EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing. To request an improvement, please leave a comment on the page.OL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing. To request an improvement, please leave a comment on the page.
Glass is made by melting sand,soda ash,lime,some recycled glass in a furnance at 1900 degree celsius in a liquid state it is drawn on molten lead to make the glass surface flaâ¦t and allowed to cool for 36 hours before packing.(the green colour in th glass appears due the iron content in it)
Before glass, homes must either have been very dark but warm, or light but cold. Smashing Stuff. Glass is sand thatâs been heated to a very high temperature. Obsidian is a natural glass, made by volcanic eruptions millions of years ago. Lightning strikes on sand also produce natural glass, called fulgarites.