Science, Spoken

Latest Episodes:

Astronomers Discovered 12 New Moons Around Jupiter. Here's How Jul 17, 2018

Show notes

Sometimes a search for one thing presents the chance to look for something else. If you're like me, that something else is usually something small: Rummaging in the couch cushions for the TV remote might prompt you to dig for spare change. Two birds, one stone, etc. But if you're astronomer Scott Sheppard, the second bird occasionally turns out to be a doozy. Or several doozies.

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How Is a Runner Like a Bouncing Ball? Jul 17, 2018

Show notes

There are so many real-world physics problems involved in running. Lots of physicists have been inspired, for instance, by the crazy-fast speeds of Usain Bolt. Just take a look at this paper, "On the performance of Usain Bolt in the 100 m sprint" (European Journal of Physics), in which the authors examine the motion of Usain in one of his sprints. But what if you want to look at more .

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This Company Wants Your Fertility Data Jul 16, 2018

Show notes

When Piraye Beim went to her first OBGYN visit more than two decades ago, she got a pap smear and an earful about avoiding STDs. She didn’t learn in that visit that the fact she was having excruciating periods as a teenager might mean she could have trouble conceiving later in life. She definitely didn’t hear the words “reproductive health” come out of her doctor’s mouth. Like nearly 10 percent of women, Beim has lived with endometriosis her whole adult life.

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Robots Can't Hold Stuff Very Well. But You Can Help Jul 16, 2018

Show notes

Imagine, for a moment, the simple act of picking up a playing card from a table. You have a couple of options: Maybe you jam your fingernail under it for leverage, or drag it over the edge of the table. Now imagine a robot trying to do the same thing. Tricky: Most robots don’t have fingernails, or friction-facilitating fingerpads that perfectly mimic ours. So many of these delicate manipulations continue to escape robotic control.

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The Ultimate Carbon-Saving Tip? Travel by Cargo Ship Jul 13, 2018

Show notes

By the end of June, Kajsa Fernström Nåtby was homesick. The native Swede had just finished a 5-month internship with her country’s diplomatic office near the UN headquarters in Manhattan, darting between debates on migration and ocean plastic. Now, her parents were pleading for her to hop on an 8-hour flight across the Atlantic and rush home. But Fernström Nåtby had a different idea.

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What's a Blazar? A Galactic Bakery for Cosmic Rays Jul 13, 2018

Show notes

In 1911 and 1912, an Austrian physicist named Victor Hess took to the sky in a series of risky hot air balloon trips—for science. Down on land, researchers had been registering signals of mysterious energetic particles on their instruments. They didn’t know what the signals were or where they came from. So in progressively thinning air, more than three miles off the ground, Hess performed experiments to figure out if the particles came from above or below.

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Inside the Test Chamber for NASA's Astronaut Vehicle Double Jul 12, 2018

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Inside an 80-foot-tall chamber on Lockheed Martin’s Denver-area campus, backgrounded by red-rock ridges, stands a hulking spacecraft. You have to crane your neck to see the top of the apparatus. At the bottom, wires spew from a porthole to snake up and down and away. The cylindrical structure flows into a duller, funnel-like cone, which tapers into a tower with rocket nozzles. Next to it, the blue scaffolds of an indoor crane resemble a launchpad gantry.

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Facebook Opens Its Private Servers to Scientists Studying Fake News Jul 12, 2018

Show notes

This much is obvious: What the world needs now is less fake news. In general, sure, but particularly on the planet's leading source of information: Facebook. The thing is, to separate the informational wheat from the disinformational chaffe, what you actually need is a better definition of fake news. And that's… well… less obvious. "What does it mean, exactly? It's not always clear.

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Flattened Fluids Help Scientists Understand Oceans and Atmospheres Jul 11, 2018

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Turbulence, the splintering of smooth streams of fluid into chaotic vortices, doesn’t just make for bumpy plane rides. It also throws a wrench into the very mathematics used to describe atmospheres, oceans and plumbing. Turbulence is the reason why the Navier-Stokes equations—the laws that govern fluid flow—are so famously hard that whoever proves whether or not they always work will win a million dollars from the Clay Mathematics Institute.

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Can Your Electronic Gadgets Interfere With Your Compass? Jul 11, 2018

Show notes

Does it matter if you put a video camera near your magnetic compass that is used for navigation? The theoretical answer is "yes." But the practical answer? "Probably not." Now for a detailed explanation! How does a magnetic compass work? So, the Earth is like a giant magnet, just like that bar magnet that picks up paperclips. For this giant Earth-magnet, the north end is in Antartica and the south end is in the Arctic. Yes, the North Pole of the Earth is the south pole of the Earth's magnet.

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