I heard this once and I think many posters might like to think about it:
You are running the Panama canal, and you want to use less water in the locking system (which raise and lower ships and boats as they go through the parts of the canal that are not all sea level). So you decide that to empty or fill a lock with a small boat must take a lot more water than to do the same with a large ship that almost completely fills the lock (i.e. there is a lot more water around the one little boat in the lock than around the big ship). So you only will allow large ships to transit the locks to let you use less water to move them up or down.
Are you correct?
You are running the Panama canal, and you want to use less water in the locking system (which raise and lower ships and boats as they go through the parts of the canal that are not all sea level). So you decide that to empty or fill a lock with a small boat must take a lot more water than to do the same with a large ship that almost completely fills the lock (i.e. there is a lot more water around the one little boat in the lock than around the big ship). So you only will allow large ships to transit the locks to let you use less water to move them up or down.
Are you correct?
via International Skeptics Forum http://ift.tt/1Nyh06d
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