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Science, Spoken

Science, Spoken

2,361 episodes — Page 27 of 48

Fitted With Sensors, Antarctic Seals Track Water Temperatures

On a rocky island just off the coast of West Antarctica, ecologist Lars Boehme is standing face-to-face with a 1,500-pound elephant seal, eyeing the animal’s bulbous nose and jowls to see if he’s finished shedding his fur. When the seal opens his mouth wide to bellow, Boehme waves his hand in front of his face like he’s just smelled something foul. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 26, 20199 min

We Need a Data-Rich Picture of What's Killing the Planet

You’ve probably heard about the plague of plastic trash in the oceans. You’ve seen YouTube videos of sea turtles with drinking straws in their noses, or whales with stomachs full of marine litter. But how much plastic is out there? Where is it coming from? We don’t really know, because we haven’t measured it. “There’s a paucity of data,” says Marcus Eriksen, cofounder of the 5 Gyres Institute, a nonprofit focused on ending plastic pollution. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 25, 20194 min

Neptune Is a Windy, Chilly, and Baffling Planet. Let's Go!

It was just after midnight at mission control center at NASA’s Jet Propulsion Laboratory, and Carl Sagan was exuberant. The Voyager 2 spacecraft had just completed its decade-long mission by making its closest pass to Neptune, before continuing on into interstellar space. It was the first—and so far only—spacecraft to visit the mysterious blue ice giant lurking at the edge of the solar system. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 24, 20197 min

Lawyers in a Murder Trial Clash Over a DNA Forensics Method

On a large screen inside a packed Snohomish County courtroom, in Washington, a young Canadian couple smiled out at the dimmed room from the relaxed, faded scene of a party. It was the last known picture taken of Tanya Van Cuylenberg and Jay Cook together before they disappeared in November 1987. Their bodies were discovered days after they went missing, more than 60 miles apart. Thirty-one years later, William Talbott II is now standing trial as the first person to be accused of the double murder. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 21, 20196 min

This Robot Fish Powers Itself With Fake Blood

This story begins thousands of feet up in the air with migratory birds, and ends with a robotic fish swimming through the water below. To prepare for their journeys, birds fatten up big time, perhaps doubling their weight, essentially turning themselves into feathered batteries. Over many days and many miles, they burn that energy reserve to power their wings and keep themselves from starving and freezing. Eventually they reach their destinations emaciated. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 20, 20195 min

The Midwest's Farms Face an Intense, Crop-Killing Future

The flooding that devastated the Midwest this spring damaged infrastructure and prevented farmers from getting crops planted on time. Though scientists can’t say if one storm or one wet season is the result of climate change, so far this year’s heavy rains are a perfect illustration of what scientific models of climate change predict for the region. And it’s only going to get more intense. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 19, 20196 min

The Physics of Actually Flying Around in an Iron Man Suit

I was fairly impressed with the first episode of Savage Builds, which is now airing on the Discovery Channel. It's basically a show that lets Adam Savage (from MythBusters) do whatever he wants. In this case, he attempts to build an actual real-life Iron Man suit. SPOILER ALERT: He mostly succeeds. This is accomplished by printing out Iron Man armor pieces in titanium and then adding the jet suit from Gravity Industries on top of that. Yes, there is a real-life flying suit. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 19, 20198 min

These Sumptuous Images Give Deep Space Data an Old-World Look

Eleanor Lutz has a running list of scientific topics she wants to find data sets for. It’s not her job exactly. A biologist with wide-ranging curiosity, Lutz moonlights as a data-driven illustrator who transforms public data sets into arrestingly beautiful visual objects. She’s made digital trading cards of animated viruses (who knew HPV could be so mesmerizing), and infographics on plant species that have evolved to withstand forest fires. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 18, 20192 min

