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01:49 At first, Scandinavians incorporated this new technology by replacing their loose paddles with anchored oars. This change hugely improved the crew’s efficiency, but also required stronger ships. So boat builders began to use iron nails for fasteners rather than sewing. They abandoned the log boat base for a keel plank, and the boats became higher and more seaworthy. But these early ships r..

00:39 The formidable Viking longship had its origins in the humble dugout canoe, or log boat. For millennia, the inhabitants of Scandinavia had used these canoes for transportation. Dense forests and tall mountains made overland travel difficult, but long coastlines and numerous rivers, lakes, and fjords provided a viable alternative. The first canoes were simply hollowed out logs rowed with pad..

Angel Chang The wildly complex anatomy of a sneaker https://www.ted.com/talks/angel_chang_the_wildly_complex_anatomy_of_a_sneaker The wildly complex anatomy of a sneaker Australians call them "runners." The British know them as "trainers." Americans refer to them as "sneakers." Whatever you call them, these casual shoes are worn by billions of people around the world. Today, roughly 23 billion s..

Angel Chang The wildly complex anatomy of a sneaker 03:26 The dispersion of factories fuels another problem as well: labor abuse. Most brands don’t own or operate their factories, so the plants they work with are in countries with little to no worker protection laws. As a result, many laborers earn below the living wage, and are exposed to harmful chemicals, like toxic glue fumes. 03:49 When man..

Angel Chang The wildly complex anatomy of a sneaker https://www.ted.com/talks/angel_chang_the_wildly_complex_anatomy_of_a_sneaker The wildly complex anatomy of a sneaker Australians call them "runners." The British know them as "trainers." Americans refer to them as "sneakers." Whatever you call them, these casual shoes are worn by billions of people around the world. Today, roughly 23 billion s..

Jennifer 8. Lee Why 1.5 billion people eat with chopsticks 01:54 There's evidence of chopsticks as long ago as the Shang dynasty, which is about 3000 years ago, and they loved tripods during the Shang dynasty. So when you cook with these big tripods, chopsticks were actually really useful, because it was a way for you to stir and to reach without getting burned as the water was boiling in these ..

Jennifer 8. Lee Why 1.5 billion people eat with chopsticks 00:58 Chopsticks are used in a huge portion of the world, across much of Asia, about 1.5 billion people are covered in the chopsticks sphere. Different cultures have slightly different variations of chopsticks. Chinese chopsticks will tend to be long and round, Korean chopsticks are flatter and often made of metal and Japanese chopsticks..

Jennifer 8. Lee Small Thing Big Idea Why 1.5 billion people eat with chopsticks https://www.ted.com/talks/jennifer_8_lee_why_1_5_billion_people_eat_with_chopsticks Why 1.5 billion people eat with chopsticks Author Jennifer 8. Lee explains how the chopstick spread from the East to the West -- and was designed to give you the perfect bite. www.ted.com 00:15 Chopsticks are a pair of two long sticks..