Naked Scientists, In Short Special Editions Podcast

Pain relief after surgery is a major headache as we don't have a lot of effective, and safe, options. Opioids in particular, like morphine, are very addictive and cause hundreds of thousands of deaths globally each year, and so doctors are desperate for alternatives. Now, scientists at the University of Buffalo have developed a long-lasting, local painkiller that can be injected into the site of i...

He said he'd introduce them, now Boris Johnson has stepped back from mandating vaccine passports across England for venues like nightclubs. But what's provoked this viral volte-face? Also, saliva tests for Covid-19, few fatal coronavirus cases among the unvaccinated, what's the role of hand sanitisers, and are Covid booster jabs the way forward? Dr Chris Smith joins RNZ's Kim Hill to discuss the l...

Fluoride is the stuff in toothpaste that helps strengthen teeth. But if there's too much fluoride in the water it softens bones, and children become susceptible to bone deformities. It's very difficult and expensive to remove dissolved fluoride ions from water. But, inspired by nature, scientists have used polymers to produce a membrane that can filter out fluoride, as Sally Le Page heard from Ays...

Twitter has been the subject of another study, looking at how people's tendency to post tweets in moral outrage is affected by other people on the site. Increasingly in recent years, celebrities and other well-known individuals have found themselves being "cancelled". This usually happens when they do or say something that other users disagree with. The outpourings of outrage reverberate across th...

Scientists and doctors are always after good quality human cells for research and therapeutic purposes, but these can be hard to come by in sufficient quantities. Now, synthetic biology company bit.bio has opened up new headquarters in Cambridge to start supplying multiple different cell types by reprogramming stem cells. Eva Higginbotham heard more from founder and CEO Mark Kotter... Like this po...

Many of us love putting out bird seed and watching birds feast away, and feel we're doing a good deed too, but a new paper out of Manchester Metropolitan University suggests we may actually be doing more harm than good. Eva Higginbotham spoke to BBC science correspondent Victoria Gill, who spoke with lead author Alex Lees previously... Like this podcast? Please help us by supporting the Naked Scie...

Most schools across the UK are open and children are heading back to their classrooms. But to what extent will this affect the Covid case rates across the country and what can we do to avoid disrupting a third academic year? In Scotland, children returned to school sooner than their English counterparts: what can we learn from their experience? Chris Smith spoke with Linda Bauld, who specialises i...

Quite soon after the pandemic first struck a significant number of people began to complain of persistent symptoms in the aftermath of being infected with the new coronavirus. These manifestations have been dubbed "long covid". What's less clear is the extent to which this is happening not just to adults but also to children, and particularly teenagers. Terence Stephenson is at the UCL Gt Ormond S...

We often look for water on remote planets and moons because, as far as we know, it's a requirement for life. Now a team of researchers using the Hubble Space Telescope to scrutinise Jupiter's largest moon, Ganymede, think they've found water in its atmosphere. Sally Le Page spoke with team member Kurt Retherford. Like this podcast? Please help us by supporting the Naked Scientists

Is Delta more deadly, or just transmitting more rapidly? And are the vaccines we're using likely to defend against future coronavirus variants? Also, does it matter that levels of antibody dimish post-vaccination, or will immune memory make up for the shortfall? Meanwhile, are vaccinated people who still catch Delta equally infectious? Does Delta incubate at the same rate as classical coronavirus...

Researchers have reported a case of antibiotic-resistant bacteria passing between dogs and their owners. And these bacteria aren't just resistant to any antibiotic - they're resistant to colistin, an antibiotic of last resort that we use when all other treatments fail. Mark Holmes is a vet and a microbial scientist from the University of Cambridge - he wasn't involved in the research, but he took...

Chris Smith joins Radio New Zealand National's Kim Hill to talk Covid-19, including the impact of the July 19th UK Freedom Day on Covid case rates. They also touch on vaccine performance, variants, past pandemics and whether we'll all be getting boosters in future years... Like this podcast? Please help us by supporting the Naked Scientists

Although Covid-19 is dominating the headlines perpetually at the moment, it's very important not to lose sight of other significant diseases that don't yet have vaccines and do have a higher cumulative death toll. Malaria is one of them and kills half a million people, mostly children, every year. One serious problem is that the parasite that causes the disease is rapidly becoming resistant to the...

