Big Picture Science
The surprising connections in science and technology that give you the Big Picture. Astronomer Seth Shostak and science journalist Molly Bentley are joined each week by leading researchers, techies, and journalists to provide a smart and humorous take on science. Our regular "Skeptic Check" episodes cast a critical eye on pseudoscience.
226
Math's Paths (rebroadcast)
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,...
50 min
227
On Thin Ice (rebroadcast)
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....
50 min
228
Skeptic Check: Know-It-Alls
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...
50 min
229
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...
50 min
230
COVID Curiosities
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...
50 min
231
Creative Brains (Rebroadcast)
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...
50 min
232
Animals Like Us (rebroadcast)
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...
50 min
233
Let's Stick Together (rebroadcast)
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....
50 min
234
Skeptic Check: Data Bias (rebroadcast)
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,...
50 min
235
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...
50 min
236
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,...
50 min
237
Gained in Translation (rebroadcast)
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....
50 min
238
Vaccine, When?
It will be the shot heard ‘round the world, once it comes. But exactly when can we expect a COVID vaccine? We discuss timelines, how it would work, who’s involved, and the role of human challenge trials. Also, although he...
50 min
239
To the Bat Cave
To fight a pandemic, you need to first understand where a virus comes from. That quest takes disease ecologist Jon Epstein to gloomy caverns where bats hang out. There he checks up on hundreds of the animals as his team from the EcoHealth Alliance...
50 min
240
Is Life Inevitable? (Rebroadcast)
A new theory about life’s origins updates Darwin’s warm little pond. Scientists say they’ve created the building blocks of biology in steaming hot springs. Meanwhile, we visit a NASA lab where scientists simulate deep-sea vent chemistry to...
50 min
241
Skeptic Check: Covid Conspiracy
Nature abhors a vacuum, but conspiracy theorists love one. While we wait for scientists to nail down the how and why of the coronavirus, opportunists have jumped into the void, peddling DIY testing kits and fake COVID cures like colloidal...
50 min
242
Treating the Virus
Treating the Virus It’s not like waiting for Godot, because he never arrived. A coronavirus vaccine will come. But it is still months away. Meanwhile, scientists are adding other weapons to our growing arsenal against this virus....
50 min
243
The Other Living World
Reason for hope is just one thing that ecologist Carl Safina can offer. He understands why many of us turn to nature to find solace during this stressful time. Safina studies the challenges facing the ultimate survival of many species, but also...
50 min
244
Zombies, Bigfoot, and Max Brooks
What do a zombie attack and a viral pandemic have in common? They are both frightening, mindless, and relentless in their assault. And both require preparedness. That’s why the author of “World War Z” – a story about a...
50 min
245
Let's Take a Paws
Humans aren’t the only animals stressed-out by social distancing. Narwhals send out echolocation clicks to locate their buddies and ease their loneliness. And a plant about to be chomped by a caterpillar knows that the world can be a...
50 min
246
How Bad Does It Have to Get?
“Climate change at warp speed” is the way one scientist described the coronavirus outbreak. In a show recorded before a live audience at the Seattle AAAS meeting, and co-presented with the BBC World Service, we discuss out how politics...
50 min
247
It's In Material [rebroadcast]
Astronauts are made of the “right stuff,” but what about their spacesuits? NASA’s pressurized and helmeted onesies are remarkable, but they need updating if we’re to boldly go into deep space. Suiting up on Mars...
50 min
248
Skeptic Check: Pandemic Fear
Contagion aside, coronavirus is a powerful little virus. It has prompted a global experiment in behavior modification: elbow bumps instead of handshakes, hand sanitizer and mask shortages, a gyrating stock market. Pragmatism motivates our...
50 min
249
DecodeHer [rebroadcast]
They were pioneers in their fields, yet their names are scarcely known – because they didn’t have a Y chromosome. We examine the accomplishments of two women who pioneered code breaking and astronomy during the early years of the twentieth...
50 min
250
AI: Where Does it End?
The benefits of artificial intelligence are manifest and manifold, but can we recognize the drawbacks … and avoid them in time? In this episode, recorded before a live audience at the Seattle meeting of the American Association for the...
50 min