The Magic Math Trick That Fools Everyone
The Rest Is Science
How We Date Earth's Water
Hannah explains isotopes, deuterium/tritium, noble gases, and ancient zircons used to date water older than the Sun.
What makes a simple brain-teaser about two identical swords one of the most deceptively tricky logic puzzles of the last century? And why has this seemingly innocent riddle fascinated mathematicians, programmers and puzzle-solvers for decades?
First shared in recreational maths circles before spreading across classrooms and online forums, the “swords of truth” puzzle asks a disarmingly straightforward question — yet its solution reveals deep ideas about reasoning, information, and the limits of what we can deduce from what we’re told.
Is the puzzle just a clever bit of misdirection, or a gateway into the foundations of logic itself? And why does a question about two swords feel so strangely relevant in an age of misinformation?
Welcome to The Rest Is Science: Field Notes.
Every Thursday, Hannah and Michael rummage through their personal troves of scientific treasure and source discoveries that explain our understanding the universe, oddities that scramble our brains, objects that hint at forces we’ll never see...and a few things that are essentially just plain cool.
Expect deep dives into the science behind each pick, the spark that grabbed their attentions, and the sheer delight they get from sharing it all with you.
They’ll also be tackling your questions, so email The Rest Is Science at therestisscience@goalhanger.com.
-------------------
For more information about Cancer Research UK, their research, breakthroughs and how you can support them, visit https://cancerresearchuk.org/restisscience
Cancer Research UK is a registered charity in England and Wales (1089464), Scotland (SC041666), the Isle of Man (1103) and Jersey (247). A company limited by guarantee. Registered company in England and Wales (4325234) and the Isle of Man (5713F). Registered address: 2 Redman Place, London, E20 1JQ.
EXCLUSIVE NordVPN Deal ➼ https://nordvpn.com/restisscience Try it risk-free now with a 30-day money-back guarantee 🌍
-------------------
Find The Rest Is Science all over the internet by clicking here.
-------------------
Video Producer: Adam Thornton
Video & Social: Bex Tyrrell
Assistant Producer: Imee Marriott
Producer: Becki Hills
Senior Producer: Lauren Armstrong-Carter
Head Of Digital: Samuel Oakley
Exec Producer: Neil Fearn
Learn more about your ad choices. Visit podcastchoices.com/adchoices
The AI-powered Podcast Player