A New Fuel for Satellites Is So Safe It Won’t Blow Up Humans

Later this month, a small satellite will hitch a ride on a SpaceX Falcon Heavy rocket for the world’s first demonstration of “green” satellite propellant in space. The satellite is fueled by AFM-315, which the Air Force first developed more than 20 years ago as an alternative to the typical satellite juice of choice, hydrazine. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 18, 20194 min

Remembering Gabriele Grunewald, Who Ran For Herself and Others

The image is hard to look at now without crying: a thick red scar, carved across Gabriele Grunewald’s midriff as she flies around the track. At first it looks like it shouldn’t be there; perhaps it’s just an out-of-place shadow. But soon it becomes obvious what it truly is: a symbol of perseverance and pain. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 17, 20194 min

Blame Utilities for Wildfires. But Blame Everyone Else Too

It’s hard to feel sorry for the California utility PG&E, considering that officials blamed its equipment for starting nearly every major fire in the state in 2017. Last year, it was responsible for igniting the Camp Fire, which killed 85 and destroyed almost 20,000 structures. The problem is typically wind, which jostles electric lines, raining sparks onto parched vegetation below. So just cut the power when it’s particularly hot and dry and windy, right? If only it were so easy. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 17, 20197 min

Estimate the Energy of an Utterly Massive Wind Turbine

It's amazing that we can get electrical power just from the wind, but that's exactly what happens with a wind farm. It's a collection of wind turbines in a particular location with abundant wind. And as with many things, bigger is better. The Hornsea Wind Farm, for example, is being built 75 miles off the coast of Yorkshire, England, and upon completion it is expected to be the biggest offshore wind farm in the world. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 14, 20195 min

The Top Secret Cold War Project That Pulled Climate Science From the Ice

In 1961—the year before he became the anchorman for CBS News—Walter Cronkite visited Camp Century, an unusual military compound on the Greenland ice sheet. Carved under the snow and ice, Camp Century had a main street and prefab housing for 250 soldiers and scientists—all powered by a pint-sized nuclear reactor. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 13, 201920 min

Here’s What a $52 Million Ticket to the ISS Will Get You

So you have $52 million burning a hole in your pocket and just can’t decide what to do with it. Buy a private island? Too cliche. A new McLaren? You have enough of those. Pay off college administrators? Your kids have already graduated. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 13, 20196 min

More Scientists Now Think Geoengineering May Be Essential

This story originally appeared on Yale Environment 360 and is part of the Climate Desk collaboration. Once seen as spooky sci-fi, geoengineering to halt runaway climate change is now being looked at with growing urgency. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 12, 201915 min

New Space Telescopes Could Look Like Giant Beach Balls

If we ever have giant inflatable telescopes in space, you can thank Chris Walker’s mom. Years ago, Walker was making chocolate pudding when he had to interrupt his culinary undertaking to field a phone call from his mother. He took the pudding off the stovetop, covered it with plastic wrap, and placed the pot on the floor by his couch. When the call was finished, he was startled to find an image of a lightbulb from a nearby lamp hovering over the end of the couch. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 12, 20197 min

The First Murder Case to Use Family Tree Forensics Goes to Trial

On a clear day, from the middle of a well-trafficked stretch of reinforced concrete that spans the Snoqualmie River, you can just make out the hulking, ice-covered flanks of Mount Rainier. Locals bring their dogs here to the “High Bridge” to swim on their lunch breaks; high school kids in oversized hoodies pick their way through the raspberry thickets looking for a shady spot to light up. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 11, 20199 min

The Heady, Thorny Journey to Decriminalize Magic Mushrooms

In an airy Denver cafe populated almost entirely by young people staring at laptops, Travis Tyler Fluck—dressed in an orange velour jacket, over which is draped a thin braided lock of hair—takes out his phone and pulls up Craigslist. A quick search lands him on a post advertising $10 magic mushrooms, with a poorly lit photo of said mushrooms. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 11, 20198 min

