"To this I answer first, that nobody can suppose bodies to be put into
the water without their being wet, nor do I wish to do more to the
board than you may do to the ball. Moreover, it is not true that the
board sinks on account of the weight of the water added in the washing;
for I will put ten or twenty drops on the floating board, and so long as
they stand separate it shall not sink; but if the board be taken out,
and all that water wiped off, and the whole surface bathed with one
single drop, and put it again upon the water, there is no question but
it will sink, the other water running to cover it, being no longer
hindered by the air. In the next place it is altogether false that water
can in any way increase the weight of bodies immersed in it, for water
has no weight in water, since it does not sink. Now, just as he who
should say that brass by its own nature sinks, but that when formed into
the shape of a kettle, it acquires from that figure a virtue of lying in
the water without sinking, would say what is false, because that is not
purely brass which then is put into the water, but a compound of brass
and air; so is it neither more nor less false, that a thin plate of
brass or ebony swims by virtue of its dilated and broad figure. Also I
cannot omit to tell my opponents, that this conceit of refusing to bathe
the surface of the board, might beget an opinion in a third person of a
poverty of arguments on their side, especially as the conversation began
about flakes of ice, in which it would be simple to require that the
surfaces should be kept dry; not to mention that such pieces of ice,
whether wet or dry, always float, and as my antagonists say, because of
their shape.
Public-domain text, read in full here on John Shaqi.
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