Author: Dr. John Lienhard

Episode: 1474 Alfred Ely Beach builds a secret subway in New York City.  Today, a secret subway.

Episode: 3340 We look at the curious mechanics behind scissors.  Today, let’s look at scissors.

Episode: 1473 Two unsinkable ships: the Titanic and the Great Eastern.  Today, a story of two ships. One sank. One didn't.

Episode: 1472 New uses for huge numbers.  Today, big numbers find new meaning.

Episode: 1471 Some thoughts about immigrants, depression, suicide & Jamestown.  Today, a story about Jamestown and self-destruction.

Episode: 1470 Occam's razor and engineering design.  Today, we cut with Occam's razor.

Episode: 3338 An old Century Magazine tries to predict future warfare.  Today, we predict warcraft.

Episode: 1469 The hourglass: the poor man's clock, the poor man's metaphor.  Today, let's look at the hourglass.

Episode: 1468 The evolution of the bicycle.  Today, let's talk about bicycles and freedom.

Episode: 3337  Claude Bernard’s important medical science, horrifically achieved.  Today, let’s meet a problematic scientist.