Fwd: heavy metal !!!!!
From: "Brian Bilderback" <bbilderback@h...>
Date: Wed, 05 Dec 2001 13:22:55 -0800
Subject: Fwd: heavy metal !!!!!
More from the Oitjuan creator:
"The Irish are the only race of people on Earth for which psychoanalysis
is
of no use."
- S. Freud
>From: "FUCHS_001"
>
>Brian,
*snip*
>
>Now, as to the matters at hand:
>
>1)With regard to the inverted-triangle cross-section providing
stability in
>windy conditions, one viewer wrote, "Assuming they remain
dorso-ventrally
>flattened and close to the ground, right?"
>
>Actually, remaining close to the ground should not be necessary, so
long as
>they remain horizontal. Sort of "down on all six", so to speak. As
long
>as they stay in this position, they're free to raise themselves as high
off
>the ground as their legs will allow. The flat dorsal and angled
ventral
>surfaces would work as an inverted wing, increasing their traction on
the
>ground. Pretty much the same concept as ground effects on a race car.
>
>Side note: I did struggle a bit with the legs. At first, I was going
to
>make them short and stubby and place them directly underneath the body.
>This made for an unattractive appearance, and a total lack of agility,
but
>given the weight of these creatures I could see no way around it. Then
I
>realized that the reason all heavy land animals on this planet followed
>that particular arrangement is directly related to the limitations of
>carbon-based bones and muscles. The limbs of a metal creature could
>withstand far greater stresses. In fact, nothing says that these
creatures
>necessarily represent the high end of the weight spectrum in their
>ecosystem.
>
>2) As for the flat dorsal surface protecting against aerial predation;
>Quite true, airborne predators large enough to grip both sides at once
>would be their nemesis. Originally, I envisioned them with the flat
part
>on the bottom, and the ridge along the spine. But they just looked
>butt-ugly,and I could not see any way to get their front two segments
>vertical (a pose resembling a centaur) so they could use their first
two
>appendages in their primary role, as manipulators.
>
> Attacks from underground are of course still a threat. However, the
>angled surfaces on the underside would serve to deflect attacks of the
>striking variety by predators which rely on piercing their prey with
some
>equivalent of claws or fangs. Grasping predators, such as those who
employ
>some form of tentacles, for example, pose a real threat.
>
>BTW: what would you use for poison on a metal-eating, acid-breathing
>organism? Corrosive agents? Some kind of extremely alkali fluid? Is
>milk-of-magnesia lethal to these things? Or perhaps an insulating foam
to
>interfere with the propagation of electricity through the body, causing
>muscle-paralysis? Or a highly conductive substance to short-circuit the
>biological functions.
>
>3) Size-Limitation Imposed by Exoskeleton:
>This is a topic to which I devoted considerable thought in my
childhood. I
>was crazy about those "giant insect" movies. In school we were taught
that
>there was no reason to fear an attack by giant insects, because insects
>breathe through their skin, and above a certain size air would not be
able
>to reach all the internal organs. Teachers told us this in order to
>reassure us. It was a great relief to many students. To me it was a
major
>bumber!
>
>With this life-form, there are a number of ways this problem could have
>been circumvented. One possible solution presented itself as I was
looking
>at the body cross-section as an inverted wing. In the mid-'60s, the
United
>States Air Force experimented with the concept of laminar flow. They
>theorized that an airplane wing could generate lift without creating
>turbulence if a series of near-microscopic holes were drilled through
the
>width of the wing, from its leading edge to its trailing. These tiny
>air-holes, literally millions of them, actually worked. Of course, the
>expense of building a wing with all of these holes in it (and even
greater
>expense of keeping the holes clear), were completely out of proportion
with
>the small increase in aerodynamic performance. However, breathing is
>somewhat more important, and may be worth it.
>
>Another possibility is that the acid-metal reaction might penetrate
more
>deeply than oxygen-carbon respiration.
>
>However, the simplest solution is probably the one I came up with as a
>child. As far as I can tell, there is no reason why a creature with an
>exoskeleton can't have lungs. In this biosphere they don't, but that
>doesn't mean they couldn't.For that matter, there's no reason why a
>creature with an exoskeleton could not also have an endoskeleton. In
fact,
>that is very nearly the case with shelled creatures such as turtles and
>armadillos.
>
>4) Grace under Pressure (Pressure under Grace?)
>Yes, I have seen specimens brought up from the ocean floor by DSV's.
It
>was pretty startling to see anything survive such a radical change.
>However, if the Oijuan do have lungs, and a cardiovascular system,they
>would probably pop. Of course, the word "pop" takes on a whole new
meaning
>when you're talking about a 20 ft.-long creature with a metal casing.
They
>must "pop" like the boiler room in "The Shining"!
>
>5) The "Slow-Thinking" Thing:
>I'm working on wording of the explanation to that one...just give me a
few
>minutes ; -{ )
>
>It's the same reason computers have exhaust fans. When you're sending
>information as a series of electrical impulses through metal, heat is
the
>enemy. Heat is electromagnetic energy, just like the signal that
travels
>through your brain, constituting the physical manifestation of what we
call
>"thought". Increasing the amount of heat increases the "background
noise"
>over which the electrical pulse must be "heard". It also adds to the
amount
>of energy in the pulses themselves, making them "fat", so they spread
out
>over a wider area. Of course, if the centers of two of these "fat"
>electrical pulses are close together, their trailing and leading edges
will
>overlap, and the neuron in the brain will receive a steady stream of
>electricity, rather than individual pulses. A creature with an
extremely
>high body temperature must leave more space in between signal pulses in
its
>neurons.
>
>Conversely, a creature with a supercooled brain, like one that has
liquid
>nitrogen for cerebral fluid, could have superconducting synapses. They
>could think so fast it staggers the imagination!
>
>Anyway, I hope this provides some interesting ideas to think about,
>
>-Brian
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