Helium is a light bulbs filler gas. Due to different speed of sound, inhaling helium would made a duck like sound when speak. However, helium is not the laughing gas (though it give out funny effect). Laughing gas is actually nitrous oxide.
Tungsten is an element often found in cheaper light bulbs.
Tungsten
Tungsten
Tungsten
Mercury Vapor
Tungsten is an element often found in cheaper light bulbs.
Argon(or nitrogen) and tungsten are used in incandescent light bulbs.
Tungsten
Tungsten
Tungsten
Florine
Tungsten
Tungsten
Tungsten is an element. It is used in bulbs
Nitrogen
carbon
Usually tungsten.