NASA Is Ready To Get Down To Space Business, and More News

NASA is welcoming for-profit companies to space, Californians are slipping out of their measles vaccinations, and we've got some Father's Day gift ideas for you. Here's the news you need to know, in two minutes or less. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 10, 20192 min

California’s Vaccination Rate Slips as Medical Exemptions Rise

In the last few years California has gained ground in its fight to protect children from infectious diseases. But new data released this week shows that the state’s vaccination rate declined for the second year in a row. Last fall 94.8 percent of California kindergartners had received all their shots, down from 95.6 in 2016-2017. That drop may look small, but California has about as many kindergartners as Wyoming has people. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 10, 20198 min

Monterey Bay Is a Natural Wonder—Poisoned With Microplastic

California’s Monterey Bay is one of the more pure, more dynamic coastal ecosystems on Earth. Otters—once hunted nearly to extinction—float among towering kelp forests, which themselves have rebounded thanks to the booming otter population’s appetite for kelp-loving sea urchins. Great whites visit from time to time, as do all manner of whales and dolphins. All told, it’s one of the greatest success stories in the history of oceanic conservation. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 7, 20197 min

What to Do About CO2? Try Stuffing It Into the Gulf of Mexico

What if Texas oilmen (oilfolks?) could save the planet from climate change? Hardy-har-har. Given that the Lone Star State ranks sixth in heat-trapping carbon emissions worldwide, just behind Germany and ahead of South Korea, the idea sounds pretty far-fetched. But some recent developments have made the prospect a bit more conceivable. Texas is all about oil and gas. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 7, 20196 min

Telemedicine Makes It Safe to Get Abortion Drugs in the Mail

Every restriction on access to abortion draws the metaphoric walls closer. On who can dispense drugs, on what clinical tests are required first, on how far along the pregnancy can be—the rules are all designed to delay, deter, and delegitimize. It’s a Death Star Trash Compactor. The box around abortion gets smaller and smaller. That’s policymaking; technology, meanwhile, tends to see boxes as something to think outside of. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 6, 20196 min

A Mythical Form of Space Propulsion Finally Gets a Real Test

Since the birth of the space age, the dream of catching a ride to another solar system has been hobbled by the “tyranny of the rocket equation,” which sets hard limits on the speed and size of the spacecraft we sling into the cosmos. Even with today’s most powerful rocket engines, scientists estimate it would take 50,000 years to reach our closest interstellar neighbor, Alpha Centauri. If humans ever hope to see an alien sunrise, transit times will have to drop significantly. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 6, 20197 min

Drugs That Boost Our Circadian Rhythms Could Save Our Lives

This story is part of a series on how we make time—from productivity hacks and long walks to altering the function of our own circadian clocks. Before there was electricity or the internet or screens illuminated by thousands of liquid crystals rotating polarized pulses of photons, humans mostly lived by the daily comings and goings of the yellow burning ball of gas in the sky. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 5, 20198 min

Tired: Eating Bugs. Wired: Eating Bug Meat Grown in a Lab

Depending on whom you ask, the future of food is plant-based burgers that bleed. Or we should all be eating insects instead of cows. Or we need to grow hamburgers in the lab by culturing cells, thus avoiding having to feed and hydrate legions of cows burping up greenhouse gases. Or how about we mash these up a bit: What if we grew not beef in the lab, but insect meat? According to a group of researchers at Tufts, culturing bugs could be easier and more efficient than culturing cow cells. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 5, 20197 min

The Military Is Locked in a Power Struggle With Wind Farms

When Lt. Col. Joseph Goana takes off in his T-38 Talon training jet, he flies a loop north toward the Red River, which forms a meandering border between north Texas and southern Oklahoma. For decades, the remote farming area has been an ideal training ground for Air Force pilots like Goana. But in recent years, he says there’s been a new obstacle: wind turbines that now generate a third of Oklahoma’s electricity and 17 percent of the power in Texas. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 4, 20197 min

