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| Name | Marie Tharp: Uncovering the Secrets of the Ocean Floor - with Helen Czerski |
| Video Uploader | Video From The Royal Institution |
| Upload Date | This Video Uploaded At 16-11-2016 09:16:35 |
| Video Discription | Continental drift is common knowledge now, but when the idea was first proposed it was revolutionary. Helen Czerski tells the story of how the maps of one of history’s finest cartographers shifted our view of the planet. Subscribe for new science videos each week: http://bit.ly/RiSubscRibe In the early 20th century, Alfred Wegener proposed a revolutionary idea: that the Earth’s continents were once joined together, and had gradually moved apart. The idea contradicted almost everything scientists thought at the time, and it took the detailed work of a brilliant cartographer to prove him right. Conventional ideas held that the ocean floors were flat, featureless planes. As expeditions started to go around the world collecting ocean depth measurements, Marie Tharp – not allowed to join the expeditions herself – processed the data and began to craft detailed, revealing maps of the hidden ocean depths. She discovered that the ocean floor was in fact a complex assortment of peaks and troughs. In particular, her profiles revealed stark rift valleys, which supported Wegener’s controversial ideas. Even then, it took a long time to convince the scientific community that her findings were correct. Eventually, however, she was proved right, and Marie Tharp took her rightful place as one of history’s finest cartographers. Subscribe for regular science videos: http://bit.ly/RiSubscRibe The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter |
| Category | Science & Technology |
| Tags | Ri | Royal Institution | continental drift | marie tharp | plate tectonics | science | history | women in science | women in stem | oceanography | geology | mid atlantic ridge | cartography | maps | histsci |
