

James O'Brien's Mystery Hour
Global
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!
Episodes
Mentioned books

8 snips
Mar 26, 2026 • 47min
Why are there so many breads?
A lively run-through of quirky language puzzles and regional food names. Callers debate handedness and shoe order, and unpack why we say 'on' the Wirral or other places. Regional bread-roll names and their history get a deep dive. Other curiosities include sign-language applause, canal bridge doors, and the origins of paper aeroplanes.

Mar 26, 2026 • 49min
Why don't I burn when I'm cycling?
A lively hour of curious puzzles and quirky science. Callers probe why sunburn behaves differently when cycling, how planes avoid stalling, and what tackle shops do with unsold maggots. Conversations wander through exercise in polluted air, gag reflex triggers, dizziness changes with age, why fizzy water tastes different flat, and why some cats can eat wasps.

Mar 12, 2026 • 47min
Why are letters shaped like that?
A lively roundup of curious origins and oddities. They trace the alphabet back to pictograms and an ox hieroglyph. Listeners debate supermarket absences, crane dismantling techniques, and why barnacles cling to whales. Conversations jump from shampoo chemistry and mirror illusions to the comic tone of the penny whistle and the pole versus post naming quarrel.

Mar 5, 2026 • 49min
Sniffing empty bottles?
Fun science and everyday mysteries get quick, curious dives. Topics include why hot and cold taps sound different, why unopened vinegar bottles sometimes smell like vinegar, and how wild daffodils came to line country roads. Listeners also explore changes in birdsong, tricky strawberry hulls, postbox placement rules, and how satellite orbits are coordinated.

Feb 26, 2026 • 48min
Why is my hamster so ungrateful?
Playful phone-in puzzles about disappearing ‘www’ in URLs and how DNS and redirects hide subdomains. A curious dive into why no mammals are green and how pigment and vision shape color. Listeners trace a football nutmeg name back to spice-trade fraud and fake nutmegs. Quirky looks at hamster escape instincts, baggy military trousers’ riding origins, bobbles on hats and nighttime threadworm behavior.

26 snips
Feb 12, 2026 • 46min
Where did they get the water from for the canals?
Callers puzzle over where 19th-century canals got their water, with talk of rivers, reservoirs and filling practices. Listeners debate why ski jumpers use twigs while other events use blue dye for visibility. There is lively discussion about crisp packet colour coding and how favourites change with mood. Short personal stories about Lego, cooking quirks and bee waggle dances add charm.

Jan 29, 2026 • 45min
Why won't my glasses blow off?
This is a catch-up version of James O'Brien's Mystery Hour. To join the game, call 0345 60 60 973, Thursdays at 12pm.

Jan 22, 2026 • 49min
An insult to science
This is a catch-up version of James O'Brien's Mystery Hour. To join the game, call 0345 60 60 973, Thursdays at 12pm.

Jan 15, 2026 • 48min
Can you feel the tension in a room?
This is a catch-up version of James O'Brien's Mystery Hour. To join the game, call 0345 60 60 973, Thursdays at 12pm.

Jan 8, 2026 • 48min
Is some music too hard to play?
This is a catch-up version of James O'Brien's Mystery Hour. To join the game, call 0345 60 60 973, Thursdays at 12pm.


