Category: ScienceNews

Summer's here. Time for a cool treat. So, you grab a popsicle from the freezer. Ahh ... that's better. Until, out of nowhere, a sharp sudden pain rushes to your forehead. You've got brain freeze!

We talk with neuroscientist Caroline Palavicino-Maggio about the science behind these short-lived cold-induced headaches. Plus, some listener mail.

What are your daily science curiosities? Email the show at shortwave@npr.org.

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Scientists say the record-breaking Pacific North-West heatwave of recent weeks must have been caused by human induced climate change, but as Geert Jan van Oldenborgh explains to Roland Pease, despite a herculean effort to analyse the event in just a week, the precise mechanism to cause such an extreme and sudden event is so far bewildering climate modellers, exceeding even worst expectations.

Looking to the skies, Rosita Kokotanekova of the European Southern Observatory and colleagues have been getting excited about the discovery of a comet maybe twice as large as any observed before. Being so big, it has been spotted much further out from the sun and – if the best telescopes can be convinced to join the fun – will provide astronomers a chance to observe the core of the comet before the solar heat induces a gaseous coma to form as it nears the point in its orbit closest to the sun. It will be around for the next decade before continuing its several million year journey around our mutual star.

But it won’t get terribly close to earth, at least not as close as lumps of an asteroid that fell onto a driveway in the UK earlier this year. Dr Ashley King of the UK’s Natural History Museum is leading a consortium of scientists (benefitting from a rapid research grant by the UK’s STFC) who have now officially classified it and named it. The Winchcombe meteorite is a CM carbonaceous chondrite, meaning it represents the unspoilt early building blocks of the solar system. Falling like 4.5 billion year old leftover celestial lego, only a few are known around the world but perhaps none have been in scientists hands in such a short period of time, continuing its pristine survival.

Dr Pablo Tsukayama has published a preprint paper announcing a new variant of interest in the ongoing evolution of the SARS-CoV2 virus. Now named by the WHO as the Lambda variant, it seems it has driven the pandemic for much of this year in Peru – as much as 80% of cases – and large fractions of the outbreak elsewhere in South America. But as Pablo suggests, the reason we don’t know as much about it as for example the Alpha or Delta variants is likely because it hasn’t thus far affected the countries best equipped to do the analysis. Maybe that could change.

Image: Wildfires in Lytton, British Columbia Credit: ProPics Canada Media Ltd/Getty Images

Presenter: Roland Pease Producer: Alex Mansfield

FEMA acknowledges that the way it distributes aid often benefits some people more than others--and those who receive less aid are those people with the fewest resources to begin with. Rhitu Chatterjee talks with NPR climate correspondent Rebecca Hersher about her investigation into FEMA and why the federal government's response to disasters may disproportionately hurt people of color and their communities.

Read more of Rebecca's reporting in "Why FEMA Aid Is Unavailable To Many Who Need It The Most."

You can email Short Wave at ShortWave@NPR.org.

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People between the ages of 12 and 17 are now eligible to get the Pfizer COVID-19 vaccine and health officials expect this age group will soon be able to receive the Moderna one. So, health reporter Pien Huang and Short Wave producer Rebecca Ramirez talked to teens about their questions about the vaccine and what a strange year the pandemic has been for them.

Do you have questions about the coronavirus and the pandemic? Email shortwave@npr.org.

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With the help of ecologist Rodrigo Medellín, the "Bat Man of Mexico," Rasha Aridi (former Short Waver) presents the case for why bats are the best and coolest flying creatures out there!

Are you a scientist who thinks Rodrigo is wrong and that the animal you study is superior? Let us know! You can email us at shortwave@npr.org. We'd love to hear the case for your critter.

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The Natural History Museum in London holds a massive collection of insects. It asked researchers at the Diamond light source, a facility near Oxford, to develop a high throughput X-ray microscope to take 3D scans of them all. Roland Pease has been to see the new technology in action.

