Big Picture Science for April 22 2024 - De-Permafrosting

Big Picture Science - De-Permafrosting

REPEAT
Above the Arctic Circle, much of the land is underlaid by permafrost. But climate change is causing it to thaw. This is not good news for the planet.

As the carbon rich ground warms, microbes start to feast… releasing greenhouse gases that will warm the Earth even more.

Another possible downside was envisioned by a science-fiction author. Could ancient pathogens–released from the permafrost’s icy grip–cause new pandemics? We investigate what happens when the far north defrosts.

Guests:

• Jacquelyn Gill – Associate professor of paleoecology at the University of Maine.
• Jim Shepard – Novelist and short story writer, and teacher of English at Williams College, and author of “Phase Six.”
• Scott Saleska – Global change ecologist, professor of Ecology and Evolutionary Biology at the University of Arizona, and co-founder of IsoGenie.

This repeat podcast originally aired on September 6, 2021

Download podcast at - https://bigpicturescience.org/episodes/de-permafrosting

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Big Picture Science for April 15 2024 - For the Birds

Big Picture Science - For the Birds

REPEAT
Birds have it going on. Many of these winged dinosaurs delight us with their song and brilliant plumage. Migratory birds travel thousands of miles in a display of endurance that would make an Olympic athlete gasp.

We inquire about these daunting migrations and how birds can fly for days without rest. And what can we do to save disappearing species? Will digital tracking technology help? Plus, how 19th century bird-lovers, appalled by feathered hats, started the modern conservation movement.

Guests:

• Scott Weidensaul – Ornithologist and naturalist and author of “A World on the Wing: the Global Odyssey of Migratory Birds.”
• Kassandra Ford – Doctoral candidate in evolutionary biology at the University of Louisiana at Lafayette.
• Michelle Nijhuis – Science journalist and author of “Beloved Beasts: Fighting for Life in an Age of Extinction.”

This repeat podcast originally aired on May 10, 2021

Download podcast at - https://bigpicturescience.org/episodes/for-the-birds

You can listen to this and other episodes at http://bigpicturescience.org/

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Big Picture Science for April 07 2024 - Fungi Fear

 

 

 

 

 

 

Big Picture Science -  Fungi Fear

REPEAT
The zombie eco-thriller “The Last of Us” has alerted us to the threats posed by fungi. But the show is not entirely science fiction.  Our vulnerability to pathogenic fungi is more real than many people imagine.

Find out what human activity drives global fungal threats, including their menace to food crops and many other species. Our high body temperature has long kept lethal fungi in check; but will climate change cause fungi to adapt to warmer temperatures and threaten our health?

Plus, a radically new way to think about these organisms, how they make all life possible, and how we might find balance again.

Guests:

• Emily Monosson – Toxicologist who writes about changes in the natural world. A member of the Ronin Institute and a professor at the University of Massachusetts, Amherst, she is the author of “Blight: Fungi and the Coming Pandemic.”
• Arturo Casadevall – Microbiologist, immunologist, professor of medicine at Johns Hopkins School of Medicine.
• Michael Hathaway – Anthropologist, director of the Asian Studies Center at Simon Fraser University in Vancouver, Canada, and author of “What a Mushroom Lives For.”

This repeat podcast originally aired on February 13, 2023

Download podcast at - https://bigpicturescience.org/episodes/fungi-fear

You can listen to this and other episodes at http://bigpicturescience.org/

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Big Picture Science for April 01 2024 - Coffee of the Future

Big Picture Science - Coffee of the Future

Drinking a cup of coffee is how billions of people wake up every morning. But climate change is threatening this popular beverage. Over 60% of the world’s coffee species are at risk of extinction. Scientists are searching for solutions, including hunting for wild, forgotten coffee species that are more resilient to our shifting climate. Find out how the chemistry of coffee can help us brew coffee alternatives, and how coffee grounds can be part of building a sustainable future.

