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

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.

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Destacados

So why was it last week I was struggling when it was 37 degrees outside?

00:05:51 · A caller named Danny asks why he feels uncomfortable in 37-degree weather if that is the average human body temperature.

you fly around and you see, for example, someone at Glastonbury trying to get it all back in his box, or you see a big tractor ploughing through a field, and you fly back to the flock and you say, lads, I have found our lunch

00:14:19 · The host humorously imagines how seagulls might communicate the discovery of food to their flock.

So we are actually a balance between... the heat that we produce and the necessity to actually lose heat and temperature to maintain it's like a seesaw

00:23:28 · A medical professional explains the physiological importance of balancing heat production and loss to maintain core body temperature.

one of the mechanisms that we use to lose temperature is evaporation, which answers the question, why is it nice to stand in a swimming pool with nice water over your body when you have a lovely evaporation so you can enjoy the temperature of water and enjoy the evaporation to keep you nice and cool as well.

00:26:36 · An anaesthetist explains how evaporation helps regulate body temperature.

So salt makes water more dense? Yes, which makes the vessel float more.

00:41:38 · The speakers discuss how salinity affects water density and its impact on ship buoyancy.

Episodios

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
739-

Do crabs have a dominant claw?

James O'Brien hosts a 'Mystery Hour' segment where callers present various enigmas for the audience to solve. The episode covers a wide range of topics, including the etymology of 'peppermint', the spelling history of Boreham Wood, and the requirements for installing hedgehog crossing signs. The discussion expands into diverse subjects such as the physics of solar energy reflected by the moon, historical reasons for driving on the left side of the road, and the mechanics of injury time in rugby versus football. The episode also explores US political registration strategies, motorway numbering systems, and the evolutionary biology and communication methods of fiddler crabs.

23 jul. 2026