Re: Cast iron in zinc
Brake Caliper.
I don't know if this will work but its just my thoughts.
If you take a round container with parallel sides, say 18" tall and 12" in diameter. Put a measured amount of liquid in it to cover the caliper and figure your square inches that way.
IE; Lets say you have 10" of liquid in your container and when you add the caliper it moves the liquid up to 13". Figure the volume of the CYLINDER at 10" and then figure the volume of the CYLINDER at 13". This will give you two answers in CUBIC INCHES. Subtract the two answers (big from little) and that will give you the CUBIC INCH size of your caliper. Divide that answer by 9 that will give you square inches.
Do a Google for that formula for a cylinder.
Hope this helps.
John
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