Guests:

• Christopher Hendon - Assistant Professor of Computational Materials Chemistry, University of Oregon
• Shannon Kilmartin-Lynch - Associate Professor of Civil Engineering, Monash University, Australia
• Aaron Davis - Senior Research Leader of Crops and Global Change, Royal Botanical Gardens, Kew

Download podcast at - https://bigpicturescience.org/episodes/coffee-of-the-future

You can listen to this and other episodes at http://bigpicturescience.org/

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Big Picture Science for Mar 25 2024 - When the Moon Hits Your Eye

Big Picture Science - When the Moon Hits Your Eye

The Great North American Solar Eclipse will trace a path of shadow across Mexico and 13 U.S. States on April 8th. Phil Plait, also known as The Bad Astronomer, joins the show for an extended interview covering a wide-range of topics, such as his excitement about the eclipse, the Pentagon’s most recent UFO report, and some of the most persistent moon landing conspiracy theories.

Guest:

• Phil Plait – aka the Bad Astronomer, former astronomer on Hubble, teacher, lecturer, and debunker of conspiracy theories. He is also the author of a new book “Under Alien Skies: A Sightseer’s Guide to the Universe.”

Download podcast at - https://bigpicturescience.org/episodes/when-the-moon-hits-your-eye

You can listen to this and other episodes at http://bigpicturescience.org/

Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!

Big Picture Science for Mar 18 2024 - Skeptic Check: Asteroid Mining

 

Big Picture Science - Skeptic Check: Asteroid Mining

Asteroids are rich in precious metals and other valuable resources. But mining them presents considerable challenges. We discuss these, and consider how these spinning, rocky resources might be the key to a space-faring future. But an economist points out the consequences of bringing material back to Earth, and a scientist raises an ethical question; do we have an obligation to keep the asteroids intact for science?

Guests:

• Jim Bell - Planetary scientist in the School of Earth and Space Exploration at Arizona State University.
• Martin Elvis - Astronomer and author of “Asteroids: How Love, Fear, and Greed Will Determine Our Future in Space.”
• Ian Lange - Economist and associate professor at the Colorado School of Mines and author of a paper on the feasibility of asteroid mining.

Download podcast at - https://bigpicturescience.org/episodes/skeptic-check-asteroid-mining

You can listen to this and other episodes at http://bigpicturescience.org/

Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!

Big Picture Science for Mar 11 2024 - Feet Don’t Fail Me

Big Picture Science - Feet Don’t Fail Me

REPEAT
Standing on your own two feet isn’t easy. While many animals can momentarily balance on their hind legs, we’re the only critters, besides birds, for whom bipedalism is completely normal. Find out why, even though other animals are faster, we’re champions at getting around. Could it be that our upright stance made us human? Plus, why arches help stiffen feet, the argument for bare-footin’, and 12,000-year old footprints that tell a story about an Ice Age mother, her child, and a sloth.

Guests:

• Daniel Lieberman – Professor of human evolutionary biology at Harvard University.
• Jeremy DeSilva – Professor in the departments of anthropology and biological sciences, Dartmouth College, and author of “First Steps: How Upright Walking Made Us Human.”
• Madhusudhan Venkadesan – Professor of mechanical engineering and materials science, Yale University School of Engineering.
• David Bustos – Chief of Resources at White Sands, National Park, New Mexico.
• Sally Reynolds – Paleontologist at Bournemouth University, U.K.

This repeat podcast originally aired on May 24, 2021

Download podcast at - https://bigpicturescience.org/episodes/feet-dont-fail-me

You can listen to this and other episodes at http://bigpicturescience.org/

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Big Picture Science for Mar 04 2024 - Lady Parts

Big Picture Science - Lady Parts

REPEAT
The Supreme Court’s ruling on Roe has ignited fierce debate about bodily autonomy. But it’s remarkable how little we know about female physiology. Find out what studies have been overlooked by science, and what has been recently learned. Plus, why studying women’s bodies means being able to say words like “vagina” without shame ... a researcher who is recreating a uterus in her lab to study endometriosis …  and an overdue recognition of medical pioneer Dr. Rebecca Lee Crumpler.

