It might not be apparent unless you're driving through the mid-longitudes of Interstate 70, but around 40 percent of the land in the United States is farmland. Understanding what happens on that acreage is complicated—for individual farmers and agricultural conglomerates. Understanding how to improve what’s going on is even harder. That’s why Granular—a farm software business under the agriculture division of DowDuPont—penned a deal with Planet. Learn about your ad choices: dovetail.prx.org/ad-c...
Mar 21, 2018•7 min
This year, nearly 1.7 million Americans will be diagnosed with cancer. Most will find out in the usual way; after having tiny blobs of tissue slurped up through a needle, smeared and stained on a slide, and put under the discerning eye of a pathologist. But starting this week, Medicare patients with advanced cancers will have access to a more 21st century diagnostic: Their cells can now be sequenced, matching patients with the drugs most likely to make a difference. Learn about your ad choices: ...
Mar 20, 2018•4 min
If you want to avoid getting sick on a plane, the worst place to sit, according to Charles Gerba, is along the aisle. The issue is exposure—not just to other passengers, but anything they touch. That means obvious hot spots (arm rests, tray tables, in-flight magazines) and less-obvious ones like aisle seats, which people use to steady themselves as they move about the cabin, frequently on their way to and from a lavatory. Oh right, lavatories. Don't get Gerba started on those. Learn about your a...
Mar 20, 2018•11 min
The bionic hand closes slowly. Its slender metal digits whirr as they jitter into a loose fist, as though they are wrapping around an invisible baton. "OK, closed," says the test subject. The test subject is Amanda Kitts. In 2006, a Ford F350 hit her Mercedes sedan head-on. The collision rent the truck's tire from its chassis and shoved the axle into Kitts' car, where it nearly severed her arm. "It wasn't completely off, but it was mincemeat," she says. "There was no saving it. Learn about your ...
Mar 19, 2018•11 min
In the early 2000s, Greg Wyler, former founder of a semiconductor company, was laying fiber in Africa. He wanted to do something that mattered. Semiconductors didn’t matter, you know? But linking people to each other and to information did, he thought. “The lesser educated version of myself said, ‘Fiber is the answer,'" says Wyler. "'I’ll run it everywhere.’” He didn’t run it everywhere, though he did run it quite a few places in Africa. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 19, 2018•10 min
It took ten years to build the Maverick, a dorm-fridge-sized box that takes in a cartridge with a little bit of blood—more than a drop but, you know, not a pint, either—and spits out new knowledge. On the cartridge is a silicon chip carved with antibody-lined channels; if any of a range of molecules that signal things like celiac disease are floating around, they stick to the antibodies, changing the way the channel reflects infrared light. The machine goes ping. (Not literally. Learn about your...
Mar 16, 2018•10 min
It’s hard to pick which species to save in Brazil right now. Yellow fever is tearing through primate populations, wiping out squirrel and howler monkeys. Poachers are nabbing giant anteaters for meat and blue macaws to sell as exotic pets. But conservation biologist Rogério Zacariotti wants to save a venomous yellow viper—the golden lancehead. But the snake isn't making it easy for him. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 16, 2018•7 min
For arguably the most famous physicist on Earth, Stephen Hawking—who died Wednesday in Cambridge at 76 years old—was wrong a lot. He thought, for a while, that black holes destroyed information, which physics says is a no-no. He thought Cygnus X-1, an emitter of X-rays over 6,000 light years away, wouldn’t turn out to be a black hole. (It did.) He thought no one would ever find the Higgs boson, the particle indirectly responsible for the existence of mass in the universe. Learn about your ad cho...
