Monday, August 31, 2020

Big Picture Science for Aug 31, Home Invasions

 







 

Big Picture Science - Home Invasions

As we struggle to control a viral invader that moves silently across the globe and into its victims, we are also besieged by other invasions. Murder hornets have descended upon the Pacific Northwest, threatening the region’s honeybees. In Africa, locust swarms darken the sky. In this episode, we draw on a
classic science fiction tale to examine the nature of invasions, and what prompts biology to go on the move.

Guests: 

  • Peter Ksander – Associate professor at Reed College in the Department of Theater. Producer of the spring 2020 production of War of the Worlds
  • Eva Licht – A senior at Reed College, and producer and director of War of the Worlds
  • Chris Looney – Entomologist with the Washington State Department of Agriculture, where he manages its general entomology laboratory
  • Nipun Basrur – Neurobiologist at The Rockefeller University
  • Amy Maxmen – Reporter at the journal Nature, in which her story about pandemic war games appeared.


Download podcast at - http://bigpicturescience.org/episodes/home-invasions

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Monday, August 24, 2020

Big Picture Science for Aug 24, The X-Flies

 






 

Big Picture Science - The X-Flies

Insect populations are declining. But before you say “good riddance,” consider that insects are the cornerstone of many ecosystems. They are dinner for numerous animal species and are essential pollinators. Mammals are loved, but they are not indispensable. Insects are.

Meanwhile, marvel at the extraordinary capabilities of some insects. The zany aerial maneuvers of the fly are studied by pilots.  And, contrary to the bad press, cockroaches are very clean creatures. Also, take a listen as we host some Madagascar hissing cockroaches in our studio (yes, they audibly hiss).

Plus, how insects first evolved … and the challenges in controlling lethal ones. Are genetically-engineering mosquitoes the best way to combat malaria?

Guests:

  • Erica McAlister – Entomologist, Senior Curator of diptera in the Department of Entomology, Natural History Museum in London, author of “The Secret Life of Flies
  • Jessica Ware – Evolutionary biologist and entomologist at Rutgers University
  • Anthony James – Vector biologist, University of California, Irvine
  • Lauren Esposito – Arachnologist, California Academy of Sciences, San Francisco


This repeat podcast was previously released on March 19, 2018

Download podcast at - http://bigpicturescience.org/episodes/x-flies

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Monday, August 17, 2020

Big Picture Science for Aug 17, Skeptic Check: Worrier Mentality






 

 

Big Picture Science - Skeptic Check: Worrier Mentality

(Repeat) Poisonous snakes, lightning strikes, a rogue rock from space.  There are plenty of scary things to fret about, but are we burning adrenaline on the right ones?  Stepping into the bathtub is more dangerous than flying from a statistical point of view, but no one signs up for “fear of showering” classes.

Find out why we get tripped up by statistics, worry about the wrong things, and how the “intelligence trap” not only leads smart people to make dumb mistakes, but actually causes them to make more.

Guests:  


This repeat podcast was previously released on May 27, 2019

Download podcast at - http://bigpicturescience.org/episodes/skeptic-check-worrier-mentality

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Monday, August 10, 2020

Big Picture Science for Aug 10, Math's Paths

 

 





 

Big Picture Science - Math's Paths

(Repeat) If you bake, you can appreciate math’s transformative properties.  Admiring the stackable potato chip is to admire a hyperbolic sheet.  Find out why there’s no need to fear math - you just need to think outside the cuboid.  Also, how nature’s geometric shapes inspire the next generation of squishy robots and an argument for radically overhauling math class.  The end point of these common factors is acute show that’s as fun as eating Pi.

Guests: 


This repeat podcast was previously released on July 15, 2019

Download podcast at - http://bigpicturescience.org/episodes/maths-paths

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Tuesday, August 04, 2020

Big Picture Science for Aug 3, On Thin Ice














Big Picture Science - On Thin Ice

(Repeat) Water is essential for life – that we know. But the honeycomb lattice that forms when you chill it to zero degrees Celsius is also inexorably intertwined with life.

Ice is more than a repository for water that would otherwise raise sea levels. It’s part of Earth’s cooling system, a barrier preventing decaying organic matter from releasing methane gas, and a vault entombing ancient bacteria and other microbes.

