In Tampa, the conference center’s roof leaked. In Austin, the airport flooded. In Reno, conference organizers had to wait until a motorcycle rally was over before they could do some setup. During preparation for the SC Conference, a supercomputing meeting, there’s always something getting in the way of networking. But the conference, held annually in November, is perhaps more sensitive to water, delays, and herds of bikes than your average gathering. Learn about your ad choices: dovetail.prx.org...
Nov 27, 2017•7 min
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Nov 27, 2017•5 min
Science and the people who study it have taken a pretty big beating during the first year of the Trump administration. Trump has appointed climate science skeptics and outright deniers to head the Environmental Protection Agency (Scott Pruitt), the Department of Energy (Rick Perry), and the Council on Environmental Quality (Kathleen Hartnett). Learn about your ad choices: dovetail.prx.org/ad-choices
Nov 23, 2017•8 min
On the last Monday of September, 32 field workers stepped onto a 15-acre experimental plot in an undisclosed part of Washington and made apple harvest history. The fruits they plucked from each tree were only a few months old. But they were two decades and millions of dollars in the making. And when they landed, pre-sliced and bagged on grocery store shelves earlier this month, they became the first genetically modified apple to go on sale in the United States. Learn about your ad choices: dovet...
Nov 22, 2017•8 min
Tesla just keeps making cool things. On the top of the list is its newest addition to the lineup, an all-electric semitruck. Oh, that might sound like a dumb idea—but I don't think so. Just consider how much stuff is shipped back and forth across the country. Clearly a train would be more efficient, but trucks also play a large role. It seems like the Tesla semi might be able to make two improvements over a traditional truck. Learn about your ad choices: dovetail.prx.org/ad-choices...
Nov 22, 2017•5 min
Prepping a satellite instrument for its journey into space can feel like getting ready to lift off yourself. The sensors on board are vulnerable to the slightest speck of contamination—so to get close, you have to suit up. Required clean room attire includes a hair net, face mask, paper suit, disposable boots, and surgical gloves. No notebooks allowed—only paper that doesn’t release fluff if you tear it—and no clicky ballpoint pens. They spit out tiny balls of ink. Learn about your ad choices: d...
Nov 21, 2017•7 min
It wasn’t just that people were getting sick—it was who. And how many. Hepatitis A is a viral disease that primarily attacks the liver, and if it gets serious—as it can in the elderly and immune-compromised people—it can be fatal. But the graph of cases in the US over time looks like the second, fun half of a roller coaster ride. In the early 1970s, nearly 10,000 people a year got it. By the mid-1980s, the number was half that. Learn about your ad choices: dovetail.prx.org/ad-choices...
Nov 20, 2017•9 min
To get to work in the morning, Omar Akbari has to pass through a minimum of six sealed doors, including an air-locked vestibule. The UC Riverside entomologist studies the world’s deadliest creature: the Aedes aegypti mosquito, whose bite transmits diseases that kill millions each year. But that’s not the reason for all the extra security. Akbari isn’t just studying mosquitoes—he’s re-engineering them with self-destruct switches. Learn about your ad choices: dovetail.prx.org/ad-choices...
Nov 17, 2017•9 min
No one can deny that there are some great physics videos out there in the wild internet. Today, I found this one floating around—featuring what appears to be a worker that needs to get out of a cone-shaped hole. Oh sure, he could possibly climb up the side or maybe even use a rope as an assist. But no. This guy studied his physics. He knows a great trick to get out of this hole—by running in circle. Learn about your ad choices: dovetail.prx.org/ad-choices...
Nov 16, 2017•5 min
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Nov 15, 2017•11 min
“Who are we?” That impossible question opened the 2015 public letter announcing a well-heeled SETI project called Breakthrough Listen. Dozens of people—scientists, astronauts, and also a producer, a chess champ, and a soprano—signed the note, which kicked off a $100 million effort by Russian billionaire Yuri Milner to catch signals from alien civilizations. That quest, Milner and the signatories hoped, would answer that existential query. Learn about your ad choices: dovetail.prx.org/ad-choices...
Nov 14, 2017•13 min
I can't help myself. When I'm out in the real world and I see something cool, I have to turn it into a physics problem. It's just what I do. In this case, I was changing planes in the Atlanta airport. Like many other airports, Atlanta has a mini subway to take you between terminals. You walk in, the doors shut and then it accelerates up to some traveling speed. At some point it slows down and stops so that you can get off and catch your plane. Learn about your ad choices: dovetail.prx.org/ad-cho...
