glass, n.All

Recycling one glass jar saves enough energy to watch TV for 3 hours

Dram', (which is slang for a glass of whisky), was likely an apothecary’s units of measurement.

Pistol shrimp can make a noise loud enough to break glass.

Glass is just caramelized sand.

Glass is more elastic than you think --- a ball of glass will bounce higher than a ball of rubber.

Glass is silent until broken.

A Glass is only half empty if you're drinking it. A glass is half full if you're in the process of filling it. It's all dependent on the action really.