Author: Dr. John Lienhard

Episode: 1517 The very odd bridge that Roebling almost built.  Today, a strange bridge.

Episode: 1516 In which we must save the lore as well as the plants.  Today, we have to save more than the endangered plants.

Episode: 1515 The would-be discovery of oxygen and scientific revolution.  Today, let's try to find out who discovered oxygen.

Episode: 1514 The resistance movement: a look at ongoing evolution.  Today, we watch creatures evolving around us.

Episode: 1513 The Accidental Creationist: In which science changes with the telling of it.  Today, the problem of telling about science.

Episode: 1512 The corner store: a retail outlet that is lost but not forgotten.  Today, let's buy candy at the corner store.

Episode: 1511 In which the lotus blossom gives a lesson in engineering design.  Today, lotus petals and high-tech.

Episode: 1510 Thomas Sopwith's hundredth birthday.  Today, we meet the oldest airplane designer.

Episode: 1509 Late 18th century competition among roads, canals and railways.  Today, we look at roads, canals, and railways.

Episode: 1508 The alchemists and chemistry before the middle 19th century.  Today, we remember alchemy.