It sounds silly at first. but what is your weight? 
take your weight at the equatore then the pole.
They shoud Not be the same.

The earth is spining? so at the equatore you
are moving faster and with centrifugal force.
so you are being thrown up and away.

If I tell you how fast you will not belive me so,
The Earth is spining at speed, but what is it?
find out how much the earth is from one side to the other side.
times this by Pi 3.14159.  24 hours in a day,

so divied what you got by 24.
that is how fast you are moving at the equatore!
stand at the pole! you have no centrifugal force?

So you are heavy at the pole and um! you may fly off at the equatore!

Please tell me Has any one spoken about this before?

Thank you for your time.
No grammar police. its off topic!