Summary
Written by a model from the transcript; not yet reviewed.
Recorded live at the Royal Institution in London, this episode of No Such Thing As A Fish features the hosts discussing giant pencils, grueling cycle races, Victorian scientific networks, and walking catfish. The hosts unpack historical oddities and surprising natural phenomena, exploring everything from a 12-foot-long ruler and a massive pencil used in a 1968 lecture by Philip Morrison to the brutal cobblestone roads of the Paris-Roubaix bike race and the 19th-century X Club formed by George Busk and Thomas Huxley. Throughout the show, the hosts trade bizarre details about scientific demonstrations, animal behavior, and historical myths, keeping the audience entertained with unexpected connections and trivia.
- Fishermen in Cambodia can use a specialized app and rapid response team to tag and safely return oversized Mekong Giant Catfish to the water. 43:10
- Walking catfish can survive out of water for up to 18 hours and travel over a mile, requiring some pond owners to erect protective fences. 47:59
- The X Club was a 19th-century social network of nine prominent scientists, including George Busk and Thomas Huxley, designed to increase the influence of science. 31:31
Chapters
- 0:00Episode Introduction and Live Show Announcements
Hosts welcome listeners, announce upcoming live recordings and recap the live format of the episode.
- 3:00Royal Institution History and Famous Lectures
The hosts discuss the Royal Institution’s heritage, including Philip Morrison’s giant ruler and pencil demonstrations.
- 15:01The Giant Pencil and Its Legacy
Details about the former world’s largest pencil, its size, and the current record holder are explored.
- 17:49Paris‑Roubaix Cycling Race and Cobblestones
Hosts cover the history, challenges, and cultural quirks of the Paris‑Roubaix race, including cobblestone theft and the race’s nickname.
- 30:30X Club: 19th‑Century Scientific Society
The conversation shifts to the X Club, its founding members, purpose, and influence on modern scientific terminology.
- 41:23Mekong Giant Catfish Conservation Efforts
The final fact discusses the Mekong Giant Catfish, its ecological importance, and a rescue app that returns accidentally caught fish.
- 46:36Catfish Walking and Fence Debate
The hosts discuss the surprising ability of catfish to walk and the need for fences to keep them out of fish farms.
- 48:22Catfish Refling Explained
The term “refling” is introduced to describe catfish’s walking method and the hosts playfully discuss its validity.
- 48:59Roomba Turns to Fish Conservation
The conversation shifts to the Roomba founders inventing a remote-controlled Hoover to capture invasive lionfish.
- 49:31Lionfish Invasion and Roomba Solution
Details of lionfish’s destructive impact and how the Roomba robot can capture and remove them from reefs.
- 50:44Future of Robotic Fish Removal
Discussion on scaling the Roomba fish removal idea, potential AI control, and the feasibility of widespread deployment.
- 52:01Wrap‑Up and Listener Engagement
Hosts thank listeners, provide contact info, and tease the next live episode from the Royal Institution.
Highlights
- 4:09
In a 1968 lecture about scientific scale, physicist Philip Morrison used a 12-foot-long ruler and an enormous pencil to demonstrate concepts of size.
- 13:43
Unusual Lecture Demonstrationsstory
A British urologist once demonstrated a newly discovered substance that caused erections by showing slides of his own body and dropping his pants in front of a conference audience.
- 19:35
Origin of The Hell of the Northinsight
The brutal Paris-Roubaix cycle race earned its famous nickname not from its difficulty, but from the devastated, rubble-strewn landscape cyclists drove through after World War One.
- 32:21
The Naming of the X Clubinsight
The 19th-century scientific network known as the X Club was named by Ellen Busk so the group could easily adapt its discussions to any topic.
- 40:27
Convicts of the Cobblesinsight
A dedicated human maintenance society known as the convicts of the cobbles works year-round to preserve the historic cobblestone roads used in the Paris-Roubaix race.
- 48:04
Because certain catfish can crawl overland for up to 18 hours, fish farmers in Florida have had to build vertical fences around their ponds to keep them out.
Quotes
“The building we are in contains the former world's largest pencil.”
Unnamed speaker · 3:00 “The X Club were more like, 'No, science is science, and religion shouldn't get involved,' and all that kind of stuff.”
Unnamed speaker · 36:49 “They get up to three metres long, they weigh up to 300 kilos.”
Unnamed speaker · 42:08 “The world record is pretty much in the ballpark that you said, so 2.7 metres and weighing 293 kilograms, and that means you could make about 10,000 fish fingers out of it.”
Unnamed speaker · 42:16 “Catfish can walk like 1.2 miles.”
Dan Schreiber · 47:59 “There's even a new word that's been invented called 'refling,' which describes the method by which catfish walk along.”
Dan Schreiber · 48:22 “They can stay out of water for about 18 hours, just walking along, and they kept going in these ponds, and so they were like, 'Stay out of my pond,' and they had to build fences.”
Dan Schreiber · 48:04 “They can eat 20 fish an hour, so that, within five weeks, they can reduce the population by 80%.”
Unnamed speaker · 49:37 “They use their mouth, they use their tail, they use their body.”
Dan Schreiber · 48:31
About this episode
Live from the Royal Institution, Dan, James, Anna and Andy discuss big fish, big pencils and a big coincidence. Missed out on this live show? Get in-person or streaming tickets for the London Podcast Festival here: nosuchthingasafish.com/live http://nosuchthingasafish.com/live Join Club Fish for ad-free episodes and exclusive bonus content at apple.co/nosuchthingasafish http://apple.co/nosuchthingasafish or nosuchthingasafish.com/patreon http://nosuchthingasafish.com/patreon Edited by James Harkin Produced by Leying Lee Team includes Tara Dorrell, Joe Mayo and Ethan Ruparelia Get NordVPN two-year plan + four months extra ➼ https://nordvpn.com/fish It’s risk-free with Nord’s 30-day money-back guarantee. Get an exclusive 15% discount on Saily data plans! Use code [fish] at checkout. Download Saily app or go to https://saily.com/fish
Transcript
10,077 words · 4 speakers
Speaker names marked are inferred from speaking time and the show’s known hosts — they are not voice-verified.
Topics
- catfish
- Hoover
- X Club
- lionfish
- Royal Institution
- Roomba
- Mekong Giant Catfish
- Race Across America
- Panama Canal
- Refling
Page updated · transcript and summary are machine-generated