From the Arctic to the Antarctic, global ice is disappearing. Find out what’s at stake as atmospheric CO2 threatens frozen H2O.

Guests:
  • Peter Wadhams - Emeritus Professor of Ocean Physics at Cambridge University in the U.K. and the author of A Farewell to Ice: A Report from the Arctic
  • Eric Rignot - Earth systems scientist, University of California, Irving, senior research scientist, NASA Jet Propulsion Laboratory
  • Åsmund Asdal - Biologist, Nordic Genetic Resource Center, coordinator for operations and management of the Svalbard Global Seed Vault, Svalbard, Norway
  • John Priscu - Polar biologist, Montana State University

This repeat podcast was previously released on August 14, 2017

Download podcast at - http://bigpicturescience.org/episodes/on-thin-ice

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Monday, July 27, 2020

Big Picture Science for July 27, Skeptic Check: Know-It-Alls
















Big Picture Science - Skeptic Check: Know-It-All

Think you’re some kind of expert? Join the club. It’s one thing to question authority; another to offer up your untrained self as its replacement. Rebellion may be a cherished expression of American individualism, but, from sidelining Dr. Fauci to hiding public health data, find out what we lose when we silence health experts and “go with our gut” during a pandemic. Plus, from ancestors to algorithms: how we’ve replaced credentialed experts with sketchy web sites and social media posts.

Guests:

Download podcast at - http://bigpicturescience.org/episodes/skeptic-check-know-it-alls

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Sunday, July 26, 2020

Big Picture Science for July 20, Something in the Air














Big Picture Science - Something in the Air

Inhale. Now exhale. Notice anything different? Our response to the virus is changing the air in unexpected ways. A pandemic-driven pause on travel has produced clear skies and a world-wide air quality experiment. And a new study reveals that hundreds of tons of microplastics are raining down on us each day.

But we can improve the quality of the breaths we do take; engineers have devised a high-tech mask that may kill coronavirus on contact. Plus, although you do it 25,000 times a day, you may not be breathing properly. Nose-breathing vs mouth breathing: getting the ins-and-outs of respiration.

Guests:

Download podcast at - http://bigpicturescience.org/episodes/something-in-the-air

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Big Picture Science for July 13, COVID Curiosities














Big Picture Science - COVID Curiosities

Some dogs and cats have become sick with COVID. But it’s not just domestic critters that are vulnerable: zoo animals have fallen ill too. There’s more strange news about the pandemic, for example scientists who track the coronavirus in our sewage, and computer models that show that flushing the toilet
can launch persistent, pathogenic plumes into the room. And scientists have warned the WHO that infectious virus remains airborne. Also, how a shortage of glass vials could delay the deployment of a vaccine.

Guests:
  • Yvette Johnson-Walker - Epidemiologist at the University of Illinois College of Veterinary Medicine, and affiliate faculty with the University of Chicago Illinois School of Public Health.
  • Rolf Halden - Professor and Director of the Biodesign Center for Environmental Health Engineering at Arizona State University.
  • Bryan Bzdek - Chemist, School of Chemistry, University of Bristol, U.K.
  • Megan Molteni - Staff writer, “Wired.”

Download podcast at - http://bigpicturescience.org/episodes/covid-curiosities

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Big Picture Science for July 6, Creative Brains














Big Picture Science - Creative Brains

(Repeat) Your cat is smart, but its ability to choreograph a ballet or write computer code isn’t great. A lot of animals are industrious and clever, but humans are the only animal that is uniquely ingenious and creative.

Neuroscientist David Eagleman and composer Anthony Brandt discuss how human creativity has reshaped the world. Find out what is going on in your brain when you write a novel, paint a watercolor, or build a whatchamacallit in your garage.

But is Homo sapiens’ claim on creativity destined to be short-lived? Why both Eagleman and Brandt are prepared to step aside when artificial intelligence can do their jobs.

