"newshound" wrote in message
eb.com...
On 19/02/2013 13:55, David Staup wrote:
"valtih1978" wrote in message
...

every bit of the mass eventually hits the earth as nothing is "burned"
so
much as ablaited


I mean that small particles are easy to be stopped by atmosphere and
possess no threat. Right?

obviously you have never heard of cosmic rays which are small particles
that
strike the atmosphere at close to the speed of light...much potential
damage
there.

Fascinating factoid on The Life Scientific the other day, claiming the
energy in fastest heavy nuclei was the same as an Andy Murray serve.


Yea, I've heard or read similar analogies. Tis amazing how much momentum
nature can pack into a sub-atomic particle.