Question of the Week

Brian wants to know, if 2 AI's were to have a conversation with one another, what would they talk about? James Tytko put this query to the test, and asked Mike Pound, professor of computer vision at the University of Nottingham, to help make sense of it all... Like this podcast? Please help us by supporting the Naked Scientists

Thanks to John Maher for the answer! Like this podcast? Please help us by supporting the Naked Scientists

Kiran wants to know how animals like dogs are able to follow commands from humans. James Tytko asked Nicky Clayton, Professor of Comparative Cognition at the University of Cambridge, to help with the answer... Like this podcast? Please help us by supporting the Naked Scientists

Alan writes in, acknowledging that many animals use the Earth's magnetic field for navigation purposes. Given the shifts in poles and field intensity we experience due to convection currents in the Earth's core, how do they stay on course? James Tytko asked Miriam Liedvogel, professor of ornithology, to help find the answer... James - The best supported ideas include the presence of a tiny compass...

In 1977, astronomer Jerry Ehman detected a narrowband radio signal, far stronger than any that have been recorded before or since, using Ohio State University's Big Ear telescope as it was pointing in the direction of the Saggitarius constellation. Listener to the show, Donald, wants to know if any consensus has been reached as to the origin of the signal, which James Tytko sought to find out with...

Thanks to John Travers for the answer! Listener Francisco asked: I have been told that jumping on a trampoline is healthy for humans. It is considered as a good exercise; and also to better coordinate brain and body. I am 73 and wonder whether it is advisable for me to jump on a spring board? John - My work in reversing frailty and building resilience in older adults has made me a big advocate for...

Silke is writing all the way from French Polynesia, asking what's best to do with all the plastic rubbish she picks up from the beach, and whether burning it is advisable. James Tytko asked Richard Lampitt from the National Oceanography Centre to help find an answer... Like this podcast? Please help us by supporting the Naked Scientists

Listener to the show, Elaine, wants to know whether her mother, who was a thalidomide baby, might have passed on effect of the drug to her children. Thalidomide was a treatment for morning sickness which caused severe birth differences in children born to mothers who used the drug. James Tytko sought an answer, with help from Neil Vargesson, Professor of Developmental Biology at the University of...

Garth wants to know, given the skin can block water from passing through it, how do certain skin creams allege to permeate into our body? James Tytko took on the question with help from Richard Guy, Professor of Pharmaceutical Sciences at the University of Bath... Like this podcast? Please help us by supporting the Naked Scientists

Garth writes in wanting to know why the prevalence of lactose intolerance is nearly 100% in countries like South Korea, but down in the low single digits in countries like the UK. James Tytko asked Mark Thomas, Professor of Evolutionary Genetics at UCL, for the answer... Like this podcast? Please help us by supporting the Naked Scientists

Dan wants to know what the likelihood is of him being here if neither him, his parents, nor his grandparents had had any vaccinations. James Tytko sought to provide an answer, with the help of Helen Bedford, Professor of Children's Health at UCL... Like this podcast? Please help us by supporting the Naked Scientists

Thanks to Philippa Browning for the answer! Like this podcast? Please help us by supporting the Naked Scientists

Bill sends his question in all the way from Australia. A regular listener, he enjoys our programme through bone conduction headphones. But what are these devices, and does listening to loud sounds through them predispose a person to damaging their hearing in the same way as traditional headphones? James Tytko seeks the answers, with help from audiologist Roger Lewin... Like this podcast? Please he...

Kevin wants to know, assuming many of us will be driving electric cars in the future, what will happen to the vast quantities of petrol currently refined from crude oil? Will we scale back production? Or can industry adapt? To help James Tytko with the answer, we hear from Professor Nilay Shah, Director of the Centre for Process Systems Engineering at Imperial College London... Like this podcast?...

George writes in to ask whether his gum-chewing habits are related to his tinnitus, or whether it's just a coincidence that it comes back when he gets back into the habit. James Tytko investigates, with help from ear, nose and throat doctor Malcolm Hilton... Like this podcast? Please help us by supporting the Naked Scientists

In our Question of the Week, Andrew wants to know why many people may experience dreams differently when holidaying in the mountains. To find out what might be behind the 'high-definition' dreams associated with high places, James Tytko sought the help of Andrew Murray, Professor of Metabolic Physiology at the University of Cambridge... Like this podcast? Please help us by supporting the Naked Sci...

Damian wants to know, if at one stage all of the continents were joined together, what was on the other side? Was it all just water? James Tytko investigated whether this was the case, and what the consequences would be for conditions on Earth of one giant global ocean... Like this podcast? Please help us by supporting the Naked Scientists

Dave writes in wanting to know whether there is any way to get nuclear energy onto the grid without heating up water to turn a steam turbine. A great question that sees James Tytko dip his toe into the uranium heated waters of nuclear engineering... Like this podcast? Please help us by supporting the Naked Scientists

David wants to know, after looking at distant galaxies in the night sky, how long it took to create them. James Tytko took on the question with the help of the University of Cambridge's Public Astronomer, Matt Bothwell... Like this podcast? Please help us by supporting the Naked Scientists

Parasites have to come up with all sorts of tricks to evade the immune system of their hosts. But Kate wants to know, how do they know they've found the right place? James Tytko took her question on with help from Catherine Merrick, professor of parisitology at the University of Cambridge... Like this podcast? Please help us by supporting the Naked Scientists

Thanks to Cambridge University's Andy Wheeler for the answer! Like this podcast? Please help us by supporting the Naked Scientists

Rick wants to know why the Canada geese he's been observing, who are preparing to migrate for the winter, are honking so incessantly while flying in formation. Viola Ross-Smith from the British Trust for Ornithology was on hand to help James Tytko with the answer... Like this podcast? Please help us by supporting the Naked Scientists

Van writes in with, 'A friend is encouraging me to take a cancer screening test that screens for many different cancers. A review of one test says: "While overall it picks up 90% of stage 4 cancers, it only detects an average of 17% of stage 1 cancers. Yet it is being touted as a test that can detect cancer early." Are these tests worthwhile?' James Tytko took on the question with the help of Prof...

If dinosaurs hadn't been wiped out by a mass extinction event, would there have been room for humans to grow into the successful species we are today? That's what Colin wants to know, and James Tytko has promised to find the answer. He spoke with Dr Charlotte Kenchington from the University of Cambridge's Department of Earth Sciences... Like this podcast? Please help us by supporting the Naked Sci...

Pamela wants to know whether the distribution of chemical isotopes is the same on other planets as it is on Earth. Take carbon, for example, 99% of which is carbon-12 on Earth while 1% is carbon-13? To find the answer, James Tytko asked Xander Byrne from the University of Cambridge's Institute of Astronomy... Like this podcast? Please help us by supporting the Naked Scientists