Changes

== Operation ==

== Operation ==

Fluorescent bulbs consist of [[glass]] tubes filled with low pressure [[mercury]]-[[argon]] vapor. The inner wall of the tube is coated with a white phosphor. A heated filament emits electrons into the vapor, causing the vapor [[atoms]] to emit [[ultraviolet]] light. This ultraviolet light is then absorbed by the white phosphor and re-emitted as visible light.<ref>[http://www.essortment.com/hobbies/fluorescentligh_sowh.htm]</ref>

Fluorescent bulbs consist of [[glass]] tubes filled with low pressure [[mercury (element)|mercury]]-[[argon]] vapor. The inner wall of the tube is coated with a white phosphor. A heated filament emits electrons into the vapor, causing the vapor [[atoms]] to emit [[ultraviolet]] light. This ultraviolet light is then absorbed by the white phosphor and re-emitted as visible light.<ref>[http://www.essortment.com/hobbies/fluorescentligh_sowh.htm]</ref>

== Footnotes ==

== Footnotes ==