A Study Exposes the Health Risks of Gene-Editing Human Embryos

A missing chunk of DNA, 32 base pairs long and smack in the middle of the CCR5 gene, might be the most studied mutation in human history. The spontaneous deletion, which arose thousands of years ago, has a striking relationship with one of the worst human diseases: HIV/AIDS. People who inherit this mutation from both of their parents are naturally immune. The only two people to have ever been cured both received bone marrow transplants from people who carry the Δ32 mutation. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 4, 20196 min

Everyone Needs a Good Pillow—Even Astronauts Bound for Mars

By all accounts sleeping in space is a dream. After a long day of running experiments and rigorous exercise, astronauts on the International Space Station retire to their padded sleep pods, which have just enough room to fit the astronaut, a laptop mounted to a wall, and a few practical items. To prevent themselves from drifting through the station while catching some zero-g z’s, astronauts snuggle into a sleeping bag mounted to the wall of their sleep pod. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 3, 20197 min

Why It’s So Hard to Predict Where a Tornado Will Strike

Editor’s note: This is a developing story about severe weather in the Midwest. We will update it as more information becomes available. This week brings atmospheric devastation to the Midwest: nearly 200 tornadoes have torn through the region since last Friday, including Jefferson City, the capital of Missouri, on Wednesday night. All told, the disasters have left at least three dead and 25 injured. Learn about your ad choices: dovetail.prx.org/ad-choices

Jun 3, 20197 min

Geothermal Energy Could Save the Climate—or Trigger Lots of Quakes

This story originally appeared on Grist and is part of the Climate Desk collaboration. Imagine if there was a carbon-free form of energy hiding in the ground beneath you. One that we could turn to anytime, even on cloudy, windless days. There’s no need for imagination: It exists. Research suggests that geothermal energy could be the key to running the country on purely renewable power. Learn about your ad choices: dovetail.prx.org/ad-choices

May 31, 20196 min

Military vs. Wind Farms, Facebook vs. Fake Accounts, and More News

The military is decidedly not here for wind farms, Facebook busted up more fake news accounts, and we have some advice for your next poo. Here's the news you need to know, in two minutes or less. Today's Headlines The military is locked in a struggle with wind farms Advocates say that wind power is a win-win: wind farms help struggling rural economies with a new source of revenue, while also helping wean utilities off of fossil fuels. Learn about your ad choices: dovetail.prx.org/ad-choices

May 29, 20192 min

This AI Uses Echolocation to Identify What You're Doing

Guo Xinhua wants to teach computers to echolocate. He and his colleagues have built a device, about the size of a thin laptop, that emits sound at frequencies 10 times higher than the shrillest note a piccolo can sustain. The pitches it produces are inaudible to the human ear. When Guo’s team aims the device at a person and fires an ultrasonic pitch, the gadget listens for the echo using its hundreds of embedded microphones. Learn about your ad choices: dovetail.prx.org/ad-choices

May 29, 20195 min

These Hidden Women Helped Invent Chaos Theory

A little over half a century ago, chaos started spilling out of a famous experiment. It came not from a petri dish, a beaker or an astronomical observatory, but from the vacuum tubes and diodes of a Royal McBee LGP-30. This “desk” computer—it was the size of a desk—weighed some 800 pounds and sounded like a passing propeller plane. Learn about your ad choices: dovetail.prx.org/ad-choices

May 28, 201917 min

Mysterious Midwest Tornadoes, Airbnb's NYC Truce, and More News

Tornadoes are tearing up the Midwest, Airbnb calls truce, and we've got some books for your long weekend. Here's the news you need to know, in two minutes or less. Today's Headlines Tornadoes are tearing up the midwest. So why are they so hard to predict? Over 200 tornadoes have hit the Midwest in the past week alone, wreaking havoc on the towns they pass through. Learn about your ad choices: dovetail.prx.org/ad-choices

