How was glass made in ancient times?

More than 3000 years ago, a European Phoenician merchant ship loaded with crystal mineral "natural soda" sailed on the Berus River on the Mediterranean coast. The merchant ship ran aground. The crew used a few pieces of "natural soda" to support the cauldron, cooked it on the beach, and found something shiny after dinner. These shiny things are stuck with some quartz sand and melted natural soda. Under the action of flame, the crystal produced by chemical reaction with quartz sand on the beach is the earliest glass. Later, the Phoenicians mixed quartz sand with natural soda, and then melted it in a special furnace to make glass balls, which made the Phoenicians make a fortune.

1688, a man named Fu Na invented the method of making large pieces of glass. Since then, glass has become an ordinary article.

The glass used now is made of quartz sand, soda ash, feldspar and limestone at high temperature. An amorphous solid material obtained by gradually increasing the viscosity of the melt during cooling. Sex is clear and transparent. Silicate glass is made of quartz sand, soda ash, feldspar and limestone through mixing, high-temperature melting, homogenization, processing and molding, and then annealing. Widely used in construction, daily use, medical treatment, chemistry, electronics, instrumentation, nuclear engineering and other fields.