Glass

Glass is an amorphous (non-crystalline) solid material. Glasses are typically brittle and optically transparent.

The history of creating glass can be traced back to 3500 BCE in Mesopotamia. The term glass developed in the late Roman Empire. It was in the Roman glassmaking center at Trier, now in modern Germany, that the late-Latin term glesum originated, probably from a Germanic word for a transparent, lustrous substance.

Glass is used for: *Glass can be made into bottles & jars. *Glass containers let you see what is inside. *Glass windows let the light into a home and keep the wind and rain out. *Stained glass is very colourful, and is often used in churches. *Mirrors are made by coating glass with silver on one side. These bendy mirrors would distort your reflection, and make you look quite funny. *Glass can be ground into lenses for spectacles, telescopes or magnifying glasses. *Some Christmas decorations are made from glass.

What are your conclusions about the use of glass in architecture/urban planning? I think the glass is a beautiful material that allows passage of light in the building. Is very aesthetic in the architecture, but when glass is used in buildings is a fragile materials and the structure needs more ventilation to counteract the effects of heat when the sun reflects off the glass media type="file" key="glass.wav"