How do you think about the column space and null space of a matrix visually? How do you think about the inverse of a matrix?

Got milk? Fact is, most people don't -- and shouldn't -- because for them, ice cream and milkshakes are basically toxic. So why can some people drink milk and survive? Turns out they're mutants! SciShow explains.

If we can unlock the full potential of our cities, we can minimize the price the planet pays for hosting us in our growing numbers, says Marvin Rees, the Mayor of Bristol, UK, who understands deeply how cities can help (or hurt) the...

Flanked by two powerful nations, the English Channel has long been one of the world’s most important maritime passages. Yet for most of its history, crossing was a dangerous prospect. Engineers proposed numerous plans for spanning the...

In a culture where being social and outgoing are prized above all else, it can be difficult, even shameful, to be an introvert. But, as Susan Cain argues in this passionate talk, introverts bring extraordinary talents and abilities to...

Nearly all life on Earth is ultimately powered by light. But many creatures have learned how to make their own. This week we investigate the beautiful phenomenon of bioluminescence. From blinking fireflies on summer nights to glowing...

Human beings and computers alike share the challenge of how to get as much done as possible in a limited time. Over the last fifty or so years, computer scientists have learned a lot of good strategies for managing time effectively - and...

Learn about some new sea creatures that recently made their debut to the land world!

Hank introduces us to that great mathematical mind, Alan Turing, who, as an openly gay man in the early 20th century faced brutal prejudice that eventually led to his suicide, despite being a genius war hero who helped the Allies defeat...

Rainforest Edition: Ants in The Rainforest.

Over the past 20 years, dinosaurs of all types and sizes have been found with some sort of fluff or even full-on plumage. These fuzzy discoveries have raised a whole batch of new questions so we're here to tell you everything we know...

Mapping apps help us find the fastest route to where we’re going. But what if we’d rather wander? Researcher Daniele Quercia demos “happy maps” that take into account not only the route you want to take, but how you want to feel along...

Finding a red nugget galaxy is like discovering a time capsule from the early universe.

Be the hit of your party and learn how to pour the perfect beer-- (with the additional party trick of knowing the chemistry behind why, of course!)

Being a parent requires a lot of time and energy, but some animals are extremely devoted to caring for their young, and these five might not be the ones you would expect.

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You aren't the only animal with a pantry!

They have some of the best caterpillars in Peru. The best.

Jumping into a refreshingly cold body of water on a hot summer day can feel wonderful, except for your nose. Why does it hurt so much when you get water up your nose?

Have you ever wondered why leaves are green and not red, blue, or even black? We did too!

Turns out humans aren't the only animals that can medicate themselves - many other animals have found ways to deal with illness by using natural remedies. Hank will tell you about some of the most interesting methods animals have found...

Artist Tony Luciani was testing out a new camera when his 91-year-old mother, Elia, snuck into the background of his photos. The spontaneous images that resulted sparked a years-long collaboration, with Luciani documenting his mom's life...

Hank uses a favorite subject of the YouTube community - the potato gun - to teach us about the principles of pneumatics, which use the potential energy of compressed gas to do work in lots of useful machines every day.

October 11, 2017 is National Fossil Day! Kallie Moore, the collections manager at UM’s Paleontology Center, talks to Hank today about why fossils are important, and how you can get involved in this national holiday! (Psst. at 12:20,...

In war we often see only the frontline stories of soldiers and combat. AT TEDGlobal 2010, Zainab Salbi tells powerful "backline" stories of women who keep everyday life going during conflicts, and calls for women to have a place at the...