Mar 15, 2018•6 min
On March 4, an embryologist at Pacific Fertility Center was doing a routine walk-through of the clinic’s collection of waist-high steel tanks, each one filled with thousands of liquid nitrogen-bathed vials of frozen sperm, eggs, and embryos. Learn about your ad choices: dovetail.prx.org/ad-choices
Mar 15, 2018•9 min
It is once again Pi Day (March 14—which is like the first digits of pi: 3 and 14). Before getting into this year's celebration of pi, let me just summarize some of the most important things about this awesome number. Outside the US, Pi Day should probably be July 22 (22/7)—this fraction is a surprisingly good estimate of pi. You can find the value of pi with a mass and a spring. The value of pi is related to the local gravitational field. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 14, 2018•5 min
It’s that time of the year again, when massive winter storms lash the eastern United States and your uncle posts on Facebook about how it proves climate change is a hoax. After all, why would you still need a good coat on a warming planet? The fallacy is, of course, that weather is not the same as climate—though the two are intertwined in sometimes surprising ways. Learn about your ad choices: dovetail.prx.org/ad-choices
Mar 14, 2018•6 min
Built well, a city should provide a bulwark against disaster. Fundamentally, all cities are fortresses. Or at least they should be. If a city is a fortress, where’s the wall? The edges of North American cities today aren’t edge-like at all. Most of them, especially in the West, ooze outward in a gradient, urban to suburban to exurban to rural to wild. Learn about your ad choices: dovetail.prx.org/ad-choices
Mar 13, 2018•5 min
I make it my job to hunt through all the best trailers and find some cool physics thing to explore. In this case, it's the trailer for Solo: A Star Wars Story—the Han Solo-led movie, scheduled to come out in May, that takes place some time before Episode IV: A New Hope. Right at the beginning, we see Han driving some type of speeder in a chase scene, taking a super-sharp turn with another speeder in pursuit. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 13, 2018•6 min
“We don’t have much ground truth in biology.” According to Barbara Engelhardt, a computer scientist at Princeton University, that’s just one of the many challenges that researchers face when trying to prime traditional machine-learning methods to analyze genomic data. Learn about your ad choices: dovetail.prx.org/ad-choices
Mar 12, 2018•18 min
The first fully autonomous ground vehicles hitting the market aren’t cars or delivery trucks—they’re robo-farmhands. The Dot Power Platform is a prime example of an explosion in advanced agricultural technology, which Goldman Sachs predicts will raise crop yields 70 percent by 2050. But Dot isn’t just a tractor that can drive without a human for backup. Learn about your ad choices: dovetail.prx.org/ad-choices
Mar 12, 2018•3 min
There’s hope for a tastier, healthier, more robust tomorrow: high-tech new food preservation methods that fend off the bad stuff (bacteria, spoilage) while protecting the good (flavor, texture, nutrients). Scientists are experimenting with everything from microwave sterilization to blasts of plasma to ensure food stays appetizing longer—even without refrigeration. That salmon dinner you bought on Monday? It’ll taste just as fresh a week later. Learn about your ad choices: dovetail.prx.org/ad-cho...
Mar 09, 2018•3 min
The world is full of water, flushing down our toilets and flowing from our taps. And yet where I live, in the American Southwest, and quite possibly where you live, the kind of water people need to survive is getting harder to come by. Across the region, temperatures are rising and droughts are getting more severe, and in the coming decades the West will struggle to supply the water its residents and businesses demand. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 09, 2018•5 min
Fixing the effects of climate change on Earth isn’t complicated. When you get down to it, all we humans need to save the world is ingenuity, grit, cooperation, and $53 trillion. Where is humanity supposed to come up with that kind of cash at this time of night? The International Energy Agency says Earth needs those trillions invested in energy supply and efficiency by 2035 to keep global warming below 2 degrees C. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 08, 2018•10 min
If you move to the San Francisco Bay Area, prepare to pay some of the most exorbitant home prices on the planet. Also, prepare for the fact that someday, your new home could be under water—and not just financially. Sea level rise threatens to wipe out swaths of the Bay's densely populated coastlines, and a new study out today in Science Advances paints an even more dire scenario: The coastal land is also sinking, making a rising sea that much more precarious. Learn about your ad choices: dovetai...
Mar 08, 2018•5 min
America doesn't have good data on guns. Blame the Dickey amendment. First introduced in 1996, the legislation didn't ban gun investigations explicitly (it forbade the use of federal dollars in the advocacy or promotion of gun control), but Congress that year also cut the budget for the Centers for Disease Control and Prevention by the exact amount it had previously devoted to firearm research. It's had a chilling effect on the field ever since. Learn about your ad choices: dovetail.prx.org/ad-ch...
