Episode: 1716 Bounding Billies: The century-long reign of the wound-rubber golf ball.  Today, our guest, operations researcher Andrew Boyd, tells about the simplest of toys, the golf ball.

Episode: 3090 Friedrich Richard Petri.  Today, drawing the frontier.

Episode: 2888 The Strength Through Joy Car: Hitler's Volkswagen and American Consumer Culture.  Today, the "strength through joy" car.

Episode: 1096 Ktesibios invention of the pipe organ in the 3rd century BC.  Today, the invention of the pipe organ.

Episode: 1095 The lesion within: Medicine learns look inside the human body.  Today, we try to locate the seat of disease.

Episode: 1622 Fingerprints, crime detection, and identification.  Today, I ask, "Who are you?"

Episode: 1621 Motherland: The Stalingrad Memorial.  Today, we visit a really big statue.

Episode: 2855 Plainchant, Gregorian Chant, and Today's Music.  Today, plain and simple.

Episode: 1094 Mesa Verde: Another civilization abandonded at its peak.  Today, we ask about permanence in a civilization.

Episode: 2822 Herodotus describing historical events of 5th century BC, fantastical and entertaining component of The Histories.  Today, we visit Herodotus.