|MadSci Network: Earth Sciences|
I have read the archives before submitting this, the archives concentrate on the mass of meteors adding to the mass of the Earth. I am wondering about the Earth's rotation slowing down. I was wondering if anyone has been able to determine if gravity was the same on Earth before and after any giant meteor impact that could have wiped out the dinosaurs 65 million years ago? The reason I'm wondering is that it would obviously be easier for dinosaurs to grow to the massive sizes they were if gravity was less back then. It would also explain why no land animal has grown to such proportions since they were made extinct, particularly the large flying dinosaurs. Just how big would a meteor hitting the Earth have to be, and where on the Earth would it have to hit to slow the Earth enough to make a difference to gravity? Many thanks, Keith
Re: Is gravity the same now as it was when dinosaurs were around?
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