The Egyptian Book of the Dead: A guidebook for the underworld – Tejal Gala
View full lesson: http://ed.ted.com/lessons/the-egyptian-book-of-the-dead-tejal-gala Ancient Egyptians believed that in order to bec...
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How do pregnancy tests work? – Tien Nguyen
View full lesson: http://ed.ted.com/lessons/how-do-pregnancy-tests-work-tien-nguyen Over-the-counter pregnancy tests give potentiall...
Is marijuana bad for your brain? – Anees Bahji
Explore how marijuana’s two main active compounds, THC and CBD, affect your brain and body, and what risk factors to watch out for....
What makes the Great Wall of China so extraordinary – Megan Campisi and Pen-Pen Chen
View full lesson: http://ed.ted.com/lessons/what-makes-the-great-wall-of-china-so-extraordinary-megan-campisi-and-pen-pen-chen The G...
How a wound heals itself – Sarthak Sinha
View full lesson: http://ed.ted.com/lessons/how-a-wound-heals-itself-sarthak-sinha Our skin is the largest organ in our bodies, with...
What’s the difference between accuracy and precision? – Matt Anticole
View full lesson: http://ed.ted.com/lessons/what-s-the-difference-between-accuracy-and-precision-matt-anticole When we measure thing...
Cell vs. virus: A battle for health – Shannon Stiles
View full lesson: http://ed.ted.com/lessons/cell-vs-virus-a-battle-for-health-shannon-stiles All living things are made of cells. In...
Why the metric system matters – Matt Anticole
View full lesson: http://ed.ted.com/lessons/why-the-metric-system-matters-matt-anticole For the majority of recorded human history,...
Where did Russia come from? – Alex Gendler
View full lesson: http://ed.ted.com/lessons/where-did-russia-come-from-alex-gendler Russia is the biggest country in the world, span...
Plato’s Allegory of the Cave – Alex Gendler
View full lesson: http://ed.ted.com/lessons/plato-s-allegory-of-the-cave-alex-gendler Twenty four hundred years ago, Plato, one of h...