What is the purpose of bridges?

[Phillesh]

I dont know...never really found a purpose for them?

[cyberfret]

??? Without a bridge on your guitar, for one the strings would not be propped up so that they could vibrate and create a sound. They would just lay flat against the fretboard ??? But I am guessing that you mean something else :)

--Shawn

[gck]

maybe you mean a tremolo/vibrato/floating bridge?