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Re: ...intriguing theory on WHAT REALLY KILLED THE DINOSAURS
I got to admit; the timing of it (Earth/Moon separation) is novel, at least to
me. In fact, I find portions of the theory highly entertaining.
As it is now well-known what 'light gravity' does to bone structure, I would
think a quick look at the bones of say, a cow-sized L. Cret. something-or-other
might tell you if the gravitational field was significantly different than
present. Not to mention trees. I think my spreading oaks might look a trifle
different, in macro or micro, in "near-zero" gravity. And not to mention the
evidence in said materials left by the proposed sudden field change (occurring
at the 'liberation' of the moon). Not any of that it is really necessary ...
Fun, fun, fun ... gee, no tides pre-k/t! And the Coriolis forces on
paleo-weather systems! Wow.
----- Original Message ----
From: David Marjanovic <email@example.com>
To: DML <firstname.lastname@example.org>
Sent: Friday, November 2, 2007 8:12:35 PM
Subject: Re: ...intriguing theory on WHAT REALLY KILLED THE DINOSAURS
Forget about it, the guy doesn't know what he's talking about (...and
worse, he clearly doesn't know _that_ he doesn't know what he's talking
about). For example, "the shift from gymnosperms to angiosperms"
million years earlier than he claims. Also, cyclostratigraphy shows
Milankovic cycles (of the tilting of the Earth's axis and other stuff)
started much longer ago... I know of terminal Permian evidence for
> Sorry but I have just got in from the pub, but surely the KT story is
> continental drift, massive volcanism and the KT impact.
What continental drift? Nothing spectacular at all happened at that
birth or death of an ocean, no first or last contact between
> There is no silver bullet.
No, but there is _the bomb_.
A few equations for you:
volume of a sphere = (4*pi*r^3)/3
r = 5 to 6 km
mass = volume x density
average density of rock... look it up
kinetic energy = (m*v^2)/2 -- that's right, half the mass times _the
velocity of something that drops from the sky... thousands of km per
Do the math, and then remember all that kinetic energy turns to heat