sound pressure, to describe how loud something is - but loudness is caused by how we perceive sounds, and the two often don't line up.
SciShow
Everest Doesn’t Always Feel Like the Tallest Mountain
Mount Everest is unquestionably the highest point on earth, but it doesn't always feel that way.
SciShow
5 Strange Cases of Animal Rain
You might want a really sturdy umbrella to dig into this video, because we’re discussing 5 animals that have a tendency to rain down from the sky and the reasons we think this might be happening!
SciShow
7 Animals That Can't Be Trusted
Almost every human has told a lie at some point or another - but did you know that we are not the only species to do this? From dogs to cuttlefish to thornbills, these 7 animals also lie!
SciShow
How Rain Might Make Mountains Grow
Geologists have a few ideas as to how rain affects mountains. But could rain also help mountains grow?
3Blue1Brown
What does area have to do with slope? | Chapter 9, Essence of calculus
Derivatives are about slope, and integration is about area. These ideas seem completely different, so why are they inverses?
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
What does area have to do with slope? | Essence of calculus, chapter 9
Derivatives are about slope, and integration is about area. These ideas seem completely different, so why are they inverses?
TED-Ed
How the world's tallest skyscraper was built | Alex Gendler
In 2004, construction began on a new building in Dubai, promising a revolutionary design that would dwarf the rest of the world's skyscrapers. Five years later, the 828-meter Burj Khalifa was complete, surpassing the previous...
Be Smart
How Some Words Get Forgetted
English is a confusing language for many reasons. But the irregular verbs might be the most confusing part. Why is "told" the past tense of "tell" but "smold" isn't the past tense of "smell"? It turns out that the study of irregular...
TED Talks
TED: How can groups make good decisions? | Mariano Sigman and Dan Ariely
We all know that when we make decisions in groups, they don't always go right -- and sometimes they go very wrong. How can groups make good decisions? With his colleague Dan Ariely, neuroscientist Mariano Sigman has been inquiring into...
TED Talks
Ma Yansong: Urban architecture inspired by mountains, clouds and volcanoes
Taking inspiration from nature, architect Ma Yansong designs breathtaking buildings that break free from the boxy symmetry of so many modern cities. His exuberant and graceful work -- from a pair of curvy skyscrapers that "dance" with...
PBS
Kill the Mathematical Hydra
How do you defeat a creature that grows two heads for every one head you chop off? You do the math.
SciShow
4 Ways Humans Are Still Evolving
When we think about evolution, we typically think about big changes that happened long ago, but we humans are still evolving!
SciShow
How Rain Might Make Mountains Grow
Geologists have a few ideas as to how rain affects mountains. But could rain also help mountains grow?
TED-Ed
TED-Ed: How big is the ocean? - Scott Gass
While the Earth's oceans are known as five separate entities, there is really only one ocean. So, how big is it? As of 2013, it takes up 71% of the Earth, houses 99% of the biosphere, and contains some of Earth's grandest geological...
PBS
Scientists Have Detected the First Stars
What do the first stars in the universe, dark matter, and superior siege engines have in common?
TED-Ed
TED-Ed: The Tower of Epiphany | Think Like A Coder, Ep 7 | Alex Rosenthal
This is episode 7 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and...
SciShow
A Smelly Comet and a Record-Breaking Skydive
SciShow Space News gives you a whiff of comet 67P, and takes you through a record-breaking skydive from an altitude five times the height of Mount Everest.
PBS
What Planet Is Super Mario World?
We've run, jumped, and stomped all over the world of Super Mario, but, where in the universe is Super Mario EXACTLY? It's virtual so it obviously DOESN'T exist but if it did, could Super Mario world be in our solar system? And what do...
Crash Course
The Golden Age of Hollywood: Crash Course Film History
It's time for the glitz and the glamour of big motion pictures that helped keep American spirits up during and after the Great Depression. Sound was a huge change to motion pictures, but there were still a few technological innovations...