Category Archives: Science

News, Podcasts, Science

New Science Podcasts: Faster Image ID, Crafting Crystals And Coronavirus / Covid-19 Update (Nature)

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Nature PodcastsListen to the latest from the world of science, with Benjamin Thompson and Nick Howe. This week, improving computers’ image identification, and a new method for growing crystals.

In this episode:

00:44 Upgrading computer sight

Researchers have designed a sensor that allows machines to assess images in nanoseconds. Research Article: Mennel et al.; News and Views: In-sensor computing for machine vision

06:51 Research Highlights

Calorie restriction’s effects on rat cells, and the dwindling of sandy seashores. Research Highlight: Old age’s hallmarks are delayed in dieting rats; Research Highlight: Sandy beaches are endangered worldwide as the climate changes

08:53 Crafting crystals

To understand the structure of materials, researchers often have to grow them in crystal form. A new method aims to speed up this process. Research article: Sun et al.

14:48 News Chat

Coronavirus outbreak updates, and climate change’s role in the Australian bush fires. News: Coronavirus: latest news on spreading infection; News: Climate change made Australia’s ‘unprecedented’ bushfires 30% more likely

Art, Arts & Literature, Lectures, Science, Videos

Art Lectures: “Science In The 17th Century Dutch Golden Age” (MFA Boston)

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Peer through the lens of flourishing 17th-century Dutch technological innovation to witness wondrous advancements in science, including astronomy and medicine.

Harold J. Cook, John F. Nickoll Professor of History, Brown University

News, Science, Technology

Tributes: “Maverick Genius” Freeman Dyson Dies At 96 (1923-2020); Said That “Life Begins At 55”

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Excerpts from a New York Times article (Feb 28, 2020):

The Pioneering Odyssey of Freeman Dyson Maverick Genius Book“Life begins at 55, the age at which I published my first book,” he wrote in “From Eros to Gaia,” one of the collections of his writings that appeared while he was a professor of physics at the Institute for Advanced Study — an august position for someone who finished school without a Ph.D. The lack of a doctorate was a badge of honor, he said. With his slew of honorary degrees and a fellowship in the Royal Society, people called him Dr. Dyson anyway.

Freeman J. Dyson, a mathematical prodigy who left his mark on subatomic physics before turning to messier subjects like Earth’s environmental future and the morality of war, died on Friday at a hospital near Princeton, N.J. He was 96.

As a young graduate student at Cornell University in 1949, Dr. Dyson wrote a landmark paper — worthy, some colleagues thought, of a Nobel Prize — that deepened the understanding of how light interacts with matter to produce the palpable world. The theory the paper advanced, called quantum electrodynamics, or QED, ranks among the great achievements of modern science.

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History, News, Science

Top Science Podcasts: A Greater Mayan Empire & Costs Of Illegal Fishing

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But was this new ruler of a Maya city really from a separate culture? New techniques being used at the Tikal and Teotihuacan sites have revealed conflicting evidence as to whether Teotihuacan really held sway over a much larger region than previously estimated.

Sarah also talks with Rashid Sumaila, professor and Canada research chair in interdisciplinary ocean and fisheries economics at the University of British Columbia, Vancouver’s Institute for the Oceans and Fisheries. You may have heard of illegal fishing being bad for the environment or bad for maintaining fisheries—but as Sumaila and colleagues report this week in Science Advances, the illegal fishing trade is also incredibly costly—with gross revenues of between $8.9 billion and $17.2 billion each year.

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Podcasts, Science

Science Podcasts: Fruit Fly Neural Circuits, Fuzzy Moth Acoustics And Metallic Glass (Nature)

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Nature PodcastsThis week, the brain pathways of egg laying in fruit flies, preventing fractures in metallic glass, moth’s fuzz as superior acoustic camouflage and a coronavirus update.

In this episode:

00:46 Working out the wiring behind fruit fly behaviour

Researchers have identified a neural circuit linking mating and egg laying in female fruit flies. Research Article: Wang et al.

06:01 Research Highlights

Ancient, cave-dwelling cockroaches, and hairy moths dampen sound. Research Highlight: Cockroaches preserved in amber are the world’s oldest cave dwellers; Research Highlight: Stealth flyers: moths’ fuzz is superior acoustic camouflage

07:57 Making better metallic glass

Metallic glasses have many desirable properties, but these materials are prone to fracturing. Now, a new manufacturing process may have overcome this issue. Research article: Pan et al.; News and Views: Metallic glasses rejuvenated to harden under strain

13:47 News Chat

Coronavirus outbreak updates, a survey shows Indian bird numbers are in decline, and the genomes of New York rats. News: Coronavirus: latest news on spreading infection; News: Hundreds of bird species in India are declining; News: Genomes reveal how New York City’s rats thrive in the urban jungle

Energy, Environment, Interviews, Reviews, Science, Videos

Interviews: 71-Year Old Nobel Prize Physicist Steven Chu Q&A On Sustainability (Video)

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Watch a Q&A with Steven Chu, who’s devoted a large part of his scientific career to searching for solutions to our climate challenges.

  • 0.06 – What does sustainability mean to you?
  • 0.34 – What are the present challenges in sustainability?
  • 1.50 – How can we help every person see the importance of being sustainable?
  • 3.24 – What can I do to be more sustainable in my everyday life?
  • 5.22 – What’s the most sustainable form of energy in your opinion?
  • 6.44 – How do you try to do research in the lab in a sustainable way?
  • 8.34 – Where do you see our world’s climate status in 50 years?
  • 10.19 – Do you feel hope in humanity when it comes to tackling climate change?

Steven Chu born February 28, 1948) is an American physicist and a former government official. He is known for his research at the University of California at Berkeley and his research at Bell Labs and Stanford University regarding the cooling and trapping of atoms with laser light, for which he won the Nobel Prize in Physics in 1997, along with his scientific colleagues Claude Cohen-Tannoudji and William Daniel Phillips.

Chu served as the 12th United States Secretary of Energy from 2009 to 2013. At the time of his appointment as Energy Secretary, Chu was a professor of physics and molecular and cellular biology at the University of California, Berkeley, and the director of the Lawrence Berkeley National Laboratory, where his research was concerned primarily with the study of biological systems at the single molecule level. Chu resigned as energy secretary on April 22, 2013. He returned to Stanford as Professor of Physics and Professor of Molecular & Cellular Physiology.

Chu is a vocal advocate for more research into renewable energy and nuclear power, arguing that a shift away from fossil fuels is essential to combating climate change. He has conceived of a global “glucose economy”, a form of a low-carbon economy, in which glucose from tropical plants is shipped around like oil is today. On February 22, 2019, Chu began a one-year term as president of the American Association for the Advancement of Science.

Bio from Wikipedia