Pinpointing the origins of SARS-CoV-2, and making vortex beams of atoms

Pinpointing the origins of SARS-CoV-2, and making vortex beams of atoms

Staff Writer Jon Cohen joins host Sarah Crespi to discuss the many theories circulating about the origins of SARS-CoV-2 and why finding the right one is important. Next, Ed Narevicius, a professor in the chemical and biological physics department at the Weizmann Institute of Science, talks with Sarah about creating vortex beams of atoms—a quantum state in which the phase of the matter wave of an atom rotates around its path, like a spiral staircase. This week’s episode was produced with help from Podigy. [Image: Alon Luski et al./Science 2021; Music: Jeffrey Cook] [Alt text: vortex beams showing holes in the center of the beam] Authors: Sarah Crespi; Jon Cohen Learn more about your ad choices. Visit megaphone.fm/adchoices

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Episoder(641)

Grappling with declining populations, and the future of quantum mechanics

Grappling with declining populations, and the future of quantum mechanics

First up on the podcast, Science celebrates 100 years of quantum mechanics with a special issue covering the past, present, and future of the field. News Contributing Correspondent Zack Savitsky joins...

4 Des 202538min

When we’ll hit peak carbon emissions, and macaques that keep the beat

When we’ll hit peak carbon emissions, and macaques that keep the beat

First up on the podcast, when will the world hit peak carbon emissions? It’s not an easy question to answer because emissions cannot be directly measured in real time. Instead, there are proxies, sate...

27 Nov 202526min

A headless mystery, and a deep dive on dog research

A headless mystery, and a deep dive on dog research

First up on the podcast: the mysterious fate of Europe’s Neolithic farmers. They arrived from Anatolia around 5500 B.C.E. and began farming fertile land across Europe. Five hundred years later, their ...

20 Nov 202532min

Solving the ‘golfer’s curse’ and using space as a heat sink

Solving the ‘golfer’s curse’ and using space as a heat sink

First up on the podcast, Online News Editor David Grimm joins host Sarah Crespi for a rundown of online news stories. They talk about lichen that dine on dino bones, the physics of the lip-out problem...

13 Nov 202528min

Understanding early Amazon communities and saving the endangered pocket mouse

Understanding early Amazon communities and saving the endangered pocket mouse

First up on the podcast, Contributing Correspondent Sofia Moutinho visited the Xingu Indigenous territory in Brazil to learn about a long-standing collaboration between scientists and the Kuikuro to b...

6 Nov 202535min

Detecting the acidity of the ocean with sound, the role of lead in human evolution, and how the universe ends

Detecting the acidity of the ocean with sound, the role of lead in human evolution, and how the universe ends

First up on the podcast, increased carbon dioxide emissions sink more acidity into the ocean, but checking pH all over the world, up and down the water column, is incredibly challenging. Staff Writer ...

30 Okt 202545min

The contagious buzz of bumble bee positivity, and when snow crabs vanish

The contagious buzz of bumble bee positivity, and when snow crabs vanish

First up on the podcast, the Bering Sea’s snow crabs are bouncing back after a 50-billion-crab die-off in 2020, but scientists are racing to predict what’s going to happen to this important fishery. C...

23 Okt 202527min

Hunting ancient viruses in the Arctic, and how ants build their nests to fight disease

Hunting ancient viruses in the Arctic, and how ants build their nests to fight disease

First up on the podcast, Contributing Correspondent Kai Kupferschmidt takes a trip to Svalbard, an Arctic archipelago where ancient RNA viruses may lie buried in the permafrost. He talks with host Sar...

16 Okt 202526min

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