[meteorite-list] meteoroid question
Michael Murray
mmurray at montrose.net
Sun Oct 4 23:31:50 EDT 2009
I'm certainly not any authority or expert but since you were asking
for a ballpark, I'll toss this answer in on the second question...
Judging from the pieces I have found using my magnets, I believe the
minimum size of survivors graduates up from the barely visible and
possibly the microscopic.
Mike in CO
On Oct 4, 2009, at 8:51 PM, lebofsky at lpl.arizona.edu wrote:
> Hi all:
>
> I am involved with a teacher professional development workshop this
> week
> and the teachers give us questions that they hope we can answer for
> them.
> I am fine with most of them (such is Pluto a planet?), but I figured
> that,
> before I give them a partially correct answer, I would ask the
> experts out
> there for their responses:
>
> What is the rate at which things burn up when they enter Earth’s
> atmosphere?
>
> About how much material is burned up (mass per unit time)?
>
> Along that same idea, for a "typical" chondritic meteoroid, what is
> the
> minimum size that you might expect to make it through the atmosphere
> and
> land as a meteorite? Ballpark is fine since, clearly there are many
> factors involved (initial velocity, angle of entry, material strength
> etc.).
>
> Thanks in advance.
>
> Larry
>
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