Re: Chez Watt: There can be no Evolution by natural selection DJT

On Nov 1, 10:37 pm, Christopher Denney <christopher.den...@xxxxxxxxx>
wrote:
On Nov 1, 8:42 pm, Ken Shackleton <ken.shackle...@xxxxxxx> wrote:



On Nov 1, 9:27 pm, Christopher Denney <christopher.den...@xxxxxxxxx>
wrote:

On Nov 1, 7:21 pm, Harry K <turnkey4...@xxxxxxxxxxx> wrote:

On Nov 1, 2:17 pm, Christopher Denney <christopher.den...@xxxxxxxxx>
wrote:

On Oct 29, 2:44 pm, Rusty Sites <SpameYou...@xxxxxxxxxx> wrote:

Christopher Denney wrote:
On Oct 28, 7:44 pm, Rusty Sites <SpameYou...@xxxxxxxxxx> wrote:

<massive snippage>

Yes, but the point was that adding air to the iceberg does not change
the amount of water is displaces.

Actually it does, the iceberg is bigger because of the trapped air,
than it would be if it had no trapped air.
The trapped air displaces ice that would otherwise occupy it's volume.
Thus the density of the iceberg is less than just ice. (i.e. it's
bigger for the same mass of ice)
Thus the amount of water, per unit mass, displaced is increased.
That means that for every unit of mass of ice, the iceberg with air
trapped will ride higher in the water ...

No. A floating object displaces its weight(mass) in the liquid. The
shape of a floating object has no effect on it's mass. The only way
the berg will displace more water is if you add mass to it amd adding
air at atmospheric pressure does not do that.

Harry K

Harry K

Nope, totally wrong.

Actually, Harry is totally correct.

[snip]
Yeah I read that as "The shape of a floating object has no effect on
it's buoyancy", my bad.
(I'll blame the beers at this point.)- Hide quoted text -

- Show quoted text -

Well, your reading of that is correct. It doesn't have an effect. If
a shere floats in water it will displace a given mass of water
equalling the mass of the sphere. Now form the sphere into a hollow
box and float it, it will still displace the same amount of water
_even though it will float higher_.

The point of the discussion is "how much water is displaced", not "how
much surface is explosed".

Harry K

.

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