After having solved the small matter of evolution by natural selection - becoming one of the most famous scientists in the world in the process - Charles Darwin turned his focus to a different personal obsession…

X is everywhere and it’s probably thanks to math. But why is x the symbol for the unknown?

Sometimes, an ancient document is lost to history. Sometimes, you find it covered in mold and written over by an ancient scribe. Fortunately, thanks to science, lost doesn't quite mean what it used to.



Hosted by: Stefan Chin...

Leadership isn’t about a title or position — it’s about generosity, says organizational expert Joe Davis. Drawing on his extensive experience as a people manager, he shares three essential tips for leaders to unlock the potential of...

Where do you draw the line between work and life? Writer Simone Stolzoff explores the problem with defining yourself by your job — and shows what it takes to reclaim your time and sense of meaning beyond the office.

You can't just "find" motivation, says scientist Ayelet Fishbach — you have to learn how to motivate yourself. She shares a handful of tips backed by 20 years of motivation research, offering surprisingly simple wisdom on how to optimize...

Why The Full Moon is Better in Winter

If the earth is spinning to the east at 1000 miles per hour... why can't we fly west more easily?

Why is the Sun Yellow and the Sky Blue

What IS Angular Momentum?

Is the Universe Entirely Mathematical feat. Max Tegmark

How To Go To Space (with XKCD!)

How Long Can You Balance a Pencil

Concrete doesn't dry - it sets!

The Secret Social Life of Plants

Why Only Some Monkeys Have Awesome Tails

As a self-proclaimed radical street librarian, Storybook Maze makes books appear where they're scarce. Through initiatives like free, public book vending machines and street corner story times, she eliminates book deserts — or areas with...

What challenges lie ahead of a staggering 12,700-kilometer paddle around the entire continent of Australia? Crocodiles and sharks were just the beginning, says Ironwoman Bonnie Hancock. Reflecting on her remarkable feat of becoming the...

Rosalind Franklin was a British scientist who helped discover the structure of DNA, but you most likely haven't heard of her. Hank will attempt to fix this gap in your knowledge on today's SciShow: Great Minds

Can humans really feel temperature?

With levity and profound insight, artist Maira Kalman reflects on life, death, dinner parties, not knowing the right answers, the joys of eating a hot dog from a street vendor and more. This talk, interwoven with her delightful...

Air. I bet you never even notice that it’s there. Yet you are swimming in an ocean of it every day. If there’s a literal ton of air pressing down on you all the time, so why don’t we feel it? We look back at the history of physics to...

Scientists found, on a Kenyan plateau, a tree and a monkey that you might just know. But humans make changes, as we often do, and now these small creatures may soon fade from view.

Musty, with hints of vanilla, coffee, and maybe fresh cut grass-- why do old books smell the best?