Many people seeking compensation for the impacts of climate change are turning to the law courts. Successes so far have been few. Oxford University’s Friederike Otto, who specialises in connecting weather extremes to the greenhouse effect, has just published a paper looking at the challenge in bringing successful climate lawsuits.

Spacecraft will be returning to Venus in the next decade with the recent approval of two NASA missions to the planet, and one from the European Space Agency, ESA. Philippa Mason of Imperial College is a planetary geologist on that mission, Envision. She plans to use radar to peer through that dense and interesting atmosphere to follow up evidence of volcanic activity and tectonics on the surface beneath.

A few years ago synthetic biologist Jim Collins of Harvard found a way to spill the contents of biological cells onto … basically … blotting paper, in a way that meant by just adding water, all the biochemical circuitry could be brought back to life. With a bit of genetic engineering, it could be turned into a sensor to detect Ebola and Nipah viruses. His team have kept developing the idea, and this week they report success in a smart face mask that can detect SARS-CoV-2 in your breath.

Also, Food. For all of us it is a basic necessity and for those lucky enough, it is something we spend a lot of time planning and enjoying. CrowdScience listeners certainly have a lot of food related questions; in this buffet of an episode Marnie Chesterton opens the fridge door to pick the tastiest. Starting with the seemingly simple question of what makes us feel hungry, and ending in outer-space, Marnie investigates flavour, nutrition and digestion.

After a year when watching TV has become a core activity for many people stuck in their homes, one listener wants us to find out if eating food whilst watching the TV affects our perception of taste. We then journey to the skies and ask if it is true that food tastes blander on aeroplanes, what does that mean for astronauts’ mealtimes? Back on earth, Marnie explores whether humans are the only animals that season their food.

Tuck in your napkins and prepare to feast on a smorgasbord of scientific snacks.

(Image: Hairy Fungus Beetle - Prepared by Malte Storm. Credit: Diamond light Source Ltd)

Food. For all of us it is a basic necessity and for those lucky enough, it is something we spend a lot of time planning and enjoying. CrowdScience listeners certainly have a lot of food related questions; in this buffet of an episode Marnie Chesterton opens the fridge door to pick the tastiest. Starting with the seemingly simple question of what makes us feel hungry, and ending in outer-space, Marnie investigates flavour, nutrition and digestion.

After a year when watching TV has become a core activity for many people stuck in their homes, one listener wants us to find out if eating food whilst watching the TV affects our perception of taste. We then journey to the skies and ask if it is true that food tastes blander on aeroplanes, what does that mean for astronauts’ mealtimes? Back on earth, Marnie explores whether humans are the only animals that season their food.

Tuck in your napkins and prepare to feast on a smorgasbord of scientific snacks. Presented by Marnie Chesterton and Produced by Melanie Brown and Hannah Fisher for the BBC World Service.

Guests: Professor Charles Spence Dr Kristine Beaulieu Mr. Takashi Funahashi Ruben Meerman Chef Jozef Youseff

(Encore episode) The 2016 movie Arrival, an adaptation of Ted Chiang's novella Story of Your Life, captured the imaginations of science fiction fans worldwide. Field linguist Jessica Coon, who consulted on the film, breaks down what the movie gets right — and wrong — about linguistics.

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The twin prods of a U.S. president trying to rebrand the coronavirus as the ‘China virus’ and a bloody attack in Atlanta that left six Asian women dead have brought to the fore a spate of questions about Asian Americans in the United States. Columbia University sociologist Jennifer Lee has been answering many of those questions her entire academic career, and across four books, dozens of journal articles and untold media appearances. One of the first questions she answers in this Social Science Bites podcast is who are ‘Asian Americans’? As she tells interviewer David Edmonds, “No one comes to the United States and identifies as an Asian American.” Instead, if asked, they are likely to identify with national origin or ethnicity – say Chinese, or Japanese, or Filipino – rather than with the umbrella construct of Asian American.

