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SciShow
What is Restless Leg Syndrome?
We all get a jittery after sitting still for too long. But some people experience an irresistible urge to move their legs, and it can seriously affect their daily lives.
SciShow
Why Do We Stretch in the Morning?
Humans (and our pets) frequently instinctively stretch as soon as we wake up. But why? What is happening in our bodies when we stretch and yawn to wake ourselves up?
TED-Ed
TED-Ed: How stretching actually changes your muscles | Malachy McHugh
An athlete is preparing for a game. They've put on their gear and done their warmup, and now it's time for one more routine — stretching. Typically, athletes stretch before physical activity to avoid injuries like strains and tears. But...
3Blue1Brown
What DO we know about turbulence?
A look at what turbulence is (in fluid flow), and a result by Kolmogorov regarding the energy cascade of turbulence.
3Blue1Brown
Why 5/3 is a fundamental constant for turbulence
A look at what turbulence is (in fluid flow), and a result by Kolmogorov regarding the energy cascade of turbulence.
PBS
Topology Riddles | Infinite Series
Can you turn your pants inside out without taking your feet off the ground?
Be Smart
A Slice of Pizza Science!
How does math keep a folded slice from drooping? And what does pizza have to do with the speed of light?
SciShow
How Cold Can Earth Get?
These days it seems almost trivial to cool atoms down to near absolute zero temperatures in a lab, but what is the lowest possible naturally occurring air temperature on this planet?
SciShow
Why Do Ribbons Curl?
Curly, festive ribbons are a delight, sure, but the physics behind HOW they curl is much more exciting!
SciShow
Meet The Black Swallower Natures Top Competitive Eater
Deep in the ocean lives a fish that seems pretty normal right up until dinner time, when it reveals its secret talent: devouring meals much larger than itself.
TED-Ed
TED-Ed: Can you solve the penniless pilgrim riddle? - Daniel Finkel
After months of travel, you've arrived at Duonia, home to the famous temple that's the destination of your pilgrimage. The walk from the welcome center to the temple isn't a long one ... but there's a problem. Can you outsmart the city's...
TED-Ed
TED-Ed: Why do your knuckles pop? - Eleanor Nelsen
Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? Eleanor Nelsen gives the facts behind joint popping.
TED Talks
Rob Reid: The $8 billion iPod
Comic author Rob Reid unveils Copyright Math (TM), a remarkable new field of study based on actual numbers from entertainment industry lawyers and lobbyists.
SciShow
What the World’s Smallest Tweezers Tell Us About DNA
DNA isn’t the simple, loose double-helix you might see in a biology textbook, so isolating single strands of it can be next to impossible. But with some simple tricks of physics, scientists came up with a special type of tweezers that...
TED Talks
Renny Gleeson: Our antisocial phone tricks
In this funny (and actually poignant) 3-minute talk, social strategist Renny Gleeson breaks down our always-on social world -- where the experience we're having right now is less interesting than what we'll tweet about it later.
3Blue1Brown
Visualizing turbulence
A look at what turbulence is (in fluid flow), and a result by Kolmogorov regarding the energy cascade of turbulence.
TED-Ed
TED-ED: The fundamentals of space-time: Part 3 - Andrew Pontzen and Tom Whyntie
In the first two lessons of this series on space-time, we've dealt with objects moving at constant speeds, with straight world lines, in space-time. But what happens when you throw gravity into the mix? In this third and final lesson,...
TED-Ed
TED-Ed: Why does ice float in water? - George Zaidan and Charles Morton
Water is a special substance for several reasons, and you may have noticed an important one right in your cold drink: ice. Solid ice floats in liquid water, which isn't true for most substances. But why? George Zaidan and Charles Morton...
TED-Ed
TED-Ed: Why does your voice change as you get older? - Shaylin A. Schundler
The human voice is capable of incredible variety and range. As we age, our bodies undergo two major changes which explore that range. So how exactly does our voice box work, and what causes these shifts in speech? Shaylin A. Schundler...
SciShow
Why Do We Stretch in the Morning?
Humans (and our pets) frequently instinctively stretch as soon as we wake up. But why? What is happening in our bodies when we stretch and yawn to wake ourselves up?
TED-Ed
TED-Ed: Why sitting is bad for you - Murat Dalkilinc
Sitting down for brief periods can help us recover from stress or recuperate from exercise. But nowadays, our lifestyles make us sit much more than we move around. Are our bodies built for such a sedentary existence? Murat Dalkilin�c...
SciShow Kids
Why Do We Burp?
Everybody does it! But why does it happen? Jessi gives you a look at your digestive system, to discover why we sometimes get a case of the burps.