May 28, 20192 min

For the Midwest, Epic Flooding Is the Face of Climate Change

Fierce storms lashed across the central US this week, unleashing hundreds of powerful tornadoes that carved a path of destruction through parts of Missouri and Oklahoma Wednesday night and left at least three dead. While the worst of the violent winds have passed, the region is now bracing for massive flooding, following record amounts of rain brought by the severe weather system and with more expected over the weekend. Learn about your ad choices: dovetail.prx.org/ad-choices

May 27, 20195 min

Measles Had Been Eliminated. Now It’s Nearly a Daily Threat

The year 2019 isn’t even halfway over yet, and it’s already the worst year for measles since NBC stopped airing episodes of Saved By The Bell. Since January 1, the rash- and fever-causing virus has sickened 880 people across 24 states. That’s more than all the cases of the past three years combined. Learn about your ad choices: dovetail.prx.org/ad-choices

May 24, 20198 min

Scientists Go Back in Time to Find More Troubling News About Earth's Oceans

Plankton don't get nearly the respect they deserve. These tiny organisms (phytoplankton being plant-like cells that produce much of the world’s oxygen, zooplankton being little animals) float around at the mercy of currents and form the very foundation of the ocean food web. You like whales? They eat krill, which eat, wait for it, plankton. You like your climate? Phytoplankton soak up CO2 and spit out oxygen, helping keep the planet a pleasant human habitat. Learn about your ad choices: dovetail.prx.org/ad-choices

May 24, 20196 min

A Rocket Built by Students Reached Space for the First Time

In the early morning of April 21, 10 students from the University of Southern California’s Rocket Propulsion Lab piled into the back of a pickup truck with a 13-foot rocket wedged between them and drove down a dusty dirt road to a launchpad near Spaceport America, in southern New Mexico. When they arrived, their teammates helped them lift the 300-pound rocket onto a launch rail. Dennis Smalling, the rocket lab’s chief engineer, began the countdown at 7:30 am. Learn about your ad choices: dovetail.prx.org/ad-choices

May 23, 20196 min

Abortion Bans Create a Public Health Nightmare

On Friday, the legislature of Missouri passed a ban on abortions, among the most extreme of any state. It prohibits any abortions after eight weeks of gestation, putting it among the category of misleadingly named “heartbeat bills” that use fetal cardiac activity as a marker for … well, illegality, really. Like a law signed earlier last week in Alabama, the Missouri bill contains no exceptions for cases of rape or incest. Learn about your ad choices: dovetail.prx.org/ad-choices

May 23, 201911 min

The Mystifying Case of the Missing Planets

After the sun formed, the dust and gas left over from its natal cloud slowly swirled into the eight planets we have today. Small, rocky things clung close to the sun. Gigantic gas worlds floated in the system’s distant reaches. And around countless stars in the galaxy, a version of this process repeated itself, forging plentiful planets in a spectrum of sizes — except, apparently, worlds just a tad bigger than Earth. Learn about your ad choices: dovetail.prx.org/ad-choices

May 21, 20197 min

Inside Facebook's New Robotics Lab, Where AI and Machines Friend One Another

At first glance, Facebook’s nascent robotic platform looks a bit … chaotic. In a new lab in its palatial Silicon Valley HQ, a red-and-black Sawyer robot arm (from the recently defunct company Rethink Robotics) is waving all over the place with a mechanical whine. It’s supposed to casually move its hand to a spot in space to its right, but it goes up, up, up and way off course, then resets to its starting position. Then the arm goes right, and gets pretty close to its destination. Learn about your ad choices: dovetail.prx.org/ad-choices

May 21, 20199 min

Inside Swamp Works, the NASA Lab Learning to Mine the Moon

This is a story about dust. Dust that can mold into the shape of an astronaut’s boot and remain unchanged for millennia. Dust that cuts like glass. Dust so fine that it brings billion-dollar machines to their pneumatic knees. Moondust. For Jason Schuler, a robotics engineer at NASA’s Swamp Works, in Florida, it’s an obsession. He works on machines that can extract, pulverize, mold, analyze, and protect against extraterrestrial dirt. Learn about your ad choices: dovetail.prx.org/ad-choices

