Category Archives: Science
Top New Science Podcasts: Megatrials For Covid-19 Treatment & Blood Benefits Of Exercise
Contributing correspondent Kai Kupferschmidt talks with host Sarah Crespi about the success of a fast moving megatrial for coronavirus treatments. The United Kingdom’s Recovery (Randomized Evaluation of COVID-19 Therapy) trial has enrolled more than 12,000 hospitalized coronavirus patients since early March and has released important recommendations that were quickly taken up by doctors and scientists around the world.
Kupferschmidt discusses why such a large study is necessary and why other large drug trials like the World Health Organization’s Solidarity trial are lagging behind. Also this week, producer Meagan Cantwell talks with Saul Villeda, a professor in the Department of Anatomy at the University of California, San Francisco, about transferring the beneficial effects of exercise on the brain from an active mouse to a sedentary mouse by transferring their blood.
TOP JOURNALS: RESEARCH HIGHLIGHTS FROM SCIENCE MAGAZINE (JULY 10, 2020)
Health: “Making Sense Of Coronavirus Data” (Video)
Public health organizations track the spread of coronavirus and use graphs and charts to visualize the data. WSJ’s Brianna Abbott explains what to look for in the data to understand how the virus is impacting your community.
Photo illustration: Laura Kammermann/WSJ
New Science Podcasts: Satellite Navigation, World Wide Web & Neolithic Genomics (BBC)
BBC Radio 4 ‘Inside Science’ talks about satellite navigation in the UK; the science of the World Wide Web and Neolithic genomics.
Is the UK losing its way when it comes to satellite navigation? There’s GPS from the US, but other countries and regions, including Russia, China, India and Japan, either have, or are building, satellite navigation systems of their own. The EU has Galileo, but with Brexit, Britain is no longer involved. The Government has announced that it’s just acquired a satellite technology company called OneWeb. It’s primary role is enhanced broadband, but there’s talk of adding in a navigation function to the constellation of satellites. But how feasible will that be?
In an era of cyber-crime, misinformation, disinformation, state-sponsored attacks on rival countries’ infrastructure, government-imposed internet shutdowns in places like Eritrea and Kashmir, the World Wide Web is an increasingly dark and troubled place. Making sense of how the internet has changed from the democratic, sharing, open platform it was designed to be, and predicting what’s next, are the web scientists. Professor Dame Wendy Hall, Regius Professor of Computer Science at the University of Southampton, and a co-founder of the whole field of web science, is hosting an online, annual conference this week. The theme this year is ‘Making the web human-centric’.
Communal burial sites tend to suggest an egalitarian society, where everyone is considered equal. And this is what we expected the Neolithic societies that spread across Europe with the birth of agriculture around 6000 years ago would be. But DNA evidence from a single human, NG10, buried in 3200 B.C.E in the vast tomb of Newgrange, 25 miles north of Dublin, in Ireland, shows very strong inbreeding. Couple this with the fact the body was buried and not cremated and placed in a highly adorned chamber. Does this indicate an elite ruling class where marrying one’s close kin was the order of the day? Dr. Lara Cassidy, palaeogeneticist at Trinity College Dublin, decoded NG10’s DNA and she tells Adam Rutherford the story.
Presenter – Gareth Mitchell
Producers – Fiona Roberts and Beth Eastwood
Infographic: “Covid-19 Antibody Testing” (CDC)
Top New Science Podcast: UAE’s New Mars Mission, ‘Enhanced Weathering’ & Mexico’s Deep Caverns
On this week’s podcast, an ambitious Mars mission from a young space agency, and how crumbling up rocks could help fight climate change.
In this episode:
00:46 Mars hopes
In a few weeks the UAE’s first mission to Mars is due to launch. We speak to the mission leads to learn about the aims of the project, and how they developed the mission in under six years. News Feature: How a small Arab nation built a Mars mission from scratch in six years; News Feature: Countdown to Mars: three daring missions take aim at the red planet
09:53 Research Highlights
Pluto appears to be losing its atmosphere, and solving the mystery of a pitch-black prehistoric mine. Research Highlight: Goodbye, Pluto’s atmosphere; Research Highlight: Why ancient people pushed deep into Mexico’s pitch-black caverns
12:12 Climate rocks
Researchers have assessed whether Enhanced Weathering – a technique to pull carbon dioxide out of the air – has the potential to help battle climate change. Research Article: Beerling et al.
18:41 Briefing Chat
We take a look at some highlights from the Nature Briefing. This time we talk about an outbreak of flesh-eating bacteria in Australia, and how flatworms can regrow their nervous systems. The Atlantic: Australia Has a Flesh-Eating-Bacteria Problem; The New York Times: A Worm’s Hidden Map for Growing New Eyes
New Astronomy Books: “Expanding Universe – The Hubble Space Telescope”
With investigations into everything from black holes to exoplanets, the Hubble Telescope has changed not only the face of astronomy but also our very sense of being in the universe. On the 30th anniversary of its launch into low-earth orbit, this updated edition of Expanding Universe presents 30 brand new images, unveiling more hidden gems from the Hubble’s archives.
Ultra-high resolution and taken with almost no background light, these pictures have answered some of the most compelling questions of time and space while also revealing new mysteries, like the strange “dark energy” that sees the universe expanding at an ever-accelerating rate.
The collection is accompanied by an essay from photography critic Owen Edwards and an interview with Zoltan Levay, who explains how the pictures are composed. Veteran Hubble astronauts Charles F. Bolden, Jr. and John Mace Grunsfeld also offer their insights on Hubble’s legacy and future space exploration.
TOP JOURNALS: RESEARCH HIGHLIGHTS FROM SCIENCE MAGAZINE (July 3, 2020)
Top New Science Podcasts: Biodiverse Oasis In Mexico, Thermoacoustic Speakers
First up this week, News Intern Rodrigo Pérez-Ortega talks with host Meagan Cantwell about an oasis of biodiversity in the striking blue pools of Cuatro Ciénegas, a basin in northern Mexico. Researchers have published dozens of papers exploring the unique microorganisms that thrive in this area, while at the same time fighting large agricultural industries draining the precious water from the pools.
David Tatnell, a postgraduate researcher at the University of Exeter, talks with host Sarah Crespi about using heat to make sound, a phenomenon known as thermoacoustics. Just like the sound of fire or thunder, sudden changes in temperature can create sound waves. In his team’s paper in Science Advances, Tatnell and colleagues describe a thermoacoustic speaker that uses thin, heated films to make sound. This approach cuts out the crosstalk seen in mechanical speakers and allows for extreme miniaturization of sound production. In the ultrasound range, arrays of thermoacoustic speakers could improve acoustic levitation and ultrasound imaging. In the hearing range, the speakers could be made extremely small, flexible, and even transparent.
Intellicurious 