--- On Wed, 2/20/13, Daniel Rocha <danieldi...@gmail.com> wrote:
From: Daniel Rocha <danieldi...@gmail.com> Subject: Re: [Vo]:Russian meteor causes blast; hundreds injured To: "John Milstone" <vortex-l@eskimo.com> Date: Wednesday, February 20, 2013, 12:15 PM 1m3 of an asteroid weights 7tons, usually. If its radius is 7.5m, then we have a volume of 4/3*pi*(7.5) ~ 1800m^3. The total weight is around 12thousand tons. Not much, really. 2013/2/20 ChemE Stewart <cheme...@gmail.com> 10,000 tons is A LOT OF STUFF On Wed, Feb 20, 2013 at 12:06 PM, ChemE Stewart <cheme...@gmail.com> wrote: Where is it? On Wednesday, February 20, 2013, Daniel Rocha wrote: There is nothing unusual about that asteroid. Calculate the kinetic energy of a sphere with 15m of diameter at 30km/s. Consider the typical density of 7g/cm^3. The kinetic energy released is around 500ktons of tnt and its weight around 10ktons. 2013/2/20 ChemE Stewart <cheme...@gmail.com> Close, probably dark matter nuclei.... :) I think I read 50m diameter but I have not done the math. I want to see if they can find what made that perfectly round 20'-30' diameter hole in the ice. So far nada... Should be worth a lot if it exists. On Wed, Feb 20, 2013 at 10:49 AM, Terry Blanton <hohlr...@gmail.com> wrote: On Wed, Feb 20, 2013 at 8:49 AM, ChemE Stewart <cheme...@gmail.com> wrote: > You, like NASA, are off by at least a factor of 1000... > > http://www.foxnews.com/science/2013/02/19/russian-meteorite-1000-times-bigger-than-originally-thought/ That article makes no sense at all. Maybe they mean the energy released was bigger; but, they still say it was only 15 m in diameter. Oh, I see, the density was 1000 times greater. Well, heck, we must have had a piece of a neutron star hit us. <sigh> duh, dark matter nuclei??? I wouldnt take theorists too seriously when it comes to reality, so I'm hoping youre spoofing us. -- Daniel Rocha - rjdanieldi...@gmail.com -- Daniel Rocha - rjdanieldi...@gmail.com
