Where is home? – Pico Iyer
More and more people worldwide are living in countries not considered their own. Writer Pico Iyer — who himself has three or f...
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Where we get our fresh water – Christiana Z. Peppard
View full lesson: http://ed.ted.com/lessons/where-we-get-our-fresh-water-christiana-z-peppard Fresh water accounts for only 2.5% of...
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Which is better: Soap or hand sanitizer? – Alex Rosenthal and Pall Thordarson
Dig into the science of how soap breaks down a coronavirus, and the effectiveness of hand sanitizer against a viral outbreak. —...
Which is stronger: Glue or tape? – Elizabeth Cox
Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/which-is-stronger-glue-or-tap...
Which sunscreen should you choose? – Mary Poffenroth
View full lesson: http://ed.ted.com/lessons/which-sunscreen-should-you-choose-mary-poffenroth Sunscreen comes in many forms, each wi...
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Which voting system is the best? – Alex Gendler
Dive into four different voting systems: plurality, instant runoff, tactical, and the Condorcet method, and find out which is faires...
Who am I? A philosophical inquiry – Amy Adkins
View full lesson: http://ed.ted.com/lessons/who-am-i-a-philosophical-inquiry-amy-adkins Throughout the history of mankind, the subje...
Who built Great Zimbabwe? And why? – Breeanna Elliott
View full lesson: http://ed.ted.com/lessons/who-built-great-zimbabwe-and-why-breeanna-elliott Stretched across a tree-peppered expan...
Who controls the world? – James B. Glattfelder
James Glattfelder studies complexity: how an interconnected system — say, a swarm of birds — is more than the sum of its...
Who is Alexander von Humboldt? – George Mehler
View full lesson: http://ed.ted.com/lessons/who-is-alexander-von-humboldt-george-mehler Have you heard of Alexander von Humboldt? No...