“’Asian American,’” Lee explains, “was originally conceived as a political identity by student activists at Berkley in the 1960s who coined the term as a unifying pan-ethnic identity to advocate for Asian-American studies in university curricula and to build coalitions with other marginalized groups.” Since then, it evolved into a demographic category, and in 1997 the U.S. Census Bureau grouped together people from East Asia, Southeast Asia and South Asia under the classification of ‘Asian.’ (Those regions, of course, don’t include everyone from the continent of Asia – where are the Kazakhs and the Uzbeks, for example – and does include people from the islands adjacent to the land mass – Japanese, Malaysians, Filipinos.)

“These are groups don’t have a whole lot in common in terms of language, culture, religion, history,” Lee notes, but they are bound by various forms of exclusion in the U.S. But their presence in the United States in growing rapidly. Combined, Asians are the fastest growing demographic in the U.S.; their population is up 27 percent in the last decade to about 23 million people, or 7 percent of the total U.S. population.

Immigration is a key component of that growth, notes Lee, who herself emigrated to the U.S. with her Korean parents when she was 3. Some four out of five current Asian Americans are foreign-born, she explains, and continuing immigration replenishes the cohort of ‘new’ Asian Americans. That, she suggests, will keep the category of Asian-American alive for some time.

Immigration also contributes to the trope – a trope Lee rejects – that “‘Asians have some set of values that make them successful.” Instead, she argues that due to who has emigrated, America “engineered this idea that Asians are successful.”

Asian immigrants coming to the United States are not just a random sample of the population in their countries of origin; they are extremely educated, more likely to hold a B.A. than those who don’t immigrate, and they’re also more likely to have a college degree than the U.S. mean. It’s this ‘hyper selectivity’ that largely accounts for educational and economic accomplishments of America’s Asians, she argues here and in her latest award-winning book, The Asian American Achievement Paradox, written with Min Zhou.

Lee offers several data points during the podcast to buttress the idea that innate cultural values are not driving success. For one thing, the distribution of Asian American accomplishments are not evenly distributed: Indian-Americans have exceptionally high educational achievements while Cambodian, Laotian and Hmong Americans have relatively low graduation rates. Plus, Lee says, if ‘values’ drove the success, we’d see the same successes in the immigrants’ Asian countries of origin or in other areas where Asian diasporas are represented – and we don’t.

Lee is the Julian Clarence Levi Professor of Social Sciences at Columbia and past president of the Eastern Sociological Society. She is or has been a fellow at the Center for the Study of Economy and Society, the Center for Advanced Study in the Behavioral Sciences at Stanford, the Center for the Study of Race, Politics and Culture at the University of Chicago, and a visiting scholar at the Russell Sage Foundation and a Fulbright Scholar to Japan. She will join the board of trustees for the Russell Sage Foundation this fall.

The Natural History Museum in London holds a massive collection of insects. It asked researchers at the Diamond light source, a facility near Oxford, to develop a high throughput X-ray microscope to take 3D scans of them all. Roland Pease has been to see the new technology in action.

Many people seeking compensation for the impacts of climate change are turning to the law courts. Successes so far have been few. Oxford University’s Friederike Otto, who specialises in connecting weather extremes to the greenhouse effect, has just published a paper looking at the challenge in bringing successful climate lawsuits.

Spacecraft will be returning to Venus in the next decade with the recent approval of two NASA missions to the planet, and one from the European Space Agency, ESA. Philippa Mason of Imperial College is a planetary geologist on that mission, Envision. She plans to use radar to peer through that dense and interesting atmosphere to follow up evidence of volcanic activity and tectonics on the surface beneath.

A few years ago synthetic biologist Jim Collins of Harvard found a way to spill the contents of biological cells onto … basically … blotting paper, in a way that meant by just adding water, all the biochemical circuitry could be brought back to life. With a bit of genetic engineering, it could be turned into a sensor to detect Ebola and Nipah viruses. His team have kept developing the idea, and this week they report success in a smart face mask that can detect SARS-CoV-2 in your breath.

(Image: Hairy Fungus Beetle - Prepared by Malte Storm. Credit: Diamond light Source Ltd)

Presenter: Roland Pease Producer: Alex Mansfield