Nov 13, 2017•8 min
The baby was still in diapers when the first blister appeared, ballooning red and angry from his pale, newborn skin. Soon, they became a regular feature on the map of his body, along with deep creases in his face when he howled out in pain. A doctor told the parents his LAMB3 gene had a glitch—his body wasn’t making enough of a protein to anchor the outer layer of his skin to the inner ones. For seven years they kept the blisters at bay. Learn about your ad choices: dovetail.prx.org/ad-choices...
Nov 10, 2017•6 min
In the aftermath of the massacre of 26 people in a small-town Texas church, you might have seen that the killer used a gun called an AR-15. It’s a popular weapon—relatively easy to use, endlessly customizable, military in appearance. How popular? It’s the same gun that a killer used in the massacre of 58 people at a Las Vegas concert last month, and by the killer who murdered 49 people in a nightclub in Orlando, and the one at an elementary school in Newtown, Connecticut. Learn about your ad cho...
Nov 09, 2017•14 min
If Jonathan Rothberg has a superpower, it’s cramming million-dollar, mainframe-sized machines onto single semiconductor circuit boards. The entrepreneurial engineer got famous (and rich) inventing the world’s first DNA sequencer on a chip. And he’s spent the last eight years sinking that expertise (and sizeable startup capital) into a new venture: making your smartphone screen a window into the human body. Learn about your ad choices: dovetail.prx.org/ad-choices...
Nov 08, 2017•9 min
It’s a fallish day in the Allegheny Mountains of West Virginia, the rural home of Green Bank Observatory and the world’s largest fully steerable telescope. Rippled clouds hang low over the site’s hulking 100-meter radio dish, itself undergirded and overhung by bright white scaffolding. The browning leaves are nearly gone. And the visitor center director, Sherry McCarty, has agreed to give me the astronomy center’s new SETI tour ($40, reservations required). Learn about your ad choices: dovetail....
Nov 07, 2017•8 min
Recently, I gave my introductory physics course a fairly standard problem, based on the Matter and Interactions textbook. I've modified the question, but it goes something like this: You have a spacecraft with a mass of 100 kilograms, moving near Mars (the planet, not the candy bar). At one point, it is traveling at a speed of 1,100 m/s, flying 5 x 107 meters from the center of the planet. At a later point, the spacecraft reaches a new altitude, flying 8.6 x 107 meters from the center. Learn abo...
Nov 06, 2017•10 min
From the air, the largest glacier on the biggest ice sheet in the world looks the same as it has for centuries; massive, stable, blindingly white. But beneath the surface it’s a totally different story. East Antarctica’s Totten Glacier is melting, fast, from below. Thanks to warm ocean upwellings flowing into the glacier—in some places at the rate of 220,000 cubic meters per second—it’s losing between 63 and 80 billion tons of previously frozen fresh water every year. Learn about your ad choices...
Nov 03, 2017•8 min
When someone takes their own life, they leave behind an inheritance of unanswered questions. “Why did they do it?” “Why didn’t we see this coming?” “Why didn’t I help them sooner?” If suicide were easy to diagnose from the outside, it wouldn’t be the public health curse it is today. In 2014 suicide rates surged to a 30-year high in the US, making it now the second leading cause of death among young adults. Learn about your ad choices: dovetail.prx.org/ad-choices...
Nov 02, 2017•7 min
By any measure, the fires that tore through Northern California were a major disaster. Forty-two people are dead, and 100,000 are displaced. More than 8,400 homes and other buildings were destroyed, more than 160,000 acres burned—and the fires aren’t all out yet. That devastation leaves behind another potential disaster: ash. No one knows how much. It’ll be full of heavy metals and toxins—no one knows exactly how much, and it depends on what burned and at what temperature. Learn about your ad ch...
Nov 01, 2017•10 min
It's Halloween time. For many, this time of the year means there are lots of cool costumes. For others, it's all about the candy. Now, I'm not a big fan of candy—but I am a big fan of analyzing stuff. So here we go: I'm going to look at the energy density for candy. Sure, I could just look this up—but it's much more fun to determine it for myself. Let's get started by going to the store. I am going to look at a bunch of different candy options and get some data. Learn about your ad choices: dove...