Earlier this year a devastating heatwave in the pacific northwest of the United States killed almost 200 people with record-shattering temperatures; and, in 2019, the UK recorded its highest ever temperature of 38.7 degrees here in Cambridge. Alarmingly, new research from the Swiss Federal Institute of Technology suggests that there's more of this to come. Eva Higginbotham heard why from Erich Fis...

A question we're being asked quite a lot is whether the extra lengths we're going to in terms of hygiene to protect us from COVID-19 might cause us immune problems later because we're living lives that are too clean. This is the basis of what's dubbed the "hygiene hypothesis". But a report out this week says that, actually, it's the environment we've created - rather than the way we clean it - tha...

The general view is that waterways, such as rivers and underground water sources, will dry up during severe drought - but eventually recover and resume their normal flow when the rains return. But new findings from Australia pour cold water on that idea. When researchers analysed 30 years of rainfall and flow data from 161 water catchments in southeast Australia, they discovered that one-third of...

An ancient skull, uncovered decades ago in China, has recently been revealed to be possibly the closest ever relative to humankind. It's called "Dragon Man", and based on trace uranium inside the skull, it's been dated to at least 146,000 years old - but could well be much older! This puts it at a critical time period in human evolution, when our ancestors were first emerging within Africa. But th...

Few animals inspire the imagination like Tyrannosaurus rex. And the mighty tyrannosaurs did dominate the lands that eventually became central Asia and western North America for millions of years. But during that time, fossils show that medium-sized predators all but disappeared. Why? Thomas Holtz from the University of Maryland dug deep into the records, and - as he tells Charlotte Birkmanis - thi...

Previously, researchers knew that sharks can travel back and forth across entire oceans, accurately returning to specific locations. But what we didn't know was whether they memorise these routes, or if they have some sort of inbuilt GPS. To find out how sharks navigate, Charlotte Birkmanis mapped the course with Florida State University's Bryan Keller... Like this podcast? Please help us by suppo...

New technology may help save bees by providing an antidote for deadly pesticides. The new solution allows beekeepers to feed their bees 'pollen patties', a pollen-sized microparticle filled with enzymes to prevent the bees from ingesting certain pesticides. Carlotte Birkmanis chatted with Cornell University's James Webb to get the latest buzz on their sweet technology. Like this podcast? Please he...

Covid viruses, vaccines and variants: Chris Smith talks to Radio New Zealand National to bring Kim Hill up to speed with the latest developments on the pandemic front, including the recent case in NZ's Wellington... Like this podcast? Please help us by supporting the Naked Scientists

Eastern Australia is currently in the grips of a mouse plague. Mice live everywhere people do, often undetected. Right now though, highly favourable conditions have caused mice populations to explode in the eastern states of Queensland and New South Wales. A year of abundant rainfall after several years of drought has led to bumper crops, providing lots of food for mice, allowing them to not only...

Scientists have reported on some unusual things flying in space recently. In one paper, sperm, stored aboard the International Space Station for the last 5 years, has been brought back to Earth and used to fertilise eggs. Also, a group of glow-in-the-dark bobtailed squid headed spacewards to look at how microgravity affects their microbiome. Westminster University astrobiologist Lewis Dartnell tal...

The world is always on the lookout for new drugs - but they're not easy to make. Synthesising them is often an expensive and prolonged process. But what if we could employ a miniature assistant to do it for us? That's what a team from the MRC Laboratory of Molecular Biology have come up with. They're managed to genetically reprogramme living cells to build complex molecules - molecules that no liv...

This month: how hummingbirds hum, how elephants evolved anti-cancer genes so they can sustain big bodies, gorillas that grow up without their mothers, and why deforestation causes peaks and then troughs in malaria cases... Like this podcast? Please help us by supporting the Naked Scientists