Pete wrote:
"Some will be blown up and some will be blown down."
I believe this is a common misconception for many in the meteorite
community and common thought. I don't think anything is "blowing up".
Simply fragmenting. Each part of the original whole maintains its
portion of momentum upon fragmentation. The direction of the momentum
is along the angle of entry. There is no blowing up in that sense of a
bomb which propells fragments in all directions as there is no internal
source of energy (like in a chemical explosive). The only dispersion
will be caused by different frictional (aerodynamic effects) deviations
like sticking your hand out the car window and using yourwrist as an
aileron. If your fingers fell off your hand, there would be no
explosion, and nothing being blown forward either :-)
Best health, Doug
sorry - now caught up with the good replies on this topic, we just got
electricity internet, etc. back after the nuclear winter our city
experienced yesterday where we couldn't see the Sun on a clear day
-----Original Message-----
From: Pete Shugar <[EMAIL PROTECTED]>
To: Meteorite-list@meteoritecentral.com
Sent: Wed, 19 Mar 2008 10:45 am
Subject: [meteorite-list] Further thoughts
Consider the Fireball.
When the (soon to be) meteorite explodes into a fireball, the pieces
are blown in every direction, Those blown in the direction
that the meteor came from which should give them a negative speed and
as such will start to drop first. Those in the direction of travel give
the furtherest reach from the above mentioned pieces. This will define
the outside distance of the strewnfield.
Some will be blown up and some will be blown down. I would suspect that
those that are blown downward would be the first to reach ground as
these will be accelarated and those that are blown upward must go up
before they can come down, so they should be the last to reach the
ground.
This means that the middle of the strewnfield is the first to be
populated as well as the last to be populated. The two ends fill up in
between the first and last parts of the fall.
Anyone care to check?
I don't think I missed anything, but I'm not an EXPERT, just using
deductive reasoning.
Pete
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