
Instant Genius The science behind Agatha Christie’s poisons
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Jun 12, 2025 Kathryn Harkup, a chemist and author of 'V is for Venom: Agatha Christie’s Chemicals of Death,' dives into the fascinating world of poisons in Agatha Christie's novels. She reveals Christie's remarkable grasp of chemistry, showcasing a variety of deadly substances that enrich her plots. Listeners will learn about the dual nature of compounds like phosphorus and the chilling effects of drugs like opium. The discussion offers a captivating blend of science and storytelling, making it both enlightening and a bit macabre!
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Deadly Liver Damage by Phosphorus
- White phosphorus kills mainly by destroying the liver function. - The only antidote is a liver transplant, making it highly lethal.
Poisons Used as Heart Medicine
- Some poisons, like strophanthin and digitalis, have medicinal heart benefits in tiny doses. - Precise dosing is critical to avoid their potentially fatal toxicity.
Barbiturates and Alcohol Synergy
- Barbiturates and alcohol act on similar brain receptors amplifying sedative effects. - Combined use can dangerously relax breathing, making overdose fatal.





