(meteorobs) Meteorites on The Ground! (Was: To Dirk)

[Meteorites USA]

Quote: ""Three quarters of the rock, which was about the size of a small 
pork pie, was burnt off in the experiment."

So only 75% of a body is ablated during atmospheric entry? This 
disproves the 90% ablation rate hypothesis and actually proves my point.

And this only with one simple experiment. (if this data is accurate of 
course) It is still inconclusive evidence though that 99% of all 
meteoroid bodies ablate away to nothing. In fact it's logical evidence 
contrary to currently accepted scientific hypotheses that say the 
ablation rates are so very high, because we have no way of knowing the 
size of 99.9% of the bodies BEFORE entry into the atmosphere. In fact 
there is only ONE case where we knew the size of a *natural* body before 
it entered our atmosphere and impacted Earth, and that's the very well 
known, and perhaps famous, Asteroid 2008 TC3.

Therefore the conclusion becomes one that incorrectly supposes and 
assumes that since the ablation rates are so high, that an equally high 
percentage of meteoroids burn up completely within the atmosphere. It's 
just a jump in logic that doesn't work. It's logically incorrect based 
on the current data.

I'm curious how this 75% number was determined. Was every piece that 
remained of the body, that survived atmospheric entry recovered? (in 
other words, what were the methods?) Because recovery rates will vary 
based on a number of factors including but not limited to, terrain, 
color, contrast of the specimens with local soil color, and the eyesight 
of the individual(s) recovering the specimens.

Further... How many specimens of any meteoroid bodies that impact Earth 
are actually recovered? What's that percentage? You would have to 
recover every single piece that survived entry to determine an accurate 
estimate of others and that still doesn't take into account the variable 
composition factor. And to do that you would have to have a perfectly 
controlled environment. This is a good example of a control, for 1 type 
of stone. And it answers a lot of questions. But like any good 
experiment/answer, it brings with it more questions.

How big is a pork pie?

Regards,
Eric


On 3/25/2011 3:51 PM, Steven Kolins wrote:
> On Mar 25, 2011, at 5:20 PM, Roberto G. wrote:
>
>    
>> http://news.bbc.co.uk/2/hi/uk_news/scotland/highlands_and_islands/7056686.stm
>>      
> This is the prerelease for the results:
>
> <http://www.abdn.ac.uk/mediareleases/release.php?id=1523>
>
> =    -   -  - - -  -   -    =
> Steven Kolins
> mailto:smkolins at mac.com
> http://homepage.mac.com/smkolins/
> http://smk99.blogspot.com/
> Possess a pure, kindly and radiant heart!
>
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