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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Resumen del episodio

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.

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if we are doing our job correctly at LBC, then we will take calls from people who are unbelievably well qualified to make the contribution that they're making.

00:02:57 · James O'Brien describes the high quality of callers who receive the 'Rayliota' award.

if you do it, I mean, if you melted it down, it's probably identical. But there's something about the mouth feel that makes it taste different.

00:09:19 · The host explains how aeration affects the perceived flavor of chocolate bars.

There's no molecules in a mental image, but there's molecules in a smell. So unless you've got the right molecules there, you're not going to be able to recall the smell.

00:29:30 · The host proposes a molecular explanation for why humans can visualize images but cannot mentally generate smells.

the sudden coldness on your palate sends signals through your nervous system to the front of your brain, which causes what they call referred pain.

00:34:17 · A caller explains the physiological mechanism behind the sensation of a brain freeze.

you can go even further than that and on the oh no so we're going to owe wayne an apology do we owe wane an apology here No, you do, because you can go even further than that and on the periphery of that, of what we define as living as a virus, and they can be a hundredth the size of a bacteria.

00:47:49 · A listener clarifies the scale of viruses compared to bacteria in the context of living organisms.

Episodios

744-

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 ago. 2026
743-

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 ago. 2026
742-

Why does posh slang stay the same?

In this episode of Mystery Hour, James O'Brien and various callers explore a wide range of scientific and social curiosities. Topics include the physics of opening a soda can in space, the behavior of eggs underwater, and why toddlers can accelerate so quickly to escape adults. The conversation also delves into linguistic evolution between urban and posh slang, the visibility of meteor showers, and biological mysteries such as how SPF usage affects freckles and the evolutionary theories behind peripheral vision.

13 ago. 2026
741-

Walking around in a see-through dress?

James O'Brien opens Mystery Hour with news regarding political candidates before diving into a wide-ranging series of listener questions. The episode explores diverse topics, from the social norms of seaside attire and the sensation of 'ghost glasses' to the scientific reasons behind circular planetary craters and the physics of football celebrations. The discussion also touches upon the linguistic origins of historical dating, the persistence of Northern English surnames, and the mechanics of why public toilets may smell. The show concludes by addressing the visual effects of polarizing sunglasses and awarding a prize to a listener.

06 ago. 2026
740-

Harmonica making my dog howl

In this episode of Mystery Hour, James O'Brien and various callers explore a wide array of scientific, historical, and trivial curiosities. The conversation covers topics ranging from the science of milk absorption in porridge and whether birds possess taste buds to the historical origins of Scotland Yard and the etymology of UK place names. The segment also delves into the mechanics of 20/20 vision, the biological processes of egg production in hens, and the unique historical traffic patterns at the Savoy Theatre. From the hygiene of public transport seating to why dogs howl at harmonicas, the episode provides answers to a diverse range of listener questions.

30 jul. 2026