How long should your naps be? - Sara C. Mednick

A brief history of plural word...s - John McWhorter

View full lesson here: http://ed.ted.com/lessons/a-brief-history-of-plural-word-s-john-mcwhorter [http://ed.ted.com/lessons/a-brief-history-of-plural-word-s-john-mcwhorter] All it takes is a simple S to make most English words plural. But it hasn't always worked that way (and there are, of course, exceptions). John McWhorter looks back to the good old days when English was newly split from German -- and books, names and eggs were beek, namen and eggru! Lesson by John McWhorter, animation by Lippy. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

How long should your naps be? - Sara C. Mednick

Download a free audiobook version of "Take a Nap: Change Your Life" by Sara Mednick or Matthew Walker's "Why We Sleep" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed [https://www.audible.com/ted-ed] -- Your eyes get heavy and gradually close… But wait! It’s only lunch time and you still have so much to do. Would taking a nap help? Or would it derail your day? Well, that depends on a few things— especially what stages of sleep the nap includes. Sara C. Mednick details the cognitive benefits of napping, and explores the optimal length and time of day for a quick snooze. Lesson by Sara C. Mednick, directed by Qian Shi. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon [http://bit.ly/TEDEdPatreon] Check out our merch: http://bit.ly/TEDEDShop [http://bit.ly/TEDEDShop] ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter [http://bit.ly/TEDEdNewsletter] Follow us on Facebook: http://bit.ly/TEDEdFacebook [http://bit.ly/TEDEdFacebook] Find us on Twitter: http://bit.ly/TEDEdTwitter [http://bit.ly/TEDEdTwitter] Peep us on Instagram: http://bit.ly/TEDEdInstagram [http://bit.ly/TEDEdInstagram] ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/how-long-should-your-naps-be-sara-c-mednick [https://ed.ted.com/lessons/how-long-should-your-naps-be-sara-c-mednick] Dig deeper with additional resources: https://ed.ted.com/lessons/how-long-should-your-naps-be-sara-c-mednick#digdeeper [https://ed.ted.com/lessons/how-long-should-your-naps-be-sara-c-mednick#digdeeper] Check out our full book recommendations: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/copy-of-1985 [https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/copy-of-1985] and https://shop.ed.ted.com/products/why-we-sleep?_pos=1&_sid=c7f99e690&_ss=r [https://shop.ed.ted.com/products/why-we-sleep?_pos=1&_sid=c7f99e690&_ss=r] Animator's website: https://www.qianshi.art [https://www.qianshi.art] ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Anoop Varghese, David Yastremski, Zoë Tulip, B, Jason Harrison, Erica Guerrero, Richard Manklow, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Milo Vermeulen, Ryan Weiler, Jesse Lira, Ezekiel Raui, Itay Levi, Zongpu Kou, Cameron Chakraverty, Petr Vacek, Rhys Patterson, Dennis, Olivia Fu, Katrina Adams, Regina Post, Mary Collins, Kari Teffeau, clumsybunnie, Adam Leos, Jeremy Laurin, Cindy Lai, Liz, Bhargav Pandravada, Rajath Durgada Manjunath, Dan Nguyen, sarim haq, Chin Beng Tan, Alejandro Gomez, Tom Boman, Karen Warner, Isorn Sookwanish, Iryna Panasiuk, Diane Gallin, Aaron Torres, Vasundhar, Eric Braun, Denka Wee, Daru Bhargav an Sonja Worzewski. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Making a TED-Ed Lesson: Two ways to animate slam poetry

