James O'Brien's Mystery Hour

James O'Brien's Mystery Hour

If you've ever wondered "why", then this is the hour for you. Sometimes simple, sometimes intelligent, but almost always entertaining, probably the best hour of radio you could ever download!
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In this episode of Mystery Hour, James O'Brien explores a wide range of curiosities through listener interactions. The discussion covers everything from the structural reasons behind horizontal shirt buttons and how urban foxes survive droughts to the technical debate over what truly qualifies as a 'crisp.' The show also delves into human biology and psychology, examining why stomachs rumble when empty, the mechanics of the fight-or-flight response, and the instinctual drive to park near others in empty car parks. Additionally, listeners share insights on Oyster card data storage and the development of mechanical models for pharmaceutical research.

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the only buttonhole upon which stress is placed is the bottom buttonhole So if it were vertical, then it would be more likely to split because you're pushing it down all the time.

00:05:32 · James O'Brien explains the structural reason why the bottom button on a shirt is sewn horizontally rather than vertically.

A baked Walker's crisp. A baked Walker's crisp is not a crisp. It's a maize-based snack or a wheat-based snack.

00:18:51 · The host and caller debate the technical classification of various snacks to determine what qualifies as a true crisp.

A tiny bit of information is held on your device or credit card to allow them to see only what time you checked in, where, and the fact that there's some sort of balance that can pay for the fare

00:28:26 · The caller explains how contactless payment data is stored for transport inspections.

So what the stomach does once it's empty every so often is it does what's called a housekeeper wave. And it's a really strong contraction. where it just pushes everything, all of those juices out of the stomach down into the small intestine.

00:41:24 · The speaker explains the biological mechanism behind the gurgling noises heard in an empty stomach.

We lose our appetite in times of stress because our fight or flight response gets triggered off. And what that does is it sets off a lot of a big surge of adrenaline gets released, those hormones. in order to give us lots of energy to be able to survive whatever situation we're in.

00:44:24 · A listener explains how the body prioritizes survival energy over digestion during stressful situations.

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What makes a crisp a crisp?

In this episode of Mystery Hour, James O'Brien explores a wide range of curiosities through listener interactions. The discussion covers everything from the structural reasons behind horizontal shirt buttons and how urban foxes survive droughts to the technical debate over what truly qualifies as a 'crisp.' The show also delves into human biology and psychology, examining why stomachs rumble when empty, the mechanics of the fight-or-flight response, and the instinctual drive to park near others in empty car parks. Additionally, listeners share insights on Oyster card data storage and the development of mechanical models for pharmaceutical research.

17 syysk. 2026
746-

I've got to smell my dog's paws

In this episode of Mystery Hour, James O'Brien and various guests explore a wide array of scientific, historical, and everyday curiosities. The discussion covers everything from the biological reasons why dog paws smell like popcorn and how ancient civilizations developed base-12 mathematics to the science behind mushroom flavor intensification and the visibility of the moon during the day. Listeners also delve into the mysteries of modern life, investigating why margarine consistency has changed, the mechanics of peanut butter oil separation, and the psychological implications of arm-crossing. The episode concludes with historical insights into battlefield casualty practices and the biological limitations that prevent strawberries from overrunning the world.

10 syysk. 2026
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What's the point of bay leaves?

In this episode of Mystery Hour, James O'Brien and guests explore a wide range of listener inquiries, from the historical ambiguities of leap year dates to why cats are drawn to square objects. The show delves into the science of taste through the concept of umami, investigates the mechanics behind revolving doors, and examines how modern television uses Automatic Content Recognition for targeted advertising. The episode also features a deep dive into industrial history with an interview with Brian, a retired factory worker, who discusses his 32-year career at Heinz and the technical evolution of can production.

03 syysk. 2026
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Smallest living thing in the human body?

James O'Brien hosts a segment of Mystery Hour, engaging with callers on a wide array of scientific, historical, and trivia-based questions. The episode explores topics ranging from the history of chef uniforms and the chocolate textures of Cadbury bars to biological inquiries regarding amoebas, rodent tooth growth, and the scale of viruses. The conversation also delves into the mechanics of the water cycle, the unique business model of Sam Smith's pubs, and the physiological sensations of brain freeze. Through listener interactions, the host explores various curiosities including film trivia involving Frank Sinatra and the sensory experiences of synesthesia.

27 elok. 2026
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Why can we smell rain before it falls?

In this episode of the 'Mystery Hour' on LBC, James O'Brien and guests answer a diverse range of listener questions. The discussion covers human physiology, such as how we regulate body temperature and why we can smell rain before it falls, alongside topics like the legal nuances of court oaths and the behavior of seagulls. The episode also explores technical and scientific curiosities, including the mechanics of maritime weight limits via the plimsoll line, the impact of water density on buoyancy, and the architectural reasons behind arch-shaped railway stations. Additional segments touch upon gardening, specifically regarding drought-resistant weeds and tree fern care.

20 elok. 2026