The maximum spacing of the supports to avoid fracture of the glass due to its own weight is 1.91m.
Glass is a non-crystalline, frequently transparent, amorphous solid with many practical, technological, and decorative applications, such as in window panes, tableware, and optics. Some glasses, like volcanic glass, are produced naturally.
Glass is most frequently created by rapidly cooling (quenching) the molten form. The most well-known and historically most traditional varieties of manufactured glass are "silicate glasses," which are made from silica, which is the main chemical component of sand (also known as silicon dioxide or quartz).
Ninety percent of all glass produced is soda-lime glass, which has a silica content of around 70 percent. Despite the fact that silica-free glasses frequently have desirable qualities for applications in contemporary communications technology, the term glass is frequently only used to refer to this kind of material in everyday speech.
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