[meteorite-list] meteoroid question

[Michael Murray]

  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

>

> ______________________________________________

> http://www.meteoritecentral.com

> Meteorite-list mailing list

> Meteorite-list at meteoritecentral.com

> http://six.pairlist.net/mailman/listinfo/meteorite-list