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Cardiologist Answers Heart Questions From Twitter

AdultsEducationHealthHuman
Cardiologist Dr. Sunil Rao answers your questions about the heart from Twitter. How do you measure your maximum heart rate?

We're Probably Going to Cure MS

AdultsHealthHistoryScience...
You've probably heard of multiple sclerosis, especially if you're a fan of The West Wing. But can we ever cure MS? Yes. But also, no. But also, probably? It's complicated.

Why Do All YouTube Videos Look Alike?

AdultsCreativityEducationMedia...
Many crustaceans from all sorts of starting points evolve to end up looking similar, likely due to outside pressures. That’s sort of like what happens with YouTube videos.

The Paradox of an Infinite Universe

AdultsEducationScienceSpace...
What is outside of the universe? We know that the universe had a beginning 14 billion years ago and that it has been expanding ever since.

3 Mysteries of the Universe

AdultsEducationScienceSpace
We're still in the dark about what 95 percent of our universe is made of — and the standard model for understanding particle physics has hit a limit.

What Happens AFTER Nuclear War?

AdultsEducationScienceWorld...
This video was made possible through a grant by Open Philanthropy.

Why Are All Humans Unique? Meiosis: Crash Course Biology

AdultsBiologyHumanScience...
Ever wonder why we aren’t exact clones of our parents, or why siblings aren’t exactly alike? The reason traces back to meiosis. In this episode of Crash Course Biology, we’ll discover how egg and sperm cells get made and learn why you’re a totally unique remix of your parents’ DNA.

Why Climbers Trust Rubber With Their Lives

AdultsEducationLifeScience...
Why is rubber so “sticky”? Why does rubber consistently have one of the highest coefficients of friction?

Why Does Everything Decay Into Lead

AdultsEducationHistoryScience...
If you look at a copy of the periodic table, you might notice that basically every element after lead is labelled as radioactive.

Did The Future Already Happen? - The Paradox of Time

AdultsCreativityEducationScience...
Is your future already written? Do your past, present, and future all exist right now? Surprisingly, the answer could be yes.

6 Tips on Being a Successful Entrepreneur | John Mullins | TED

AdultsEducationHumanLife...
Sometimes, you need to break the rules to innovate — but which ones? Entrepreneurship professor John Mullins shares six counter-conventional mindsets for entrepreneurs looking to think strategically, navigate challenges and change the world.

Primitive Technology: Crab and Fish Trap

AdultsConstructionCreativityEducation...
I made a fish trap from cane and tested it over the course of a year catching various aquatic animals.

How Do We Get Energy? (Chemical Reactions): Crash Course Biology #26

AdultsEducationScienceBiology
Cells need energy to power the chemical reactions that keep their microscopic cities running, and most of that energy comes from a chemical called ATP.

Did The Future Already Happen? - The Paradox of Time

AdultsEducationScienceSelf...
Is your future already written? Do your past, present, and future all exist right now? Surprisingly, the answer could be yes.

Can a Simple Brick Be the Next Great Battery?

AdultsEducationScienceTechnology...
The world relies on manufacturing, and manufacturing relies on heat — a massive contributor to global carbon emissions, responsible for a quarter of the world's fossil fuel use.

Why We Need To Teach Astronomy

AdultsEducationHumanScience...
People don’t understand the scale of the Universe.

What The Prisoner's Dilemma Reveals About Life, The Universe, and Everything

AdultsEducationPsychologyScience...
This is a video about the most famous problem in Game Theory, the Prisoner’s Dilemma.

A Tour of the Cell: Crash Course Biology #23

AdultsBiologyEducationHuman...
The cell is the basic unit of life, and our understanding of it has advanced as science, and the tools available to scientists, has advanced.

This Nuclear Conspiracy Theory is CRAZY

AdultsEducationPhysicsScience...
When we published a video from Hiroshima, a new kind of conspiracy theorist crawled out of the woodwork.

The largest river on Earth is actually in the sky - Iseult Gillespie

AdultsEducationSpaceWorld...
Explore the Amazon rainforest’s flying rivers, and dig into why these invisible waterways are essential to life on Earth.

How To Destroy The Universe

AdultsEducationScienceSpace...
The universe is going to die one day, and a fight between two titans will decide our cosmic fate.