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Video
Margaret Wertheim leads a project to re-create the creatures of the coral reefs using a crochet technique invented by a mathematician -- celebrating the amazements of the reef, and deep-diving into the hyperbolic geometry underlying coral creation.
- Subjects:
- Mathematics and Statistics
- Keywords:
- Crocheting Coral reef ecology
- Resource Type:
- Video
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Video
Traveling is extremely arduous for microscopic sperm -- think of a human trying to swim in a pool made of...other humans. We can compare the journey of a sperm to that of a sperm whale by calculating the Reynolds number, a prediction of how fluid will behave, often fluctuating due to size of the swimmer. Aatish Bhatia explores the great (albeit tiny) sperm's journey.
- Subjects:
- Physics
- Keywords:
- Fluid dynamics Sperm whale Spermatozoa
- Resource Type:
- Video
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Video
Whether or not you realize it, surfers are masters of complicated physics. The science of surfing begins as soon as a board first hits the water. Surfers may not be thinking about weather patterns in the Pacific, tectonic geology or fluid mechanics, but the art of catching the perfect wave relies on all these things and more. Nick Pizzo dives into the gnarly physics that make surfing possible.
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Video
As we keep pumping carbon dioxide into the atmosphere, more of it is dissolving in the oceans, leading to drastic changes in the water's chemistry. Triona McGrath researches this process, known as ocean acidification, and in this talk she takes us for a dive into an oceanographer's world. Learn more about how the "evil twin of climate change" is impacting the ocean -- and the life that depends on it.
- Subjects:
- Environmental Sciences and Chemistry
- Keywords:
- Marine pollution Oceanography
- Resource Type:
- Video
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Video
Welcome to Crash Course Geography hosted by Alizé Carrère! This course with be split into two parts. In the first half, we will focus on physical geography or the processes and phenomena of the physical world both above and below the Earth's surface. We'll ask questions like, "why is the seafloor so young when the Earth is so old?" or try to identify why winds and ocean currents are so important to life on Earth. Then we'll turn our focus to human geography and explore the ways people occupy the Earth's surface. Like how we've moved, settled, and used the land, resources and space. But ther'e not always a clear line dividing the physical and human, because really, geography is telling the story of the Earth. We'll hope you'll join us on this journey starting November 30, 2020!
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Video
So you've heard about Global Climate Change, and how it's causing our sea level to rise, but do you know the real reasons why? Find out how the properties of water make it susceptible to changes in temperature, and how this can change the globe.
- Course related:
- LSGI1D03 Living on a Dynamic Earth
- Subjects:
- Environmental Sciences
- Keywords:
- Expansion (Heat) Sea level -- Environmental aspects Climatic changes
- Resource Type:
- Video
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Others
Washington D.C.'s world-class National Museum of Natural History is one great museum that offers an amazing virtual tour. It is one of the most popular museums in the world, and its virtual tour lets you see its amazing exhibits from the comfort of your own home.While not quite the same as actually visiting it for yourself, their virtual tour takes you on a 360-degree tour around the museum, starting at its rotunda. Some of the highlights include the Hall of Mammals, Insect Zoo, and its Dinosaurs and Hall of Palaeobiology.One real benefit of virtual tours like this is the ability to see some of their great past exhibits that are now long gone.
- Keywords:
- Natural history museums National Museum of Natural History (U.S.) Exhibitions
- Resource Type:
- Others