Author: Dr. John Lienhard

Episode: 1521 John P. Parker, slave, freedom-fighter, inventor, and businessman.  Today, we follow a slave out of slavery.

Episode: 1520 In which automobile makers gradually learn aerodynamics.  Today, aerodynamics and automobiles.

Episode: 1519 Learning to acquire knowledge and create it at the same time.  Today, we wonder where knowledge comes from.

Episode: 1518 A concern about computers and the redefinition of reality.  Today, we try to tell fact from fiction.

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.