Computer science professor Shimon Schocken is also an avid mountain biker. To share the life lessons he learned while riding, he began an outdoor program with Israel's juvenile inmates and was touched by both their intense difficulties...

When Joshua Prager was 19, a devastating bus accident left him a hemiplegic. He returned to Israel twenty years later to find the driver who turned his world upside down. In this mesmerizing tale of their meeting, Prager probes deep...

NASA has proposed a mission that would land on Europa to search for signs of life & we've learned something sad about one of our neighbors, Proxima b.

How To Go To Space (with XKCD!)

Mr. Andersen explains Hardy-Weinberg equilibrium and describes the bead lab.

Several rovers on Mars's surface are currently in operation, including one you might not have heard of: China’s Zhurong rover. It's already spent over a year on the Martian surface and is bringing us ever closer to understanding the...

Jakob Magolan is here to change your perception of organic chemistry. In an accessible talk packed with striking graphics, he teaches us the basics while breaking the stereotype that organic chemistry is something to be afraid of.

The group of bacteria known as Chlamydiae doesn't do much to endear itself to us since these bacteria can cause a variety of illnesses. But it turns out that we may have Chlamydiae to thank for life as we know it!

Imagine a neuroscientist who has only ever seen black and white things, but she is an expert in color vision and knows everything about its physics and biology. If, one day, she sees color, does she learn anything new? Is there anything...

Over 2,500 years ago, one of ancient Greece's most celebrated popstars and erotic poets enraptured listeners. The singer-songwriter offered a uniquely intimate perspective on love, passion, and longing, and was the first on record to...

Virtuoso Pamelia Kurstin performs and discusses her theremin, the not-just-for-sci-fi electronic instrument that is played without being touched. Songs include "Autumn Leaves," "Lush Life" and David Mash’s "Listen, Words Are Gone."

Why is it that every time you see an adorable puppy in the park or outside a cafe your voice suddenly jumps up about two octaves and you’re talking total gooey nonsense? If you watch this episode to find out, you can have a treat and...

The older the word, the longer (and more fascinating) the story. With roots in Old English, 'true' shares etymological ancestors with words like betroth and truce...but also with the word tree. In fact, trees have been metaphors for...

In this video Paul Andersen explains how chemical analysis is important in determining the composition, purity and empirical formula of a compound. An empirical formula determination problem is also included.

Most politicians choose their words carefully, to shape the reality they hope to create. But does it work? Etymologist Mark Forsyth shares a few entertaining word-origin stories from British and American history (for instance, did you...

Paul Andersen starts with a brief description of the history of life. He then discusses the seven characteristics of life and why viruses are not alive. He then describes the three domains in the current classification system and...

Do you mumble to yourself while looking for your keys, or pump yourself up in the morning with a bathroom mirror pep talk? It may actually be helpful,but only if you do it right.

Beyond giving the world dozens of English language masterpieces and inventing countless words (including the word countless), William Shakespeare, ever the overachieving bard, especially had a way with the romantic turn of phrase....

In this video Paul Andersen explains how thermodynamic and equilibrium reasoning can be related through changes in free energy and the equilibrium constant. When the delta G is negative the reaction shifts to the right or favors...

You might know of dyslexia as a reading disorder, but years of research suggests that people with dyslexia might struggle with processing letters because they also have trouble processing rhythm.

You’re on the internet, so you probably know that people sometimes claim to have been abducted by aliens. When researchers start to look closely at these stories and where they come from, they begin to realize that there might be...

It’s probably not a surprise that many ancient texts are a bit worn out and tattered, and that makes deciphering what they say quite a task. But with new computer tech and artificial intelligence, we are getting much clearer glimpses of...

In this fun, short talk from TEDYouth, lexicographer Erin McKean encourages — nay, cheerleads — her audience to create new words when the existing ones won’t quite do. She lists out 6 ways to make new words in English, from compounding...

Among the great poets of literary history, certain names like Homer, Shakespeare and Whitman are instantly recognizable. However, there's an early 20th century great poet whose name you may not know: Guillaume Apollinaire. Genevieve Emy...