Mar 07, 2018•1 min
In the last 20 years, genealogy websites have attracted more than 15 million customers by promising insights into your past. Maybe you’ll uncover a secret infidelity or be reunited with a long-lost cousin, like when Larry met Bernie on Finding Your Roots. It’s deeply personal, affecting stuff. But when your family tree contains thousands, millions, even tens of millions of people, it’s no longer a personal history. It’s human history. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 07, 2018•6 min
By design, the downtown San Francisco storefront offices of Forward feel more like a spa or a ritzy skin care boutique than a doctors’ office. But the latter thing is true. Despite the sun shining through floor-to-ceiling windows onto pastel walls, blond-wood surfaces and no check-in desk in sight (attractive, casually dressed receptionists with iPads offer you a water), Forward is a concierge medical service. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 06, 2018•10 min
You can’t see the bunny, but the picosecond laser certainly can. In a lab at Stanford, engineers have set up a weird contraption, hiding a toy bunny behind a T-shaped wall. And their complex system of computation and rapidly firing lasers can see around that corner. So, too, could the self-driving cars of the future. Learn about your ad choices: dovetail.prx.org/ad-choices
Mar 06, 2018•6 min
Since early Friday morning, calls have been crackling across the Duxbury Fire Department dispatch center in a barrage of static. “Tree down on a house on Mayflower Street.” “Wires down on at Keene Street and Congress.” The seaside Massachusetts town is now firmly in the grips of Winter Storm Riley, the massive Nor’Easter forecasted to explosively develop through the weekend across a 700-mile swath of New England. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 05, 2018•4 min
Enough. It's time. You've decided to reclaim your morning commute by spending it on something substantive. No more bottomless Instagram feeds and auto-playing YouTube videos for you! So out the door you stride with that week's New Yorker wedged beneath your arm, a new episode of Flash Forward playing in your ear, or the latest Jesmyn Ward novel cued up on your Kindle app. So far so substantive. But it doesn't last. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 05, 2018•8 min
Earth got a warning shot on January 25, 2016. On that day, Air Force engineers were scheduled to kill off a GPS satellite named SVN-23—the oldest in the navigation constellation. SVN-23 should have just gone to rest in peace. But when engineers took it offline, its disappearance triggered, according to the National Institute of Standards and Technology, a software bug that left the timing of some of the remaining GPS satellites—15 of them—off by 13.7 microseconds. Learn about your ad choices: do...
Mar 02, 2018•10 min
The robotic platform heaves, as if breathing. Atop it stretches a piece of white gauze with a blue line painted down the middle. Along this line another robot snips with little surgical scissors, waiting for the platform to come to a brief rest before making a cut. And another snip, and rest. And another, and rest, on down the line. This could be you one day. Not that you’ll turn into a robot—you may go under the knife of a machine working as a surgical assistant. Learn about your ad choices: do...
Mar 02, 2018•5 min
There are quite a few fundamental constants. These are things like the speed of light (c) the charge on an electron (e), and the Planck constant (h). These constants are determined with some type of interesting experiment. The first values of these constants were often difficult to find—the speed of light, for example, was calculated by tracking the moons of Jupiter. Of course, now we have much better methods to get a very precise value for the speed of light. Learn about your ad choices: doveta...
Mar 01, 2018•7 min
Female scientists were reporting sexual abuse and harassment by professors years before the #MeToo movement exploded in the public eye last fall. From unwanted comments and weird texts to missed promotions and direct assaults, female graduate students and postdocs are often vulnerable while working in male-dominated field camps, laboratories, or remote observatories where there are few places to turn for help. Learn about your ad choices: dovetail.prx.org/ad-choices...
Mar 01, 2018•6 min
In October 2013, a moon-orbiting NASA spacecraft aimed a laser beam at Earth, 239,000 miles away. Within seconds, the intended recipient—an observatory in southern California—locked onto the beam of infrared light, invisible to the naked eye. Encoded inside the light was a high-definition video of NASA administrator Charles Bolden delivering a short speech. Bolden had, of course, recorded the video on Earth. Learn about your ad choices: dovetail.prx.org/ad-choices...
Feb 28, 2018•8 min
