The first big slide took place in a theatre in Paris in the 1790s after the Revolution. After waiting for a few minutes in total darkness with the eerie background music of a glass harmonica, the audience begins to see various shapes appear in the sky, which appear to be light and shadow patterns floating and gliding through the air. These ghosts are pale and lifelike, and can talk, shout, and cry. One of the ghosts is a bleeding nun, first coming closer and then gradually moving away. Later slides involve the ghosts of recently deceased public figures, who are said to have been summoned by the power of science. Because that's how these shows are marketed: it's an intersection between science and religion, faith and enlightenment. They're scary, but they're also hilarious.
French green float glass, often celebrated for its unique aesthetic qualities and practical applications, holds a prominent place in the world of architecture and design. Its distinctive green hue, resulting from the iron content in the raw materials used in its production, adds a touch of elegance and warmth to modern structures, making it a favored choice among architects and designers.
In an article in the Atlantic, glass was called humanity's most important material. In order to connect you and me, writes Douglas Main, these words are encoded into optical signals that travel at 300, 000 kilometers per second through fiber-optic cables, across mountains, underwater, across cities and countries, and across the globe. The glass inside these cables is thinner than a human hair and 30 times more transparent than the purest water. Glass allows us to see and be seen, to hear and be heard, to light up our rooms, our lives and our thoughts.