Volcanic glass or obsidian maybe gave someone the idea. Or, maybe, the nodules of glass that can form when lighting goes to ground through sand. In any event, glass is made by heating sand until it melts.
Actually, the sand particles have to be separated first. If you just melted sand you would get a dark, non-transparent glass. You have to find the clear crystals in the sand to make glass. It is then melted and either blown or molded into the desiered shape. Glass was probably discovered after a volcanic eruption near a beach.
Glass was first created by the Phoenicians and the Egyptians. The Egyptians used it as a glaze for pottery. This occured around 2500 B.C.
Glasses were invented by a series of processes,1, you would have a machine that made the lenses, since they were invented a long time ago, when they made them back then they were not very accurate nor did they work very good. when the first glasses were made they did not have "arms," but later on around the 1600 century they invented glasses with so called "arms" if you will.
The term glasses commonly refers to two different kinds of things, which are, drinking glasses (made to drink out of) and spectacles or corrective lenses, made to correct defects of the human eye so that people can see more clearly.
Since you've chosen Spectacles as your category, it's clear you want to know about the type of glasses usually worn on the bridge of the nose to make vision easier if you have a condition which indicates their use.
Forms of glasses, or eyeglasses, are recorded back as far as ancient Egypt; simple lenses have been used throughout history to assist long- or short-distance vision, and coloured lenses have been used for hundreds of years in order to protect the eyes and make vision easier in sunlight or other bright light.
To help people see better. Because some people can't see as well as others. And back then, when there WEREN'T any glasses, people walked around seeing everything all blurry. That's why even today people still wear glasses. And guess what? I'm one of them! XD
No-one knows exactly when or where glass was first made . Glass appears to have been around as far as the second millennium BC by the Egyptians and perhaps the Phoenicians .
it was invented so that people could have glass instead of sometghing different to decorate there house or cars.
Wine glasses are usually, and most often, made from lead crystal.
One can purchase custom made glasses at Kaiser hospitals that have a glasses store. Most Kaiser hospitals have such stores. Custom made glasses are very expensive and take a long time to make.
these are glasses ( bowl on a stem) that are made especially for drinking wine.
Yes. I do have a pair of glasses specially made for basketball.
In several countries.
glasses
no
Don Lemon has never revealed who makes his glasses
Safety glass are made to be worn in situations where there is some danger of things flying into the eyes. They are large enough to fit over regular glasses and made of break-resistant materials.
"Reidel wine glasses are made in Austria. The Reidel Glas companies headquarters is located at 6330 Kufstein, Austria and they offer the finest functional wine glasses."
at a movie
China