TED-Ed
TED-Ed: Why haven't we cured arthritis? | Kaitlyn Sadtler and Heather J. Faust
The bad backs, elbow pain, and creaky knees so common in older people often aren't just "old age." In fact, the source of this stiffness plagues many young people as well. The culprit is arthritis: a condition that affects over 90...
3Blue1Brown
How pi was almost 6.283185
Happy pi day! Did you know that in some of his notes, Euler used the symbol pi to represent 6.28..., before the more familiar 3.14... took off as a standard?
TED Talks
Peter Saul: Let's talk about dying
We can't control if we'll die, but we can "occupy death," in the words of Peter Saul, an emergency doctor. He asks us to think about the end of our lives -- and to question the modern model of slow, intubated death in hospital. Two big...
TED Talks
Amy Lockwood: Selling condoms in the Congo
HIV is a serious problem in the DR Congo, and aid agencies have flooded the country with free and cheap condoms. But few people are using them. Why? "Reformed marketer" Amy Lockwood offers a surprising answer that upends a traditional...
TED Talks
Jean-Baptiste Michel + Erez Lieberman Aiden: What we learned from 5 million books
Have you played with Google Labs' Ngram Viewer? It's an addicting tool that lets you search for words and ideas in a database of 5 million books from across centuries. Erez Lieberman Aiden and Jean-Baptiste Michel show us how it works,...
TED Talks
Christopher Soghoian: How to avoid surveillance ... with the phone in your pocket
Who is listening in on your phone calls? On a landline, it could be anyone, says privacy activist Christopher Soghoian, because surveillance backdoors are built into the phone system by default, to allow governments to listen in. But...
SciShow
Water on Ganymede, and NASA Needs Your Help!
Which is a bigger deal to you? The discovery that there's probably more water on Jupiter's moon Ganymede than all the oceans on Earth? Or the fact that you can now help NASA find asteroids? Learn about both, then decide for yourself!
TED Talks
Soraya Chemaly: The power of women's anger
Anger is a powerful emotion -- it warns us of threat, insult, indignity and harm. But across the world, girls and women are taught that their anger is better left unvoiced, says author Soraya Chemaly. Why is that, and what might we lose...
SciShow
Where Do Camels Store Their Water?
When camels drink, they do so at a rate that would kill most other animals. But where does all of that water go? Hint: It's not their humps!
SciShow
Meet Our Nitrogen-Breathing Bacterial Relative
Oxygen is pretty great stuff, but this recently discovered organism couldn’t care less about oxygen. It breathes nitrogen and may offer a window into how the types of cells in OUR bodies may have evolved billions of years ago.
SciShow
The Weirdness of Jupiter's Great Red Spot
It's Jupiter's beauty mark - but do you know where the Great Red Spot came from, or how long it's been there, or how long it'll continue to exist? Well, neither do scientists, really.
TED-Ed
TED-Ed: Why are sloths so slow? - Kenny Coogan
Sloths spend most of their time eating, resting, or sleeping; in fact, they descend from their treetops canopies just once a week, for a bathroom break. How are these creatures so low energy? Kenny Coogan describes the physical and...
TED Talks
TED: The secrets of spider venom | Michel Dugon
Spider venom can stop your heart within minutes, cause unimaginable pain -- and potentially save your life, says zoologist Michel Dugon. As a tarantula crawls up and down his arm, Dugon explains the medical properties of this potent...
TED Talks
Graham Hawkes: A flight through the ocean
Graham Hawkes takes us aboard his graceful, winged submarines to the depths of planet Ocean (a.k.a. "Earth"). It's a deep blue world we landlubbers rarely see in 3D.
TED Talks
Brian Cox: What went wrong at the LHC
In this short talk from TED U 2009, Brian Cox shares what's new with the CERN supercollider. He covers the repairs now underway and what the future holds for the largest science experiment ever attempted.
SciShow
Why Does Everything Stink Less in Winter?
There are lots of reasons stinky things don’t smell as strong in cold weather. You can maybe guess some of the reasons, but others may surprise you!
SciShow
What Causes Dimples?
Dimples! They're so cute, but surprisingly mysterious! What causes them naturally and how can we make them happen?
MinuteEarth
The Freshwater Paradox
Even though less than 1% of Earth's water is freshwater, it's the home for 50% of fish species. This is the Freshwater Paradox.
TED Talks
Sinan Aral: How we can protect truth in the age of misinformation
Fake news can sway elections, tank economies and sow discord in everyday life. Data scientist Sinan Aral demystifies how and why it spreads so quickly -- citing one of the largest studies on misinformation -- and identifies five...
SciShow
You're Losing Bones Right Now
You would think that almost everyone has the same exact number of bones in their body, but that number is different, and changing, in everyone!
TED Talks
TED: The global food waste scandal | Tristram Stuart
Western countries throw out nearly half of their food, not because it’s inedible -- but because it doesn’t look appealing. Tristram Stuart delves into the shocking data of wasted food, calling for a more responsible use of global resources.
TED Talks
Seth Berkley: The troubling reason why vaccines are made too late ... if they're made at all
It seems like we wait for a disastrous disease outbreak before we get serious about making a vaccine for it. Seth Berkley lays out the market realities and unbalanced risks behind why we aren't making vaccines for the world's biggest...
SciShow
The Great Attractor: A Truly Massive Mystery
There's something out there SO massive that it's pulling on every object within hundreds of millions of light years. But we can't see it! So what DO we know? Today on SciShow Space, Reid Reimers tells us more about the Great Attractor.