Oct 31, 2017•4 min
Late at night, I tend to flip through the channels just to see what's up. If there's a good movie on, I might watch part of it—and recently, I stumbled on Iron Man 3. I know what you're gonna say—that's a terrible superhero movie. But I disagree. Fantastic Four, now that's a terrible superhero movie. Iron Man 3 wasn't so bad. Especially not that part where Tony Stark has to go to the store and MacGyver his way into a temporary suit. Learn about your ad choices: dovetail.prx.org/ad-choices...
Oct 30, 2017•9 min
Stay on target. That’s the mantra you hear in labs and biotech companies around the world as they snip away at DNA. All the techniques for gene editing—from the famous Crispr-Cas9 to the older TALENs and zinc-finger nucleases—share a problem: Sometimes they don’t work. Which is to say, they have “off-target effects,” changing a gene you don’t want changed or failing to change a gene that you do. And DNA is not something you want poorly rewired. Learn about your ad choices: dovetail.prx.org/ad-ch...
Oct 27, 2017•10 min
Half-eaten doughnuts hit the bottom of waste bins around the world this week, as news feeds spread word of a new dietary danger. Yes, headlines declared, a new study shows that sugar is the favorite food of cancer. Cancer. “This link between sugar and cancer has sweeping consequences,” wrote Johan Thevelein, a Belgian biologist and co-author of the study published last Friday in the journal Nature Communications. Sweeping is right. Learn about your ad choices: dovetail.prx.org/ad-choices...
Oct 26, 2017•6 min
Paperclips, a new game from designer Frank Lantz, starts simply. The top left of the screen gets a bit of text, probably in Times New Roman, and a couple of clickable buttons: Make a paperclip. You click, and a counter turns over. One. The game ends—big, significant spoiler here—with the destruction of the universe. Learn about your ad choices: dovetail.prx.org/ad-choices
Oct 25, 2017•12 min
I'll be honest—I don't know as much about DC superheroes as Marvel superheroes. Still, I'm pretty excited about the upcoming DC movie Justice League. As a kid, I dressed up as Aquaman; my mother was pretty good at making stuff and so she made costumes for me and my two brothers. The other two costumes were Robin and Superman—the unifying theme being that they don't have complicated masks. Learn about your ad choices: dovetail.prx.org/ad-choices...
Oct 24, 2017•7 min
The pandemic of sexual harassment and abuse—you saw its prevalence in the hashtag #metoo on social media in the past weeks—isn’t confined to Harvey Weinstein’s casting couches. Decades of harassment by a big shot producer put famous faces on the problem, but whisper networks in every field have grappled with it forever. Last summer, the story was women in Silicon Valley. Last week, more men in media. Learn about your ad choices: dovetail.prx.org/ad-choices...
Oct 23, 2017•11 min
When a raindrop falls in San Francisco, it has two choices: flow east into the San Francisco Bay, or west into the Pacific Ocean. A ridgeline divides the city into two, slicing through the Presidio, hugging the eastern edge of Golden Gate Park, and skirting Twin Peaks. As the land drops off in either direction, the elevation difference doesn’t just drive raindrops downhill—it also moves human waste. Learn about your ad choices: dovetail.prx.org/ad-choices...
Oct 20, 2017•11 min
Three years later, in 2005, Ishiguro unveils Repliee Q1 Expo to the public. Modeled on a grown woman (a popular Tokyo newscaster) and produced with better funding, this version can move its upper body fluidly and lip-synch to recorded speech. Ishiguro’s lab conducts several studies with it; the results are featured in a major Japanese robotics journal; the lab is filmed for television; he hears about a copycat android in South Korea. Learn about your ad choices: dovetail.prx.org/ad-choices...
Oct 18, 2017•1 hr 17 min
One of the great things about movies set in space is that the writers have the opportunity to come up with some fantastically crazy situations. Just look at the planet Sovereign, revealed at the beginning of Guardians of the Galaxy Vol. 2. Don't worry about why the Guardians are on this planet too much—instead, let's just focus on the planet itself. It looks something like this: It's fantastically awesome—and I'm OK with that. However, there is a small physics problem here. Learn about your ad c...
Oct 18, 2017•7 min