May 21, 20198 min

Now Ocean Plastics Could Be Killing Oxygen-Making Bacteria

This planet has a problem with plastic. Not just the big masses of it accumulating in the Pacific, but with the tiny bits that are blowing into pristine mountaintop habitats. The flecks showing up in a range of sea creatures. The specks materializing even in human feces. Learn about your ad choices: dovetail.prx.org/ad-choices

May 20, 20196 min

5G Networks Could Throw Weather Forecasting Into Chaos

If you had a choice between a better, faster cell phone signal and an accurate weather forecast, which would you pick? That’s the question facing federal officials as they decide whether to auction off more of the wireless spectrum or heed meteorologists who say that such a move could throw US weather forecasting into chaos. On Capitol Hill Thursday, NOAA’s acting chief, Neil Jacobs, said that interference from 5G wireless phones could reduce the accuracy of forecasts by 30 percent. Learn about your ad choices: dovetail.prx.org/ad-choices

May 20, 20194 min

'Heartbeat' Bills Get the Science of Fetal Heartbeats All Wrong

Last week, Georgia governor Brian Kemp—the narrow winner over Stacey Abrams in a contentious, sketchy election last year—signed into law a ban on abortions after more than six weeks of pregnancy. That made Georgia the sixth state to institute such a ban, and the fourth this year (Ohio’s elected officials put theirs in place in April), with seven more states kicking around the idea. Learn about your ad choices: dovetail.prx.org/ad-choices

May 17, 20198 min

This Casino's Microgrid Might Be the Future of Energy

As the Fukushima disaster unfolded in Japan, the Blue Lake Rancheria, in Northern California, was dealing with its own crisis. Several miles inland and uphill from the Pacific Ocean, the 100 acres of tribal land had turned into a haven for roughly 3,000 coastal dwellers who were fleeing a feared tsunami from that same earthquake. A huge line of cars assembled at the Rancheria’s gas station; one young woman ran in circles, holding her baby and weeping. Learn about your ad choices: dovetail.prx.org/ad-choices

May 17, 201910 min

NASA Needs $1.6 Billion More to Send a Human to the Moon

NASA revealed Monday that it needs an additional $1.6 billion in funding for fiscal year 2020 to stay on track for a human return to the moon by 2024. The space agency's budget amendment comes in addition to the $21 billion the Trump administration asked Congress for in March. Ars Technica This story originally appeared on Ars Technica, a trusted source for technology news, tech policy analysis, reviews, and more. Ars is owned by WIRED's parent company, Condé Nast. Learn about your ad choices: dovetail.prx.org/ad-choices

May 16, 20195 min

What's So Special About Human Screams? Ask a Screamologist

I scream, you scream, we all scream. For ice cream, sure, but also for fear, excitement, sexual pleasure, pain, anger, and—if online commenters are to be believed—memes 😱. Screaming is exhibited by many animals, but no species uses this extreme vocalization in as many different contexts as humans. Though we're pretty good at recognizing a scream when we hear one, the wide variety of screams makes it difficult to pin down what defines them. Learn about your ad choices: dovetail.prx.org/ad-choices

May 16, 20196 min

The Chernobyl Disaster Might Have Also Built a Paradise

Until the 19th century, the Pripyat River basin on the border between Ukraine and Belarus was wetland and forest. As usual, humans kind of ruined it. They burned down forest for pasture land, or cut down trees to sell as timber—or for fuel to make glass and vodka. By the middle of the 20th century, most of that industry was gone, and human-driven reforestation efforts had remade the Pripyat region anew. Learn about your ad choices: dovetail.prx.org/ad-choices

May 15, 201910 min