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2019
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Video
Resource inequality is one of our greatest challenges, but it's not unique to humans. Like us, mycorrhizal fungi that live in plant and tree roots strategically trade, steal and withhold resources, displaying remarkable parallels to humans in their capacity to be opportunistic (and sometimes ruthless) -- all in the absence of cognition. In a mind-blowing talk, evolutionary biologist Toby Kiers shares what fungi networks and relationships reveal about human economies, and what they can tell us about inequality.
- Subjects:
- Biology
- Keywords:
- Mycorrhizal fungi -- Ecology
- Resource Type:
- Video
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Video
You're on an airplane when you feel a sudden jolt. Outside your window nothing seems to be happening, yet the plane continues to rattle you and your fellow passengers as it passes through turbulent air in the atmosphere. What exactly is turbulence, and why does it happen? Tomás Chor dives into one of the prevailing mysteries of physics: the complex phenomenon of turbulence.
- Subjects:
- Physics
- Keywords:
- Turbulence Atmospheric turbulence
- Resource Type:
- Video
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Video
To study a system as complex as the entire universe, astrophysicists need to be experts at extracting simple solutions from large data sets. What else could they do with this expertise? In an interdisciplinary talk, TED Fellow and astrophysicist Federica Bianco explains how she uses astrophysical data analysis to solve urban and social problems -- as well as stellar mysteries.
- Subjects:
- Environmental Sciences, Research Methods, and Statistics and Research Method
- Keywords:
- Social problems Astrophysics -- Statistical methods Urban pollution
- 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
"For all that's ever been said about climate change, we haven't heard nearly enough about the psychological impacts of living in a warming world," says science writer Britt Wray. In this quick talk, she explores how climate change is threatening our well-being -- mental, social and spiritual -- and offers a starting point for what we can do about it.
- Subjects:
- Health Sciences and Environmental Sciences
- Keywords:
- Climatic changes -- Social aspects Mental health
- Resource Type:
- Video
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Video
Your lifelong health may have been decided the day you were born, says microbiome researcher Henna-Maria Uusitupa. In this fascinating talk, she shows how the gut microbes you acquire during birth and as an infant impact your health into adulthood -- and discusses new microbiome research that could help tackle problems like obesity and diabetes.
- Subjects:
- Health Sciences and Biology
- Keywords:
- Microorganisms Medical genetics
- Resource Type:
- Video
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Video
Easy access to nutrients has contributed to the increase in obesity in the human population. But, what is obesity and why isn’t everybody fat? Dr. Stephen O’Rahilly provides a biomedical perspective of obesity, and evaluates which genes could potentially shift the balance towards obesity. As he explains, one becomes obese when the balance between energy intake and energy spent is shifted. Surprisingly, mutations that lead to obesity in humans aren’t in genes involved in metabolism and energy storage, but failure in satiety signals in the brain that result in people eating too much. The excess of energy intake over energy expenditure leads to obesity. What is the consequence of obesity in human health? Physically, obesity can result in lower mobility and sleeping disorders. But, in humans, the link between obesity and metabolic diseases isn’t straightforward. For example, not everyone that’s obese becomes insulin resistant. As O’Rahilly explains, the probability of an obese individual to have a metabolic disease is linked to the capacity of adipose tissue to store the extra fat. Mutations that decrease fat storage in adipose tissue increase the chance of metabolic diseases, like insulin resistance, even when the person is not obese.
- Subjects:
- Health Sciences and Biology
- Keywords:
- Obesity -- Genetic aspects
- Resource Type:
- Video
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Video
How does your genetic inheritance, culture and history influence your health? Biological anthropologist Lara Durgavich discusses the field of evolutionary medicine as a gateway to understanding the quirks of human biology -- including why a genetic mutation can sometimes have beneficial effects -- and emphasizes how unraveling your own evolutionary past could glean insights into your current and future health.
- Subjects:
- Health Sciences, Public Health, and Human Biology
- Keywords:
- Human genetics Health
- Resource Type:
- Video
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Video
Ever wondered how your smartphone works? Take a journey down to the atomic level with scientist Cathy Mulzer, who reveals how almost every component of our high-powered devices exists thanks to chemists -- and not the Silicon Valley entrepreneurs that come to most people's minds. As she puts it: "Chemistry is the hero of electronic communications."
- Subjects:
- Chemistry
- Keywords:
- Photolithography Chemistry Smartphones Telecommunication
- Resource Type:
- Video
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Video
We're going to take apart a plastic anatomy model and see what we can find in the abdomen. We'll identify as many organs as we can, see how they fit into the abdomen relative to one another, working our way from anterior to posterior.
- Course related:
- HTI17102 Imaging Anatomy
- Subjects:
- Health Sciences and Biology
- Keywords:
- Organs (Anatomy) Abdomen
- Resource Type:
- Video