Re: Possible evidence for Stone Age (Clovis) Cosmic Catastrophe?

In sci.archaeology message
news:Xns97064FE6E51D4trolleyfanearthlinkn@xxxxxxxxxxxxxxx by David
Johnson <trolleyfan_spamfree@xxxxxxxxxxxxx> . . . :

> nospam@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx wrote in
> news:8ajrm15v9u5gnmvmbasdnup9p4b10l256m@xxxxxxx:
>
>> On the other hand, if you count sun-grazers, where a blob of
>> the sun is ejected on an orbit that goes around it and returns
>> to the surface of the sun on the way back, as a comet, these
>> will frequently have zero eccentricity because the sun is
>> rotating and it is easier to launch from the equator in the
>> direction of spin because on earth it gives you a free launch
>> of a bonus 1000 mph of speed even before you light the blue
>> touch paper. On the sun, its rotation gives you a launch
>> velocity of 2 kilometers per second extra than at the poles. So
>> it is quite normal for stuff to be ejected from the solar
>> equator in the direction of spin and on the ecliptic.
>>
>
> Ummm, since when are _any_ objects* "ejected" (apart from the
> occasional solar flare - which is composed of high-energy
> plasma) from the Sun to do an orbit of the solar system and
> return?

I saw that as well as his false recollection of what Eric said.
Its as simple as this, take and object 0.2 light years from earth,
change its direction from orbiting the sun to moving toward the sun,
3000 years later is smashes into the earth at 43.8 km/second. There
is no special hee-bee jeebies require, if you are willing to wait 300
million years you can stop a volkswagon and it will fall into the
earth.

He also said:
>> I agree, but the debate is all about comets because Eric (as I
>> recall) was puzzled about how a supernova can eject comets -
>> which they can't and it is only journalists getting the wrong
>> end of a stick that brings the subject up.

But this appears to be what Eric was saying.

"
The idea of comets from the shell of a supernova explosion is a new
one for me.
"
"
They can also contain multi-kiloton boulders. The tail is only low
density volatiles boiled out by the heat of the sun and blown away by
light-pressure. That's why I'm expressing surprise at the thought of
entire comets being propelled outwards (as solid chunks) at a
substantial fraction of the speed of light.
"

You're the one claiming that a Supernova and comet striking the earth
can only be coincidental. I made the point that in the fringes of our
solar system that Nova matter could impact and cause comets to come
falling in. I even gave you an example, an object well beyond plutos
orbit, traveling at 100 kph orbit gets hit and comes to a complete
halt, then posed the question what is will be its velocity as it
approached, say, the moons orbital radius of the earth.

A supernova could easily produce enough energy to alter the orbit of
comets given the very low orbital velocities of some of them. The
critical fault of the article is that a shower of micrometeors killed
the mammoths off, from whatever the source, is a bogus idea.

There is the belief that radioactivity is a major killer and health
threat. There is a little village on the southern end of the caspian
sea which has greater than 20 times the background radiation do to
geological sources of radioactivity. One might expect the cancer rate
to be higher, but it is not, biopsies from volunteers from the
village were taken and compared with those in adjacent 'non-
radioactive' villages. It was found the certain DNA damage repair
enzymes increased activity in response to the increased load of
radioactivity.

Maybe the laws of Physics over there in Great Britian differ from
those here in the United States.

.

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