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TED-Ed · 发布于 2024年8月15日
Explore the chemistry behind what makes kevlar so strong, and how this essential synthetic fiber was invented. -- By 1975, Richard Davis had been shot at close range 192 times. But not only was he completely healthy, each of those bullets were part of a demonstration to sell his new product: the bulletproof vest. So, how does such a light, flexible piece of clothing stop a bullet? The secret was a synthetic fiber material invented a decade earlier. Max G. Levy explores the incredible strength of kevlar. Lesson by Max G. Levy, directed by Vitalii Nebelskyi, and action creative agency. Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://bit.ly/TEDEdPatreon Check out our merch: http://bit.ly/TEDEDShop ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://bit.ly/TEDEdNewsletter Follow us on Facebook: http://bit.ly/TEDEdFacebook Find us on Twitter: http://bit.ly/TEDEdTwitter Peep us on Instagram: http://bit.ly/TEDEdInstagram ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/how-do-bulletproof-vests-work-max-g-levy Dig deeper with additional resources: https://ed.ted.com/lessons/how-do-bulletproof-vests-work-max-g-levy/digdeeper Animator's website: https://www.and-action.net ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Michel-Ange Hortegat, Enes Kirimi, Amaury BISIAUX, ND, Samyogita Hardikar, Vanessa Graulich, Vandana Gunwani, Abdulmohsin Almadi, AJ Lyon, Geoffrey Bultitude, Mi Mi, Thomas Rothert, Brian Elieson, Oge O, Weronika Falkowska, Nevin Spoljaric, Sid Chanpuriya, Anoop Varghese, David Yastremski, Noah Webb, Roberto Chena, Oliver Koo, Luke Pisano, Andrea Gordon, Aleksandar Donev, Nicole Klau Ibarra, Jesse Lira, Ezekiel Raui, Petr Vacek, Dennis, Olivia Fu, Kari Teffeau, Cindy Lai, Rajath Durgada Manjunath, Dan Nguyen, Chin Beng Tan, Tom Boman, Karen Warner, Iryna Panasiuk, Aaron Torres, Eric Braun, Sonja Worzewski, Michael Clement, Adam Berry, Ghaith Tarawneh, Nathan Milford, Tomas Beckett, Alice Ice, Eric Berman and Kurt Paolo Sevillano.