Science, Spoken

Book a night at LAX’s Residence Inn and you may be fortunate enough to meet an employee named Wally. His gig is relatively pedestrian—bring you room service, navigate around the hotel's clientele in the lobby and halls—but Wally’s life is far more difficult than it seems. If you put a tray out in front of your door, for instance, he can’t get to you. If a cart is blocking the hall, he can’t push it out of the way. Learn about your ad choices: dovetail.prx.org/ad-choices

You have instant communication, on-demand entertainment, and dial-up transportation—why should you have to wait nine months to see what kind of baby you’re going to have? Now there’s an app for that. In a modern-day reboot of Lindsay Bluth’s “Mommy What Will I Look Like” business venture, Denver-based startup HumanCode has introduced BabyGlimpse. Learn about your ad choices: dovetail.prx.org/ad-choices

For one dizzying, schmooze and booze-filled week every January, thousands of tech execs, VCs, and investment bankers grind their way through a four-day slog of panel sessions, poster presentations, networking meetings, and cocktail-drenched after-hours parties in their industry’s premier orgiastic dealmaking event. And no, we’re not talking about CES. On Monday, the Westin St. Francis hotel in downtown San Francisco opened its doors to the 36th annual J.P. Learn about your ad choices: dovetail.prx.org/ad-choices

Locked away beneath the surface of Mars are vast quantities of water ice. But the properties of that ice—how pure it is, how deep it goes, what shape it takes—remain a mystery to planetary geologists. Those things matter to mission planners, too: Future visitors to Mars, be they short-term sojourners or long-term settlers, will need to understand the planet's subsurface ice reserves if they want to mine it for drinking, growing crops, or converting into hydrogen for fuel. Learn about your ad choices: dovetail.prx.org/ad-choices

If you want to build and run a $70 million dark matter detector, you're going to have a hefty shopping list. You'll need to buy hundreds of photomultiplier tubes, set up elaborate electronics, and pay graduate students, for starters. And 20 percent of your cash is going to go to just one thing: xenon gas. You'll need 200 steel bottles of the stuff, purified from the Earth’s atmosphere, at a price that can fluctuate wildly around $100,000 a bottle. Learn about your ad choices: dovetail.prx.org/ad-choices

The pig looks like any other pig, only it's been wearing a backpack for a week—in the name of science. Just behind its head sits a control box, with a battery and processor, from which runs a cable that enters through the pig’s flank. Once inside, the cable attaches to a very special robot clamped onto the pig's esophagus, the pathway to the stomach. Little by little, the robot lengthens, in turn lengthening the tube. The robot attached to a segment of esophagus.Damian et al. Learn about your ad choices: dovetail.prx.org/ad-choices

In a recent episode of Mythbusters, Brian and Jon (the new MythBusters) wanted to see what happens when you shoot an arrow straight up into the air. It will obviously come back down—but would it still be moving fast enough to kill you? If you are a MythBuster, the best option is to actually shoot an arrow straight up into the air and measure its velocity on impact. But for normal people, it might be better to just calculate the final arrow speed. Learn about your ad choices: dovetail.prx.org/ad-choices

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For the past several years, Nenad Bursac has been trying to make muscles from scratch. A biological engineer at Duke, Bursac came close in 2015, when his lab became the first to grow functional human skeletal muscle in culture. "Functional" being the operative word. Like the muscle fibers in, say, your bicep, the tissues could contract and generate forces in response to things like electrical pulses and shots of chemicals. Learn about your ad choices: dovetail.prx.org/ad-choices

When it comes to tackling the opioid crisis, public health workers start with the drugs: fentanyl, morphine, heroin. But biochemists have a different focus: Not the opioids, but opioid receptors—the proteins the drugs latch onto within the body. These receptors embed themselves in the walls of cells throughout the brain and peripheral nervous system. Learn about your ad choices: dovetail.prx.org/ad-choices