ELI5: Explain Like I'm 5

Glass history

Okay kiddo, so imagine you have a sandcastle at the beach, right? Well, glass is made from sand too!

A long, long time ago, people would heat up sand and other things like ashes to make glass. They would mold the hot, melted sand into things like beads and decorations for their homes.

As time went on, people got better at making glass. They learned how to make clear glass, which was great for things like windows because you could see through it!

Then, in the 1800s, a man named Louis Pasteur figured out how to make glass stronger by controlling the temperature when heating it up. This was really important because it meant that glass could be used for things like eyeglasses and fancy mirrors.

Nowadays, we use glass for all sorts of things! We drink out of glass cups and bottles, we use glass in our phone screens and computer monitors, and we even use it to make telescopes so we can see far, far away!

So, there you have it, kiddo. Glass has been around for a very long time and has changed a lot over the years, but it's still one of the most useful materials we have today!
Related topics others have asked about: