Next, watch Glas, The Glass Ribbon Machine, Borrowed Light, How the Baccarat crystal studio makes a blown crystal chandelier, and from Sick Science: How to build your own DIY light bulb.
An incandescent light bulb… is an electric light with a wire filament heated to such a high temperature that it glows with visible light (incandescence). The filament, heated by passing an electric current through it, is protected from oxidation with a glass or quartz bulb that is filled with inert gas or evacuated… The light bulb is supplied with electric current by feed-through terminals or wires embedded in the glass…
Incandescent bulbs typically have short lifetimes compared with other types of lighting; around 1,000 hours for home light bulbs versus typically 10,000 hours for compact fluorescents and 30,000 hours for lighting LEDs.
via The Awesomer.