Guests:

This repeat podcast was previously released on February 5, 2018

Download podcast at - http://bigpicturescience.org/episodes/creative-brains

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Sunday, July 19, 2020

Big Picture Science for June 29, Animals Like Us













Big Picture Science - Animals Like Us

(Repeat) Laughing rats, sorrowful elephants, joyful chimpanzees.  The more carefully we observe, and the more we learn about animals, the closer their emotional lives appear to resemble our own.  Most would agree that we should minimize the physical suffering of animals, but should we give equal
consideration to their emotional stress?  Bioethicist Peter Singer weighs in. Meanwhile, captivity that may be ethical: How human-elephant teamwork in Asia may help protect an endangered species.

Guests:

This repeat podcast was previously released on June 24, 2019

Download podcast at - http://bigpicturescience.org/episodes/animals-like-us

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Monday, June 22, 2020

Big Picture Science for June 22, Let's Stick Together













Big Picture Science - Let's Stick Together

Crowded subway driving you crazy?  Sick of the marathon-length grocery store line? Wish you had a hovercraft to float over traffic?  If you are itching to hightail it to an isolated cabin in the woods, remember, we evolved to be together.  Humans are not only social, we’re driven to care for one another, even those outside our immediate family.

We look at some of the reasons why this is so – from the increase in valuable communication within social groups to the power of the hormone oxytocin.  Plus, how our willingness to tolerate anonymity, a condition which allows societies to grow, has a parallel in ant supercolonies.

Guests:

This repeat podcast was previously released on July 22, 2019

Download podcast at - http://bigpicturescience.org/episodes/lets-stick-together

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Monday, June 15, 2020

Big Picture Science for June 15, Skeptic Check: Data Bias













Big Picture Science - Skeptic Check: Data Bias

(Repeat) Sexist snow plowing?  Data that guide everything from snow removal schedules to heart research often fail to consider gender.  In these cases, “reference man” stands in for “average human.”   Human bias also infects artificial intelligence, with speech recognition triggered only by male voices and facial recognition that can’t see black faces. We question the assumptions baked into these numbers and algorithms.

Guests:

This repeat podcast was previously released on 09/02/2019

Download podcast at - http://bigpicturescience.org/episodes/skeptic-check-data-bias

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Monday, June 08, 2020

Big Picture Science for June 8, Race and COVID













Big Picture Science - Race and COVID

While citizens take to the streets to protest racist violence, the pandemic has its own brutal inequities. Black, Latino, and Native American people are bearing the brunt of COVID illness and death. We look at the multitude of factors that contribute to this disparity, most of which existed long before the
pandemic. Also, how the Cheyenne River Sioux tribe maintained their coronavirus safeguards in defiance of the South Dakota governor. And, the biological reasons why we categorize one another by skin color.

Guests:

Download podcast at - http://bigpicturescience.org/episodes/race-and-covid

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Monday, June 01, 2020

Big Picture Science for June 1, Soap, Skin, Sleep













Big Picture Science - Soap, Skin, Sleep

Some safeguards against COVID-19 don’t require a medical breakthrough. Catching sufficient Z’s makes for a healthy immune system. And, while you wash your hands for the umpteenth time, we'll explain how soap sends viruses down the drain. Plus, your body’s largest organ – skin – is your first line of defense against the pandemic and is also neglected because of it. Find out why we're suffering from "skin hunger" during this crisis.

Guests:

Download podcast at - http://bigpicturescience.org/episodes/soap-skin-sleep

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Monday, May 25, 2020

Big Picture Science for May 25, Gained in Translation













Big Picture Science - Gained in Translation

(Repeat) Your virtual assistant is not without a sense of humor. Its repertoire includes the classic story involving a chicken and a road.  But will Alexa laugh at your jokes? Will she groan at your puns?

Telling jokes is one thing. Teaching a computer to recognize humor is another, because a clear definition of humor is lacking. But doing so is a step toward making more natural interactions with A.I.

Find out what’s involved in tickling A.I.’s funny bone. Also, an interstellar communication challenge: Despite debate about the wisdom of transmitting messages to space, one group sends radio signals to E.T. anyway. Find out how they crafted a non-verbal message and what it contained.

Plus, why using nuanced language to connive and scheme ultimately turned us into a more peaceful species. And yes, it’s all gouda: why melted cheese may be the cosmic message of peace we need.

Guests:

This repeat podcast was previously released on April 22, 2019

Download podcast at - http://bigpicturescience.org/episodes/gained-in-translation

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.