Originally Posted by
TimothyH
A cog is a tooth on a sprocket or gear.
A sprocket is a round disk with cogs.
A pulley is a round disk without cogs.
Gears are two sprockets which mesh together. Gears don't use chains.
When gears are separated from each other and connected with a chain they become sprockets.
You don't change gears on a bicycle. You change sprockets.
-Tim-
I agree with everything that you say. Just as soon as I can get folks to stop using the word "alloy" as a synonym for "aluminum," I am going to join your crusade.
__________________
My greatest fear is all of my kids standing around my coffin and talking about "how sensible" dad was.