How Light Bulbs Are Made

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said incandescent light bulb is a rather

simple device its base has two metal

contacts which connect to a metal

filament the electric current's

electrons collide with the atoms in the

filament making them vibrate this energy

heats the atoms to 4000 degrees

fahrenheit at which temperature they

emit visible light the light bulb

factory has two production lines that

eventually merge one prepares the glass

bulb the other makes what's called the

mount the electrical components that go

inside it at the start of the mountain

line a machine cuts glass tubing into

pieces of specific lengths the cut tubes

land on what's called a glazing wheel

that runs them through a gas flame for

about seven seconds this heats the glass

enough to smooth the surface

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