Guests:

• Melody T. McCloud - Obstetrician Gynecologist and Founder and Medical Director of Atlanta Women's Health Care; co-author of “Black Women's Wellness: Your ‘I've Got This!’ Guide to Health, Sex, and Phenomenal Living”
• Victoria Gall - Volunteer with the Friends of the Hyde Park Library and the Hyde Park Historical Society
• Rachel E. Gross - Science journalist and author of “Vagina Obscura: An Anatomical Voyage”
• Linda Griffith - Professor of Biological and Mechanical Engineering at M.I.T., Director of the Center for Gynepathology Research, and author of the Boston Globe article, “‘FemTech’ and a moonshot for menstruation science”
• Roshni Babal - Pediatric Asthma and Chronic Disease Program Coordinator at Boston Medical Center
• Perri Klass - Professor of Journalism and Pediatrics at New York University and Author of “The Best Medicine: How Science and Public Health Gave Children a Future”

This repeat podcast originally aired on October 31, 2022

Download podcast at - https://bigpicturescience.org/episodes/lady-parts

You can listen to this and other episodes at http://bigpicturescience.org/

Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!

Big Picture Science for Feb. 26 2024 - Tomb with a View

Big Picture Science - Tomb with a View

REPEAT
A century ago, British archaeologist Howard Carter opened the only surviving intact tomb from ancient Egypt. Inside was the mummy of the boy king Tutankhamun, together with “wonderful things” including a solid gold mask.

Treasure from King Tut’s crypt has been viewed both in person and virtually by many people since. We ask what about Egyptian civilization so captivates us, thousands of years later. Also, how new technology from modern physics allows researchers to “X-Ray” the pyramids to find hidden chambers.

Guests:

• Emma Bentley – Postgraduate student in Archeology and Ancient Worlds at the University of Edinburgh in the U.K.
• Sarah Parcak – Archaeologist and Egyptologist, University of Alabama, and author of “Archaeology From Space: How the Future Shapes Our Past.”
• Richard Kouzes – Physicist at the Department of Energy’s Pacific Northwest National Laboratory.
• Salima Ikram – Professor of Egyptology at The American University in Cairo and head of the Animal Mummy Project at the Egyptian Museum in Cairo.

This repeat podcast originally aired on December 12, 2022

Download podcast at - https://bigpicturescience.org/episodes/tomb-with-a-view

You can listen to this and other episodes at http://bigpicturescience.org/

Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!

Big Picture Science for Feb. 19 2024 - Lithium Valley

Big Picture Science - Lithium Valley

The discovery of a massive amount of lithium under the Salton Sea could make the U.S. lithium independent. The metal is key for batteries in electric vehicles and solar panels. But the area is also a delicate ecosystem. We go to southern California to hear what hangs in the balance of the ballooning lithium industry, and also how we extract other crucial substances  – such as sand, copper and iron– and turn them into semiconductors, circuitry and other products upon which the modern world depends.

Guests:

• Ed Conway – economics and data editor of Sky News and columnist for the Times in London.  He’s the author of “Material World, The Six Raw Materials that Shape Modern Civilization“.
• Frank Ruiz – Audubon California Salton Sea Program Director.
• Michael McKibben – Geologist, University of California, Riverside.

Download podcast at - https://bigpicturescience.org/episodes/lithium-valley

You can listen to this and other episodes at http://bigpicturescience.org/

Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!

Big Picture Science for Feb. 12 2024 - Alien Says What?

Big Picture Science - Alien Says What?

Whales are aliens on Earth; intelligent beings who have skills for complex problem-solving and their own language. Now in what’s being called a breakthrough, scientists have carried on an extended conversation with a humpback whale. They share the story of this remarkable encounter, their evidence that the creature understood them, and how the experiment informs our Search for Extraterrestrial Intelligence. After all, what good is it to make contact with ET if we can’t communicate?

