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! You can email the show below and get involved at any time jamesobrienshow@global.com for regular listeners or jamesobrienPlus@global.com for subscribers. For advertising opportunities on this podcast, email: GlobalStudiosSales@global.com
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Episode's summary

In this episode of Mystery Hour, James O'Brien explores a wide array of historical, scientific, and linguistic curiosities through listener questions. The discussion covers topics ranging from the biological mechanics of sneezing and the genetics of left-handedness to the commercial origins of three-volume novels and the etymology of phrases like 'dead ringer'. The show also delves into various trivia points, including why some people are more photogenic than others, the salinity of the ocean, and the practical reasons behind naming fighter jets. The episode concludes with a debate over historical accuracy as James awards a game to a caller.

Chapters

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Highlights

The only real rules are that you're not allowed to look stuff up.

00:00:27 · James O'Brien explains the fundamental rule of the Mystery Hour game to prevent contestants from using the internet.

It's so they know which plane to get into.

00:17:31 · A caller provides a practical explanation for why names are written on the sides of fighter jets.

The people who are photogenic are the ones who can relax in front of a camera.

00:23:29 · A professional photographer explains that being able to relax is more important for good photos than physical perfection.

your urethra goes through the pelvic floor for both men and women to go out and urine from the bladder. to the outside to where it's a penis to the vagina.

00:35:20 · A biological scientist explains the anatomical reason why sneezing can cause a temporary cessation of urine flow.

So, mixed with the alcohol, it used to make people appear, when they were drunk, as if they were dead, and they'd bury them alive.

00:46:28 · A caller proposes a theory that the phrase 'dead ringer' originates from lead poisoning in pewter tankards causing people to be mistakenly buried alive.

Episodes

752-

My dogs' strange relationship with the butchers?

In this episode of Mystery Hour, James O'Brien explores a wide array of historical, scientific, and linguistic curiosities through listener questions. The discussion covers topics ranging from the biological mechanics of sneezing and the genetics of left-handedness to the commercial origins of three-volume novels and the etymology of phrases like 'dead ringer'. The show also delves into various trivia points, including why some people are more photogenic than others, the salinity of the ocean, and the practical reasons behind naming fighter jets. The episode concludes with a debate over historical accuracy as James awards a game to a caller.

22 Oct 2026
751-

Isn't this a motoring question?

In this episode of Mystery Hour, James O'Brien takes calls from listeners presenting various enigmas, ranging from the etymology of 'Wendy houses' and the origin of the word 'limb' to the mechanics of sharpening razors on leather. The show explores diverse topics including the utility of pedestrian crossing buttons, the role of pheromones in human attraction, and the history of Roman numerals on clocks. Listeners also engage in debates regarding political messages, the definition of general knowledge, and technical explanations provided by experts, such as a roads policing officer explaining traffic light sensors. The episode concludes with discussions on physical reactions and the scientific consensus regarding biological drivers of attraction.

15 Oct 2026
750-

Why is three the magic number?

In this episode of Mystery Hour, James O'Brien and guests explore a wide range of scientific and evolutionary curiosities. The discussion covers everything from DIY fruit fly traps and the physics of candle flames to why humans experience 'nose blindness' and the evolutionary reasons behind our preference for expansive views. The show also tackles various listener questions regarding the sensory capabilities of birds, the nutritional differences between types of salt, and the mechanics of how rain can lead to car tire punctures. From aquarium fish behavior to the significance of the number three, no mystery is left unexamined.

08 Oct 2026
749-

How did ancient buildings end up buried?

James O'Brien hosts the 'Mystery Hour,' where callers present questions for the host and listeners to answer without looking up information. The episode covers a wide range of topics, including the mechanics of how archaeological buildings become buried, the historical origins of the full English breakfast, and why pigs are a staple breakfast meat. The discussion also explores various scientific and psychological phenomena, such as the utility of altitude displays on Norwegian trains, the biological relationship between trees and fungi, and the concept of inattentive blindness. Additionally, callers touch upon lighter subjects like the habits of radio callers and whether TV quiz shows edit pauses into their broadcasts.

01 Oct 2026
748-

Who's filtering these callers?

In this episode of 'Mystery Hour,' James O'Brien and various callers explore a wide range of curious questions spanning biology, linguistics, and history. The discussion covers everything from the functional purpose of the small pocket on jeans and the origins of the exclamation 'ow' to the complexities of the human swallowing reflex and the development of regional accents in British Sign Language. The segment also delves into physical phenomena, such as the mechanics of tongue movement while chewing, the electrical differences between US and UK power grids, and how the autonomic nervous system triggers wakefulness. Ultimately, the episode connects these seemingly unrelated topics through the common theme of involuntary physiological responses to stimuli.

24 Sep 2026