How We Got To Now with Steven Johnson Season 1 Episode 3 Glass

In season 1 episode 3 of How We Got To Now with Steven Johnson, titled "Glass," Steven Johnson explores the fascinating history and evolution of glass. Johnson begins by explaining how glass was first discovered accidentally over 5,000 years ago by ancient Egyptians who noticed that sand turned to liquid when exposed to high temperatures. This discovery eventually led to the creation of glassware, which had a significant impact on the development of technology and innovation throughout history.

Johnson goes on to explain how glass played a crucial role in the rise of the Roman Empire, allowing Romans to create large windows, intricate mosaics, and beautifully decorated glassware. Johnson also delves into the scientific properties of glass, including its unique ability to be molded and shaped while in its molten state.

Johnson traces the evolution of glass through the Middle Ages and into the Renaissance, detailing how it was used in the creation of eyeglasses and telescopes, which revolutionized the fields of science and astronomy. He also explores how glass was used to create mirrors, which had a profound impact on the way people viewed themselves and the world around them.

As Johnson continues his exploration of glass, he delves into the innovations of the Industrial Revolution, which allowed glass to be mass-produced on a large scale, making it more affordable and accessible to people around the world. He uses the example of the Crystal Palace, a building made entirely of glass, to illustrate just how transformative this innovation was.

Throughout the episode, Johnson also examines the environmental impact of glass, exploring both the positive and negative aspects of its production and disposal. He discusses the importance of recycling glass and the ways in which it can be repurposed and reused for a variety of applications.

Overall, "Glass" is an engaging and informative episode that traces the complex and fascinating history of one of the world's most versatile and important materials. Through his exploration of glass, Johnson provides a unique and compelling insight into the complex interplay between technology, science, and innovation throughout human history.