Guests:

• Brenda McCowan – Research behaviorist at the University of California Davis in the School of Veterinary Medicine who studies the ecological aspects of animal behavior and communication.
• Fred Sharpe – whale biologist and behavioral ecologist at Simon Fraser University and member of the Templeton WhaleSETI Team.
• Laurance Doyle – astrophysicist and information theory researcher at the SETI Institute.

Download podcast at - https://bigpicturescience.org/episodes/alien-says-what

You can listen to this and other episodes at http://bigpicturescience.org/

Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!

Big Picture Science for Feb. 05 2024 - The Wrong Stuff

Big Picture Science - The Wrong Stuff

By one estimate the average American home has 300,000 objects. Yet our ancient ancestors had no more than what they could carry with them. How did we go from being self-sufficient primates to nonstop shoppers? We examine the evolutionary history of stuff through the lens of archeology beginning with the ancestor who first picked up a palm-sized rock and made it into a tool.

Guest:

• Chip Colwell - archeologist and former Curator of Anthropology at the Denver Museum of Nature & Science, editor-in-chief of the digital magazine Sapiens, and author of “So Much Stuff: How Humans Discovered Tools, Invented Meaning, and Made More of Everything.”

Download podcast at - https://bigpicturescience.org/episodes/the-wrong-stuff

You can listen to this and other episodes at http://bigpicturescience.org/

Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!

Big Picture Science for Jan. 29 2024 - Skeptic Check: Hypnosis

 

Big Picture Science - Skeptic Check: Hypnosis

REPEAT
You are getting sleeeepy and open to suggestion. But is that how hypnotism works? And does it really open up a portal to the unconscious mind? Hypnotism can be an effective therapeutic tool, and some scientists suggest replacing opioids with hypnosis for pain relief. And yet, the performance aspect of hypnotism often seems at odds with the idea of it being an effective treatment.

In our regular look at critical thinking, Skeptic Check, we ask what part of hypnotism is real and what is an illusion. Plus, we discuss how the swinging watch became hypnotism’s irksome trademark

Guests:

• David Spiegel – Professor of Psychiatry and Behavioral Sciences at the Stanford University School of Medicine
• Devin Terhune – Reader in the Department of Psychology, Goldsmiths University of London

This repeat podcast originally aired on June 27, 2022

Download podcast at - https://bigpicturescience.org/episodes/skeptic-check-hypnosis

You can listen to this and other episodes at http://bigpicturescience.org/

Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!

Big Picture Science for Jan. 22 2024 - Inside Planets

Big Picture Science - Inside Planets

With planets and moons, it’s what’s inside that counts. If we want to understand surface features, like volcanoes, or their history, such as how the planet formed or whether it’s suitable for life, we study their interiors. Astronomer Sabine Stanley takes us on a journey to the centers of Venus, Saturn’s large moon Titan, Jupiter’s moon Io, and of course Earth, to help us understand how they, and the solar system, came to be.

Guest:

• Sabine Stanley - Planetary scientist at Johns Hopkins University and the author of What’s Hidden Inside Planets.

Download podcast at  - https://bigpicturescience.org/episodes/inside-planets

You can listen to this and other episodes at http://bigpicturescience.org/

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Big Picture Science for Jan. 15 2024 - Tech in Check

Big Picture Science - Tech in Check

Worried that AI will replace you? It may not seem like the Hollywood writers’ strike has anything in common with the Luddite rebellion in England in 1811, but they are surprisingly similar. Today we use the term “Luddite” dismissively to describe a technophobe, but the original Luddites – cloth workers – organized and fought Industrial Revolution automation and the factory bosses who were replacing humans with cotton spinning machines and steam powered looms. Find out what our age of AI can learn from textile workers of 200 years ago about keeping humans in the loop.

Guest:

• Brian Merchant - Los Angeles Times tech columnist and author of “Blood in the Machine: The Origins of the Rebellion Against Big Tech”  

Download podcast at  - https://bigpicturescience.org/episodes/tech-in-check

You can listen to this and other episodes at http://bigpicturescience.org/

Get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!