Curious Cases

"Is there is any way of knowing what noises, if any, dinosaurs would have made?" asks Freddie Quinn, aged 8 from Cambridge in New Zealand.From Jurassic Park to Walking with Dinosaurs, the roars of gigantic dinosaurs like T.Rex are designed to evoke fear and terror.But did dinosaurs actually roar? And how do paleontologists investigate what noises these extinct animals may have produced? Hannah and Adam talk to dinosaur experts Steve Brusatte and Julia Clarke to find out. Plus Jurassic World sound designer Al Nelson reveals the strange sounds they used as dinosaur noises in their Hollywood blockbusters.Presenters: Hannah Fry, Adam Rutherford Producer: Michelle MartinFirst broadcast on BBC Radio 4 in 2019.

In the second installment of our double episode on the Moon we ask what life would be like if we had more than one Moon.From the tides to the seasons, the Moon shapes our world in ways that often go unnoticed. And, as we'll find out, it played a vital role in the creation of life itself. This week we celebrate the many ways the Moon and the Earth are linked.If one Moon is so great, why not have two? We discover why multiple moons could spell disaster for our planet, from giant volcanoes to cataclysmic collisions.Featuring astronomer Brendan Owens from the Royal Observatory Greenwich and physicist Neil Comins, author of 'What if the Earth had two Moons?'Presenters: Adam Rutherford, Hannah Fry Producer: Michelle MartinFirst broadcast on BBC Radio 4 in 2019.

A double episode to mark the 50th anniversary of Apollo 11, and the first humans to walk on the Moon in 1969.Harley Day emailed curiouscases@bbc.co.uk to ask “Why do we only have one Moon and what would life on Earth be like if we had more? I'll be over the moon if you can help me solve this mystery.”In this first episode, Hannah and Adam look at how the Moon was formed and why we only have one. Featuring Maggie Aderin-Pocock space scientist and author of 'The Book of the Moon' and cosmic mineralogist Sara Russell from the Natural History Museum.Presenters: Adam Rutherford, Hannah Fry Producer: Michelle MartinFirst broadcast on BBC Radio 4 in 2019.

“We play many musical instruments in our family. Lots of them produce the same pitch of notes, but the instruments all sound different. Why is this?” asks Natasha Cook aged 11, and her Dad Jeremy from Guelph in Ontario, Canada.For this instrumental case Hannah and Adam are joined by the Curious Cases band - Matt Chandler and Wayne Urquhart - to play with today's question.Bringing the science we have acoustic engineer and saxophone player Trevor Cox. Plus materials expert Zoe Laughlin demonstrates a selection of her unusual musical creations, including a lead bugle.Presenters: Adam Rutherford, Hannah Fry Producer: Michelle MartinFirst broadcast on BBC Radio 4 in 2019.

"Will the periodic table ever be complete?" asks Philip Craven on Twitter.In 2016 four new chemical elements were given the official stamp of approval - nihonium, moscovium, tennessine, and oganesson. And 2019 was named by the UN as the International Year of the Periodic Table.In this episode, Hannah and Adam dive into the test tubes of history to hear why the first element was discovered in boiled urine, why chips don't explode and how a cancelled trip to a cheese factory resulted in the creation of the periodic table.We'll hear from Dawn Shaughnessy from Lawrence Livermore National Lab, part of the team that discovered the latest 'superheavy' elements. Science writer Philip Ball shows Adam around Humphry Davy's lab equipment at the Royal Institution of Great Britain and Jim Al-Khalili explains why scientists are eager to reach the Island of Stability.Presenters: Adam Rutherford, Hannah Fry Producer: Michelle MartinFirst broadcast on BBC Radio 4 in April 2019.

“Is hypnosis real, and if so how does it work? Does it have any practical uses and which of Hannah and Adam is most susceptible?” This question came from two Curios, Peter Jordan aged 24 from Manchester and Arran Kinnear aged 13 from Bristol.Arch sceptics Hannah and Adam visit stage hypnotist Ben Dali to find out if they are susceptible to the power of suggestion. One of them will be successfully hypnotised, but who will it be?Along the way we hear about the history of hypnosis from Wendy Moore author of 'The Mesmerist'. Plus psychologist Devin Terhune explains what we know about the science of hypnosis today.Presenters: Hannah Fry, Adam RutherfordProducer: Michelle MartinFirst broadcast on BBC Radio 4 in April 2019.

"My name is Ava and I've never had a hangover," writes Ava Karuso. "I'm a 25 year-old Australian and I enjoy going out for drinks. However, the next day when everyone else sleeps in and licks their wounds, I get up early and get right back to my normal routine.”Drs Rutherford and Fry investigate the ancient origins of alcohol, from Sumerians drinking beer through straws, to Aristotle's teachings ‘On Intoxication’. But what can modern science tell us about how alcohol affects our brains? What causes the morning-after hangover and do some drinks make you feel worse than others? Are there any hangover cures that have been scientifically validated?Featuring health psychologist and hangover researcher Sally Adams, chemist Andrea Sella and science writer Adam Rogers, author of 'Proof: The Science of Booze'.Presenters: Hannah Fry, Adam Rutherford Producer: Michelle MartinFirst broadcast on BBC Radio 4 in 2018.

“Why does bad food taste so good?” asks Alan Fouracre from Tauranga, New Zealand. "And by ‘bad’ food, I mean the things we are told to hold back on like sausage, chips and chocolate."From sugar to salt and fat, we investigate why our body derives pleasure from the very foods we're often told to avoid.Adam discovers why retronasal smelling makes bacon taste delicious on a trip to the BBC canteen with materials scientist, Mark Miodownik. Hannah consults food scientist Linda Bartoshuk on her fizzy pop habit. Plus The Angry Chef, Anthony Warner, discusses the dangers of labeling certain foods as 'bad'.Presenters: Hannah Fry, Adam Rutherford Producer: Michelle MartinFirst broadcast on BBC Radio 4 in 2018.

In the second part of our eternal quest to investigate infinity, inspired by this question from father and son duo Sorley and Tom Watson from Edinburgh: “Is anything in the Universe truly infinite, or is infinity something that only exists in mathematics?” Hannah and Adam try and find something that is truly infinite, from the infinitely small particles that live in the subatomic world to the infinitely dense heart of a black hole. But how about the Universe itself? We find out how physicists go about measuring the shape of the Universe, with the help of an orange and a game of Asteroids. Plus, we consider the possibility that the Universe might be finite and have an edge. If so, what's on the other side? Theoretical physicist Sean Carroll from Caltech and cosmologist Andrew Pontzen from University College London help us navigate our biggest question yet. Presenters: Hannah Fry, Adam Rutherford Producer: Michelle MartinFirst broadcast on BBC Radio 4 in 2018.

“Is anything in the Universe truly infinite, or is infinity something that only exists in mathematics?” This momentous question came from father and son duo from Edinburgh Sorley aged 10 and Tom, aged adult. It's a subject so big, that we've devoted two episodes to our never-ending quest to investigate infinity.The first installment is a story of mathematics, music and murder. We'll find out why the ancient Pythagoreans decided that infinity was evil, and why some infinities are bigger than others.Featuring the marvellous mathematical minds of Steven Strogatz from the Cornell University and Eugenia Cheng, author of 'Beyond Infinity'.Presenters: Adam Rutherford, Hannah FryProducer: Michelle MartinFirst broadcast on BBC Radio 4 in December 2018.