Author: Dr. John Lienhard

Episode: 1462 Jedidiah Morse, geographer and Samuel F. B. Morse's father.  Today, Jedidiah Morse's geography.

Episode: 1461 George Everett Hale and BIG telescopes.  Today, we look through some really big telescopes.

Episode: 1460 The little-known Japanese art of Chindogu.  Today, the odd Japanese art of Chindogu.

Episode: 1459 A tongue-tied attempt to say what teaching is.  Today, teaching and ambiguity.

Episode: 1458 The brief bright day of the electric trolley in Houston.  Today, let's ride the Houston trolley.

Episode: 1457 Eratosthenes's 2200 year old calculation of Earth's size.  Today, we measure the earth.

Episode: 1456 In which paper goes from China to Europe by way of Samarkand.  Today, paper makes a long journey.

Episode: 1455 A brief history of dentistry and pain.  Today, we drill teeth.

Episode: 1454 The sometimes astonishing results of juxtaposing contradictory ideas.  Today, a thought about juxtaposition and contradictions.

Episode: 3332 From DC Dynamo to AC Alternator.  Today, the dynamo.