View full lesson: http://ed.ted.com/lessons/become-a-slam-poet-in-five-steps-gayle-danley [http://ed.ted.com/lessons/become-a-slam-poet-in-five-steps-gayle-danley] View original lesson: http://ed.ted.com/lessons/become-a-slam-poet-in-five-steps-gayle-danley [http://ed.ted.com/lessons/become-a-slam-poet-in-five-steps-gayle-danley] Slam poetry packs an emotional punch by using powerful verbal metaphors; animation can do the same using visual tools. TED-Ed animators show how two separate techniques -- rotoscoping and more traditional hand-drawn animation -- bring to life the multilayered process of becoming a slam poet. Lesson and animation by TED-Ed. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Meet the bluefin tuna, the toughest fish in the sea - Grantly Galland and Raiana McKinney

Discover the unique adaptations that make the Atlantic bluefin tuna one of the most dominant predators in the ocean. -- What’s as big as a polar bear, swallows its prey whole, and swims at forty miles an hour? It’s not a shark or a killer whale... it’s the Atlantic bluefin tuna— the largest and longest-lived of the 15 tuna species. Its unique set of adaptations make it one of the most dominant predators in the ocean. Grantly Galland and Raiana McKinney detail how these fish go from tiny hatchling to ocean giant. Lesson by Grantly Galland and Raiana McKinney, directed by Anna Benner. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon [http://bit.ly/TEDEdPatreon] Check out our merch: http://bit.ly/TEDEDShop [http://bit.ly/TEDEDShop] ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter [http://bit.ly/TEDEdNewsletter] Follow us on Facebook: http://bit.ly/TEDEdFacebook [http://bit.ly/TEDEdFacebook] Find us on Twitter: http://bit.ly/TEDEdTwitter [http://bit.ly/TEDEdTwitter] Peep us on Instagram: http://bit.ly/TEDEdInstagram [http://bit.ly/TEDEdInstagram] ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/meet-the-bluefin-tuna-the-toughest-fish-in-the-sea-grantly-galland-and-raiana-mckinney [https://ed.ted.com/lessons/meet-the-bluefin-tuna-the-toughest-fish-in-the-sea-grantly-galland-and-raiana-mckinney] Dig deeper with additional resources: https://ed.ted.com/lessons/meet-the-bluefin-tuna-the-toughest-fish-in-the-sea-grantly-galland-and-raiana-mckinney#digdeeper [https://ed.ted.com/lessons/meet-the-bluefin-tuna-the-toughest-fish-in-the-sea-grantly-galland-and-raiana-mckinney#digdeeper] Animator's website: https://annabennerstudio.com/ [https://annabennerstudio.com/] Sound design: https://www.tschernuth.com/ [https://www.tschernuth.com/] ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Amy, Michael Clement, Ghaith Tarawneh, Nathan Milford, Tomas Beckett, Alice Ice, Eric Berman, Kurt Paolo Sevillano, Xavi Ramos, Ron Kakar, Jennifer Heald, flóra lili donáti, Megulo Abebe, TAO7 HORUS, isolwi, Vedasheersh, Michael Chang, Waqar Sheikh, Alexander Gruber, Irene Y., Kate Sem, VPpurplebelt, Ujjwal Dasu, Theunis Groenewald, Minh Quan Dinh, Sylvain, Can Aydogmus, JasonD, Terran Gimpel, Gareth Thomas, Talia Sari, Phan Quang Lam, Katie McDowell, Allen, Sarat Chandra Vegunta, Mahina Bachiller, Bruce Vieira Lopes, Charmaine Hanson, Paul Aldred-Bann, Thawsitt, Jezabel, Abdullah Abdulaziz, Adriano Fontes, Xiao Yu, Melissa Suarez, SpartacusDMR, Brian A. Dunn, Francisco Amaya, Daisuke Goto and Matt Switzler. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]

Ultrasound surgery -- healing without cuts - Yoav Medan

Imagine having a surgery with no knives involved. At TEDMED, Yoav Medan shares a technique that uses MRI to find trouble spots and focused ultrasound to treat such issues as brain lesions, uterine fibroids and several kinds of cancerous growths. Talk by Yoav Medan. Learn more about your ad choices. Visit megaphone.fm/adchoices [https://megaphone.fm/adchoices]