The real lever of a meaningful life isn’t intelligence or hustle — it’s personal agency, says Cate Hall, former Supreme Court attorney and once the world’s top-ranked female poker player. Sharing her journey from the throes of addiction...

The coronavirus brought much of the world to a standstill, dropping carbon emissions by five percent. Al Gore says keeping those rates down is now up to us. In this illuminating interview, he discusses how the steadily declining cost of...

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. In this quick talk, visual artist Dread Scott tells the story of one of his most transgressive art installations,...

Developing a vaccine usually takes five to 10 years, costs about a billion dollars and has a failure rate of 93 percent. Under the pressure of the coronavirus pandemic, scientists are being asked to speed that timeline up to 12 to 18...

What accounts for our polarized public life, and how can we begin to heal it? Political philosopher Michael Sandel offers a surprising answer: those who have flourished need to look in the mirror. He explores how "meritocratic hubris"...

The family of giants you work for is throwing a fancy dinner party, but there’s a problem — the elder giant’s favorite shirt is wrinkled! To fix it, you’ll need to power up the giant iron. It needs two batteries to work, but the baby...

Lots of global problems seem intractable, but there’s a formula for success that we can follow.

Author and activist Isabel Allende discusses women, creativity, the definition of feminism -- and, of course, passion -- in this talk.

Luck is rarely a lightning strike, isolated and dramatic -- it's much more like the wind, blowing constantly. Catching more of it is easy but not obvious. In this insightful talk, Stanford engineering school professor Tina Seelig shares...

Astounding feats of animal memory.

Plenty of other planets in the Solar System have rings. So why not Earth?

Is it better to be lucky or good? Should we trust our gut feelings or rely on probabilities and careful analysis when making important decisions? In this quick talk, professional poker player Liv Boeree shares three strategies she's...

UPDATE: We got a couple of things wrong when it comes to gravity (particularly that it has nothing to do with photons). Science is working tirelessly night and day to disprove its own theories about how the universe works (or at least,...

Chance plays a far bigger role in life than we're willing to admit, says psychologist Barry Schwartz. Of course, working hard and following the rules can get you far -- but the rest could boil down to simple good fortune. Schwartz...

Is luck real? It might feel like a mystical force tugging us toward good or bad fortune, but it turns out luck is really where probability runs into the human mind. That's right, there's a scientific side to luck, and if you study a few...

Ever wondered what happens to your body if you don't get enough water? Our bodies are mostly water by weight, so in today's episode of SciShow Hank explains what happens to your body as it starts to shut down when you go without that...

The idea of putting blood into a person was a radical one when it was first attempted 350 years ago, but today, more than 15 million pints of blood are donated each year in the U.S. to be used in transfusions to over 5 million patients. ...

A number of studies show that luck is more of a self-fulfilling prophecy, and you can actually create it yourself.

Can two people who make the same bad decision bear different levels of moral responsibility? Today, we try to address this question with the concept of moral luck. Hank explains the difference between moral and causal responsibility, and...

Discover what happens when random events meet allele frequencies: genetic drift! This Amoeba Sisters video also discusses the bottleneck and founder effect as well as contrasts genetic drift with natural selection. Table of Contents:...

You've probably heard the word "Entrepreneur" thrown around a lot in business. It conjures images of Elon Musk, Bill Gates, or Oprah Winfrey. But, it goes way beyond that. In this episode of Crash Course Business: Entrepreneurship, Anna...

Could we have a possible 9th Planet? Hank Green tells us what we think we know with this elusive object.

At face value, the lines between verbal irony, sarcasm, and compliments can be blurry. After all, the phrase 'That looks nice' could be all three depending on the circumstances. In the final of a three part series on irony, Christopher...

This video is answering the question of what do Brazilian people wear on New Year's.