Re: Skepticism and Plate tectonics

On Oct 31, 8:20 pm, first_name@xxxxxxxxxxxxx (Florian) wrote:
Darwin123 <drosen0...@xxxxxxxxx> wrote:
I respectfully disagree with the conclusions of the references that you
gave. I am not challenging their data, I just don't believe they have
considered the most obvious alternatives.
Such as a dinosaur being both cold-blooded and having a four-
chambered heart. Anyway, wasn't this a small dinosaur (<60 feet)? I
thought I made it clear. Yes, some small dinosaurs had warm blood.
Sorry but, In the article about the four chambered heart, the authors do
not make assumption about the level of oxygen in the Jurassic. They
remark that a four chambered heart would significantly improve
oxygenation of the body. Definitively a huge evolution advantage if the
oxygen level was about 10% when dinosaur began to rule. Far from
inconsistent, this is actually very logic.
Then these guys are idiots. It would improved the oxygenation with
or without the warm blood. Crocodilians are cold-blooded and have four-
chambered hearts. There is no reason to correlate being warm-blooded
with four chambers. Some pelagic fish, such as deep water sharks, have
warm blood and only two-chambers in their hearts.

First, the conservation of mass does not have to be broken as the mass
has to condense from energy.
Secondly this energy has certainly momentum that is conserved in the new
mass.
Why certainly? When ice condenses on an airplane wing, or on
any moving object, the water vapor doesn't add momentum. When you roll
a ball in the snow and ice sticks to it, the ice doesn't have extra
momentum. You are describing a condensation process with no physical
analog.
So there are no need to break the conservation of momentum either.
The true question is where does that energy come from.
And the linear momentum, and the angular momentum. I am pointing
out that mass is not the only thing in your model that is increasing.
The kinetic energy, the linear momentum, and the angular momentum are
all being manufactured simultaneously in the exact ratios as to keep
Keplers Laws unchanged.

[Mode wild speculation ON]

I would personally lean toward an aether sink theory of gravitation. To
make a long story short. Mass (matter) would catalyze the condensation
of aether in more matter. That condensation would consume aether,
creating a low pressure of aether in the process (gravitational field)
attracting more aether and so on.>

Not all dinosaurs were warm blooded. I believe the evidence
that many if not most of the smaller ones were warm blooded. The large
ones were cold blooded in the sense of thermoregulation.

Large dinosaurs were cold blooded?
Cold blooded with respect to thermoregulation. Their temperaturewould have to be high even without thermoregulation. >>The body generates heat even in a coldblooded animals resting phase. The surface to volume ratio is smaller for a large animal.
It is possible that young dinosaurs were
warm blooded and turned cold blooded as they grew.

So let's say that the metabolism changed during the growth (still wonder how?)
Thermoregulation can by definition be regulated. Our temperature
changes during a fever. When the infection starts, out temperature
goes above normal (the fever), when the infection is stopped, the
temperature drops below normal (the cold). Ever wonder where the words
"fever" and "cold" come from?
Still need a very efficient respiratory system especially as the
concentation of oxygen was about 10%, right?
The oxygen concentration was not 10%. Regardless, a large animal
would still cook.
Therefore,
there had at some point have been a spectrum of animals from warm to
cold blooded. So one would not expect all dinosaurs to be warm blooded
at all times. Read "Origin of the Species."

Sorry but Darwin is a bit outdated :-)
Evolution is more about bursts than small progressive modifications. The
main engine of evolution is clearly the alteration of gene regulation
(evo-devo) which leads to dramatic enhancements over a short period.
Punctuated equilibrium describes how organisms branch out. When
evolution gets speeded up, the result is almost always an rapid
differentiation (i.e., explosion) of new forms. The old doesn't
automatically drop dead because of the new has come in. There is no
reason to automatically assume that all cold blooded from which the
dinosaurs descended dropped dead. They didn't. Look at
crocodilians.
Its like the feathers. "All" dinosaurs have feathers, right? We
found a few dinosaur fossils with feathers, right? Well, hadrosaurs
did not have feathers. Fossilized skin molds show that hadrosaurs did
not have feathers. Other dinosaurs show protofeathers. There is an
entire spectrum of feather types, even in those Chinese fossil
dinosaurs.
There is no more reason to think that all dinosaurs had warm blood
than that all dinosaurs had feathers. The sharp differences between
dinosaur and bird were clear after the KT, but there was no sharp
demarcation between feathered and unfeathered dinosaurs before the KT.
Natural selection is still a slow, subtractive process. Even with
punctuated equilibrium.
You really don't understand the punctuated equilibrium theory. A
speeded-up rate of evolution means more intermediate types at any one
time, not less. Example: When humans evolved, there were at least 10
other hominid species that arose with humans. All hominid species and
the great apes all lived simultaneously at the same time. The reason
there is a difference between the great apes and humans is that
intermediate species have been subtracted. The evolution of these
species was fast, the subtraction occurred in stages.

bodies as, I remind you, we have not clue on...

read more »

There was no more in your message. But on that note, I take my leave
you.

.

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