Category: ScienceNews

What's the most versatile pan in the kitchen? According to chef and cookbook author J. Kenji López-Alt, it's the wok! And along with spices, he sprinkles science explainers into his writing. Today's episode is just that — the science of the wok in action. He and host Emily Kwong talk about how to choose, season and cook with one, and why its unique shape makes it so versatile. Plus, we hear how Emily fared cooking one of Kenji's dishes from his new cookbook The Wok.

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Researchers have developed a medical imaging technique which reveals where in the body HIV lies hidden, even when people have their infection well controlled by antiviral drugs. The team at the University of California, San Francisco hope this will lead to better treatments and even cures for HIV. As Timothy Henrich told us, they are also going to use the technique to investigate the notion that Long Covid is caused by the coronavirus persisting deep in the body's tissues.

Also in the programme, Roland Pease reports from the vast particle accelerator in Switzerland where the famous Higgs particle was discovered ten years ago. The scientists there are preparing to begin experiments with an upgraded Large Hadron Collider to learn more about the particle and the fundamental nature of the Universe.

Roland also talks to Frank Close, physicist and author of 'Elusive' - a new biography of Peter Higgs, a scientist as elusive as the particle named after him.

Finally an international team of archaeologists have revised the ancient history of the chicken, with a new programme of radiocarbon dating and analysis of buried bird bones. Humanity's relationship with the bird began much more recently than some researchers have suggested. Naomi Sykes of Exeter University and Greger Larson of Oxford University tell Roland when, where and how the domestication began and how the birds spread from Southeast Asia to the rest of the world.

And, Humans can walk for miles, solve problems and form complex relationships on the energy provided by three meals a day. That's a lot of output for a fairly modest input. Listener Charlotte from the UK wants to know: how are we so efficient? And how does human efficiency compare to that of machines?

CrowdScience presenter Marnie Chesterton pits her energetic wits against everything from cars to wheelchairs to find out how she shapes up. Cars can travel many hundreds of kilometres a day if you give them a couple of tanks of fuel. But the only fuel Marnie needs to walk to work is a cup of coffee. She gets experts to help her work out who does the most efficient job.

Marnie also explores whether humans are born equal when it comes to fuel efficiency. Does the energy from one banana get converted into the same amount of movement from person to person? And how does she compare to an Olympic athlete? Marnie gets put through her paces to find out how efficient she really is.

Image: VRCPET body scan reveals HIV's hideouts Credit: Timothy Henrich / University of California, San Francisco

Humans can walk for miles, solve problems and form complex relationships using the energy provided by daily meals. That is a lot of output for a fairly modest input. Listener Charlotte from the UK wants to know: how efficient are humans? How do they compare to cars, other animals and even to each other?

Presenter Marnie Chesterton pits her energetic self against everything from cars to rabbits to find out how she shapes up.

Marnie also explores whether humans are born equal when it comes to fuel efficiency. Does the energy from one banana get converted into the same amount of movement from person to person? Marnie gets on a treadmill to find out how efficient she really is. With contributors from Herman Pontzer, Duke University, Rhona Pearce, Loughborough University and Christian Gammelgaard Olesen from Wolturnus wheelchair manufacturing company.

Presenter: Marnie Chesterton Producer: Caroline Steel Editor: Richard Collings Production co-ordinator: Jonathan Harris

Art Design: Jonathan Harris

Image credits:

Airplane: Credit: Ghrzuzudu Creative #:1337512445 Red car: Credit: EgudinKa Creative #:625457854 Wheelchair Woman: Credit: Ponomariova_Maria Creative #:1401730072 Getty Images

Sex can be a nerve-racking experience no matter what. That's especially true if you have no clue what to do, and since LGBTQ+ topics are often left out of the conversation in school sex ed classes, many queer people know this feeling well. Life Kit spoke with sexuality educators to understand what sex education could look like for queer students and the importance of including everybody in the discussions.

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Sex can be a nerve-racking experience no matter what. That's especially true if you have no clue what to do, and since LGBTQ+ topics are often left out of the conversation in school sex ed classes, many queer people know this feeling well. Life Kit spoke with sexuality educators to understand what sex education could look like for queer students and the importance of including everybody in the discussions.

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Researchers have developed a medical imaging technique which reveals where in the body HIV lies hidden, even when people have their infection well controlled by antiviral drugs. The team at the University of California, San Francisco hope this will lead to better treatments and even cures for HIV. As Timothy Henrich told us, they are also going to use the technique to investigate the notion that Long Covid is caused by the coronavirus persisting deep in the body's tissues.

Also in the programme, Roland Pease reports from the vast particle accelerator in Switzerland where the famous Higgs particle was discovered ten years ago. The scientists there are preparing to begin experiments with an upgraded Large Hadron Collider to learn more about the particle and the fundamental nature of the Universe.

Roland also talks to Frank Close, physicist and author of 'Elusive' - a new biography of Peter Higgs, a scientist as elusive as the particle named after him.

Finally an international team of archaeologists have revised the ancient history of the chicken, with a new programme of radiocarbon dating and analysis of buried bird bones. Humanity's relationship with the bird began much more recently than some researchers have suggested. Naomi Sykes of Exeter University and Greger Larson of Oxford University tell Roland when, where and how the domestication began and how the birds spread from Southeast Asia to the rest of the world.

Image: VRCPET body scan reveals HIV's hideouts Credit: Timothy Henrich / University of California, San Francisco

Presenter: Roland Pease Producer: Andrew Luck-Baker

As a kid, Ariana Remmel had a hard time figuring out where they fit in. They found comfort in the certainty and understanding of what the world was made of: atoms and molecules and the periodic table of elements.

Years later, Ari went on to become a chemist and science writer. On today's show, Ari talks with host Maddie Sofia about how chemistry has helped them embrace their mixed identities.

For more, read Ari's recent essay in Catapult Magazine: https://catapult.co/stories/ariana-remmel-essay-mixed-identities-organic-chemistry

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Medical transition-related treatments like hormone replacement therapy are associated with overwhelmingly positive outcomes in terms of both physical and mental health for transgender people. But, it can be hard to know exactly how to get started. Reporter James Factora explains where to start, common misconceptions about HRT, and the importance of finding community through the process.

Read James' full reporting for VICE here: "A Beginner's Guide to Hormone Replacement Therapy."

(www.vice.com/en/article/dyv33x/how-to-start-hrt-hormone-replacement-therapy)

If you're just learning about hormone replacement therapy for the first time, welcome! We're so glad you're here. You might want to read about the basics before listening to this episode. We'll be here when you get back!

● "Overview of Feminizing Hormone Therapy," UCSF Transgender Care"

(https://transcare.ucsf.edu/guidelines/feminizing-hormone-therapy)

● "Overview of Masculinizing Hormone Therapy," UCSF Transgender Care

(https://transcare.ucsf.edu/guidelines/masculinizing-therapy)

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Kyne is the stage name of Kyne Santos, a math communicator and a drag queen. The former Canada's Drag Race contestant posted her first video explaining a math riddle in full drag on TikTok during the pandemic. Since then, Kyne's videos, under the username @onlinekyne, have have attracted 1.3 million followers and generated 40.7 million likes. Kyne talks to host Emily Kwong about bringing STEM to the drag scene. (Encore)

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Tam O'Shaughnessy and Sally Ride, the first American woman in space, met as kids in the early 1960s and developed an instant connection. Years later, they fell in love. They also were dedicated to STEM education and founded Sally Ride Science in 2001, a company focused on equity and inclusion in science education. Tam talks about this, and her relationship with Sally Ride, with Maddie Sofia. (encore)

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