donacheson
Contributor
In the Nov/Dec 2003 issue of Alert Diver on page 32 the following statement appears: "A diver displaces an amount of water equal to his combined body and equipment masss." Ignoring the mispelling of the word "mass" and the failure to distinguish between mass and weight, the statement is WRONG. It's true ONLY for a diver or any other object which is floating.
If it were always true, nothing would ever sink since, as the two sentence which follow it, correctly state, "The weight of this displaced water acts as an upward force. The weight of the diver and his equipment is the downward force." and the upward force of buoyancy would always exactly balance the downward force of gravity.
If it were always true, nothing would ever sink since, as the two sentence which follow it, correctly state, "The weight of this displaced water acts as an upward force. The weight of the diver and his equipment is the downward force." and the upward force of buoyancy would always exactly balance the downward force of gravity.