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.
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.
via The Awesomer.