[ExI] Large Hadron Collider

Damien Broderick thespike at satx.rr.com
Fri Feb 1 23:24:02 UTC 2008

At 10:36 PM 2/1/2008 +0000, ben wrote:

>And wouldn't it take thousands of years, or longer, to start making any
>appreciable difference if it did fall to the centre of the earth and
>start gobbling it up?

Apparently. This has been discussed a bit on rec.arts.sf.science; 
e.g. some random grabs:

<someone drops a black hole
onto Earth. It's a billion tonnes, very hot and tiny.
What happens? The cross section is tiny and material
near it will be heated up to a great degree: could it
suck up significant amounts of material at all? >

And that's asteroid mass, not LHC morsel.

<Plus there's almost no way to keep the hole charged enough to hold
onto it with the electromagnet that J.Forward uses in the story.
If it had that much charge, the immense potential near the horizon
would pull in opposite charges quickly, neutralizing the hole. >


Damien Broderick

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