Chemist Stephanie Kwolek was born #OTD in 1923. She invented Kevlar, used in high-strength / low-weight applications like body armor and airplane parts. She also invented the Nylon Rope Trick demo! 🧪 👩🔬 Images: DuPont/Stephanie Kwolek
Профиль
Robert McNees
Профиль VivelyPhysicist and Professor at a university in Chicago. I study black holes, quantum gravity, and cosmology. Rocky Top, Tar Heel. Reposts are spooky action at a distance. My views, not my employer's. https://jacobi.luc.edu https://mcnees.github.io
Marie Tharp was a guest in the excellent BBC series Earth Story. Available on DVD or on YouTube. Well worth a watch, it's one of the very best series on our planet and those who study it. www.bbc.co.uk/programmes/p...
Geologist Marie Tharp was born #OTD in 1920. She built the first accurate map of the Atlantic Ocean floor, discovering the Mid-Atlantic Ridge that provided evidence for seafloor spreading and plate tectonics. 🧪 👩🔬 Image: Lamont-Doherty Earth Observatory
Link to article (free): www.nytimes.com/1988/01/19/o...