Learn about Eratosthenes, the famous scholar who measured the Earth's circumference. No, he didn't have are really long tape measure. All he had to do was use a shadow cast by the mid-day sun.
Finally, an ASMR podcast for Smart People! Relax, meditate even. Let the whispered sounds of knowledge seep into your mind.
Podchaser is the ultimate destination for podcast data, search, and discovery. Learn More