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15:14

Arthur Benjamin

A performance of "Mathemagic"

Posted Dec 2007
5:13

Emmanuel During

What causes sleepwalking?

Posted Oct 2022
7:24

Hailey Hardcastle

Why students should have mental health days

Posted May 2020
4:01

Zoe Pierrat

Earth's mysterious red glow, explained

Posted Sep 2021
4:32

Hector Lanz

How do focus groups work?

Posted Sep 2018
4:52

Chase LaDue and Bruce A. Schulte

The incredible, bendable, twistable, expandable elephant trunk

Posted Mar 2021
6:00

Amber Stuver

Einstein's twin paradox explained

Posted Sep 2019
0:00

Steve Rothstein

Would you raise the bird that murdered your children?

Posted Dec 2021
18:33

Stuart Firestein

The pursuit of ignorance

Posted Sep 2013
5:15

Alex Gendler

Demolition, disease, and death: Building the Panama Canal

Posted Apr 2021
0:00

Emma Bryce

Why do cats have vertical pupils?

Posted Jan 2022
6:24

Alex Rosenthal

The Chasm | Think Like A Coder, Ep 6

Posted Jan 2020
4:38

Jonathan Smith

How do governments create money out of thin air?

Posted Jul 2021
4:57

Alex Gendler

How one design flaw almost toppled a skyscraper

Posted May 2021
5:03

TED-Ed

What if you experienced every human life in history?

Posted Feb 2023
4:49

Alex Gendler

Why doesn't the Leaning Tower of Pisa fall over?

Posted Dec 2019
4:29

Alex Worsnip

Ethical dilemma: Who should you believe?

Posted Apr 2022
5:24

Noah Charney

Can you guess what's wrong with these paintings?

Posted Aug 2022
4:03

Noa Kageyama and Pen-Pen Chen

How to stay calm under pressure

Posted Sep 2018
4:39

Alex Gendler

Why are airplanes slower than they used to be?

Posted Apr 2021
4:41

Cella Wright

This sea creature breathes through its butt

Posted Apr 2020
7:58

Alex Rosenthal

The Tower of Epiphany | Think Like A Coder, Ep 7

Posted Feb 2020
4:28

Gabriel Prieto

A day in the life of a Peruvian shaman

Posted Jun 2020
5:21

Rod Phillips

A brief history of divorce

Posted Jan 2021
6:00

Kate Slabosky

Can the ocean run out of oxygen?

Posted Aug 2020
5:54

Chris Anderson

Why can't we see evidence of alien life?

Posted Mar 2012
5:20

Alex Gendler

A brief history of chess

Posted Sep 2019
3:41

Christina Greer

Gerrymandering: How drawing jagged lines can impact an election

Posted Oct 2012
4:02

Peter Paccone

Why is the US Constitution so hard to amend?

Posted May 2016
5:11

Ilan Stavans

Who decides what's in the dictionary?

Posted May 2021
17:43

Luisa Neubauer

Why you should be a climate activist

Posted Sep 2019
10:01

John McWhorter

4 reasons to learn a new language

Posted Oct 2016
4:51

Philip Freeman

The rise and fall of the Celtic warriors

Posted Jul 2020
3:21

Jacob Soboroff

Why do Americans vote on Tuesdays?

Posted Oct 2019
5:14

Shannon N. Tessier

Can you freeze your body and come back to life?

Posted Feb 2023
5:10

Karlos Hill and Soraya Field Fiorio

When did slavery actually end in the United States?

Posted Feb 2023