Sunday, April 25, 2010

light, Bang, anthro

Speed of light 186 thousand miles a second.

So what ever light is its frozen in time, at that speed,
according to Einstein time stops.

What is light using for fuel?
Doesn't light violate the laws of conservation of energy?

How far can light go? For how long?

End of thought...

Could dark matter have been around before the Big Bang?

Some branch of astronomy proposes that at the time
the universe is brought into existence it was infinitely dense
and hot. And before that was nothing.

It feels a little like the shrapnel looking back on the detonation
of its bomb as stating it was infinitely dense and hot and before
that nothing.

End of thought

Such scenes are speculative, but Hawking uses them to lead on to a serious point: that a few life forms could be intelligent and pose a threat. Hawking believes that contact with such a species could be devastating for humanity.

He suggests that aliens might simply raid Earth for its resources and then move on: “We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet. I imagine they might exist in massive ships, having used up all the resources from their home planet. Such advanced aliens would perhaps become nomads, looking to conquer and colonise whatever planets they can reach.”


He is on good anthropological ground here.
The cases of an advanced civilization coming into contact
with a less advanced civilization has never bode well
for the less advanced civilization, some times its lead
to genocide.



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