Stuff They Don't Want You To Know Stuff They Don't Want You To Know

CLASSIC: Ancient Flying Machines

Jul 28, 2026 · 52m

Summary

Hosts Matt, Noel, and Ben investigate claims of ancient Indian flying machines, or Vimanas powered by mercury vortex engines. They debunk the *Vaimanika Shastra* as a 20th-century text rather than an ancient source, while exploring mercury’s historical use in tombs and alchemy. The episode also touches on Nazi expeditions to Tibet and modern conspiracy theories about lost technology.

Topics discussed

Intro, sponsors, and episode setup Mercury in ancient history and medicine Mercury in Qin Shi Huang's tomb and Teotihuacan Theories on ancient knowledge transmission Sponsors and ad breaks Vimanas, Vaimanika Shastra, and Nazi expeditions Sponsors and ad breaks Debunking the Vaimanika Shastra and 2015 controversy Lost technology, Prometheus, and modern myths The Hum, listener mail, and outro
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