Tag Archives: Science

Science: Computer AI That Debates, Sea Slugs Regrow Entire Bodies (Podcast)

A computer that can participate in live debates against human opponents.

In this episode:

00:43 AI Debater

After thousands of years of human practise, it’s still not clear what makes a good argument. Despite this, researchers have been developing computer programs that can find and process arguments. And this week, researchers at IBM are publishing details of an artificial intelligence that is capable of debating with humans.

Research Article: Slonim et al.

News and Views: Argument technology for debating with humans

10:30 Research Highlights

The sea slugs that can regrow their whole body from their severed head, and evidence of high status women in ancient Europe.

Research Highlight: Now that’s using your head: a sea slug’s severed noggin sprouts a new body

Research Highlight: A breathtaking treasure reveals the power of the woman buried with it

12:56 Briefing Chat

We discuss some highlights from the Nature Briefing. This time, the next generation of gravitational wave detectors, and why 2020 was a record-breaking year for near-Earth asteroids.

Science: Gravitational Wave Detectors & Special Oil Spill Cleanup Sponges

Science Staff Writer Adrian Cho joins host Sarah Crespi to talk about plans for the next generation of gravitational wave detectors—including one with 40-kilometer arms. 

 The proposed detectors will be up to 10 times more sensitive than current models and could capture all black hole mergers in the observable universe.

Sarah also talks with Pavani Cherukupally, a researcher at Imperial College London and the University of Toronto, about her Science Advances paper on cleaning up oil spills with special cold-adapted sponges that work well when crude oil gets clumpy.

Science Podcast: 2000-Year-Old Pet Cemetary, Eyeless Worms See Color

Science’s Online News Editor David Grimm joins host Sarah Crespi to talk about a 2000-year-old pet cemetery found in the Egyptian city of Berenice and what it can tell us about the history of human-animal relationships. 

Also this week, Dipon Ghosh, a postdoctoral fellow at the Massachusetts Institute of Technology, talks about how scientists missed that the tiny eyeless roundworm Caenorhabditis elegans, which has been intensively studied from top to bottom for decades, somehow has the ability to detect colors. 

Science Podcast: Unequal Surge In Research Papers, Energy Without Oxygen

The pandemic’s unequal toll on the research community, and a newly discovered mitochondria-like symbiosis.

In this episode:

00:48 The pandemic’s unequal toll on researchers

Although 2020 saw a huge uptick in the numbers of research papers submitted, these increases were not evenly distributed among male and female scientists. We look at how this could widen existing disparities in science, and damage future career prospects.

Editorial: COVID is amplifying the inadequacy of research-evaluation processes

09:18 Research Highlights

How a parasite can make viral infections more deadly, and the first known space hurricane.

Research Highlight: Intestinal worms throw open the door to dangerous viruses

Research Highlight: The first known space hurricane pours electron ‘rain’

11:36 Energy without oxygen

Millions of years ago, a microscopic protist swallowed a bacterium and gained the ability to breathe nitrate. This relationship partially replaced the cell’s mitochondria and allowed it to produce abundant energy without oxygen. This week, researchers describe how this newly discovered symbiosis works.

Research Article: Graf et al.

News and Views: A microbial marriage reminiscent of mitochondrial evolution

19:22 Briefing Chat

We discuss some highlights from the Nature Briefing. This time, the weakening of the Gulf Stream, and a new satellite to monitor deforestation in the Amazon.

The Guardian: Atlantic Ocean circulation at weakest in a millennium, say scientists

Science: Brazil’s first homemade satellite will put an extra eye on dwindling Amazon forests

Science & Exploration: ‘Deep-Sea Soft Robots’

Is the future of deep-sea exploration soft? Researchers have developed a new type of soft robot designed to cope with the crushing pressures at the bottom the ocean. Inspired by the skull of the Mariana Snailfish, the deepest living fish, the researchers distributed their robot’s electronics, creating a machine that can withstand extreme pressure.

Covid-19: ‘Intranasal Vaccines’ Might Be More Effective Than Needles

From Scientific American (March 1, 2021):

Enter the intranasal vaccine, which abandons the needle and syringe for a spray container that looks more like a nasal decongestant. With a quick spritz up the nose, intranasal vaccines are designed to bolster immune defenses in the mucosa, triggering production of an antibody known as immunoglobulin A, which can block infection. This overwhelming response, called sterilizing immunity, reduces the chance that people will pass on the virus.

The development of highly effective COVID vaccines in less than a year is an extraordinary triumph of science. But several coronavirus variants have emerged that could at least partly evade the immune response induced by the vaccines. These variants should serve as a warning against complacency—and encourage us to explore a different type of vaccination, delivered as a spray in the nose. Intranasal vaccines could provide an additional degree of protection, and help reduce the spread of the virus.

Read more

Covid-19: ‘The Evolving Science Of Masks’ (Video)

How can you tell if the mask you’re wearing is protective enough against the coronavirus? Correspondent David Pogue volunteers as a test subject to see how N95s work and learns about the science of face coverings.