Скачать или смотреть How It's Made: Giant Sheets of Glass by Floating Them on Molten Tin!

Every day, over 2 billion square feet of glass is produced worldwide – enough to cover all of New York City in a year! 🤯 But did you know it all starts with pure white sand?

Here’s what hidden factory secrets & amazing tech we uncover: 👇
The journey from 99.9% pure quartz sand to a massive sheet of flawless glass.
The industrial volcano*: a furnace over 200 feet long that melts the raw materials at *2,900°F 🔥.
The magic of the *float process*: how molten glass floats on a bed of molten tin to become perfectly smooth.
The *annealing zone*, where the glass ribbon is slowly cooled to relieve all internal stress.
Laser cutting and high-tech marking that gives each sheet its unique identity ⚙️.

Get ready to see the whole journey, from a quarry in Illinois to a perfectly transparent sheet!
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