TED-Ed

Why is cotton in everything? – Michael R. Stiff

Why people fall for misinformation – Joseph Isaac

The continents are moving. When will they collide? – Jean-Baptiste P. Koehl

Making sense of a visible quantum object – Aaron O’Connell

Pavlovian reactions aren’t just for dogs – Benjamin N. Witts

A guide to the energy of the Earth – Joshua M. Sneideman

What is chemical equilibrium? – George Zaidan and Charles Morton

Why do we feel nostalgia? – Clay Routledge

The epic of Gilgamesh, the king who tried to conquer death – Soraya Field Fiorio

Gravity and the human body – Jay Buckey

Newton’s 3 Laws, with a bicycle – Joshua Manley

Can we create the “perfect” farm? – Brent Loken

The punishable perils of plagiarism – Melissa Huseman D’Annunzio

How many ways are there to prove the Pythagorean theorem? – Betty Fei

Who controls the world? – James B. Glattfelder

The myth behind the Chinese zodiac – Megan Campisi and Pen-Pen Chen

Sex Determination: More Complicated Than You Thought

Who were the Vestal Virgins, and what was their job? – Peta Greenfield

Which is better: Soap or hand sanitizer? – Alex Rosenthal and Pall Thordarson

Why should you read “Hamlet”? – Iseult Gillespie

Why do we have crooked teeth when our ancestors didn’t? – G. Richard Scott

Why do blood types matter? – Natalie S. Hodge

Do mosquitos actually bite some people more than others? – Maria Elena De Obaldia

The beneficial bacteria that make delicious food – Erez Garty

The dark history of IQ tests – Stefan C. Dombrowski

How the Suez Canal changed the world – Lucia Carminati

The greatest mathematician that never lived – Pratik Aghor

The dark history of zombies – Christopher M. Moreman

How aspirin was discovered – Krishna Sudhir

Why should you read Kurt Vonnegut? – Mia Nacamulli

Looks aren’t everything. Believe me, I’m a model – Cameron Russell

The Boltzmann brain paradox – Fabio Pacucci

What is a gig economy?

The myth of Pandora’s box – Iseult Gillespie

Einstein’s twin paradox explained – Amber Stuver

Is there any truth to the King Arthur legends? – Alan Lupack

Inventing the American presidency – Kenneth C. Davis

How to biohack your cells to fight cancer – Greg Foot

A day in the life of an ancient Egyptian doctor – Elizabeth Cox

Can you solve the cuddly duddly fuddly wuddly riddle? – Dan Finkel