🚀 go-pugleaf

In article <1993Jan10.122008.1802@wisipc.weizmann.ac.il> jhsegal@wiscon.weizmann.ac.il (Livian) writes:
>Oh,come on! It is a known fact that the round shapes are more resistable to
>pressure.So ship port holes are round to resist to the water pressure.

This is a non sequitur.  A sphere will indeed withstand more pressure
than a cube of the same volume and skin thickness.  But this doesn't
explain why a round hole in that sphere should be stronger than
a square hole.  I believe the stress analysis required for the latter
case is much more sophisticated than for the former.

Further I would guess that the properties of the round porthole often
are important when there is not even any water *near* the porthole, and
atmospheric pressure is equal on both sides of the porthole.