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Old 25-07-2019, 03:27 AM
NoLifeLine
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How the Meteorite got its shape

Hi all, just read an interesting article about meteorite formation by the British science journalist Rob Lea. I had never realised that formed cones moving though the atmosphere. I thought that they would tumble and keep a pretty spherical shape.


Heres a snippet and a link to the full article



Meteoroids coming from outer space come in all shapes and sizes, but those which land on earth as meteorites, are found to be carved into a typical conical shape. The reason behind this has been something of a mystery.


To explore the forces that produce cone-shaped meteorites, researchers replicated meteoroids travelling through outer space: clay objects, attached to a rod, served as ‘mock meteorites’ that erode while moving through water.


“While most meteorites are randomly shaped ‘blobs,’ surprisingly many — some say about 25%— are ‘oriented meteorites,’ and complete samples of these look almost like perfect cones.”
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Old 25-07-2019, 04:40 AM
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Ukastronomer (Jeremy)
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why would they tumble any more than the space shuttle or the Command module of Apollo or Soyuz

The one I have on the left weighs about .75 kilo,
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Last edited by Ukastronomer; 25-07-2019 at 04:53 AM.
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Old 25-07-2019, 08:00 AM
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xelasnave
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Thanks for your post NLL I found it most interesting.
Nice objects Jeremy thank you for sharing.
Why would they tumble?
Certainly that is my expectation although thinking more about it I can rationalise why they need not do so...
As to expectations with the various space craft my expectation as to why they would not tumble is because of the element of human control.
Alex
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