Thursday, July 31, 2008
how much can one borrow in space?
Hi,
I am thinking about the Heisenberg uncertainty principle, which can be interpreted as one can borrow a finite amount of energy for a finite amount of time. dt times dE must be less than ih, or something like that.
Now there are rather a lot of things left out of this description, such as
- how often can I borrow it?
- does it matter if all my neighbours have just borrowed stuff?
- how close is a neighbour?
I think this is something like how bright is a blackhole?
Why have we not heard about this sort of experiment, other than just confirming that the Hawking radiation exists, rather than quantification of its strength.
Maybe I should read a bit more on this.
MartinW
I am thinking about the Heisenberg uncertainty principle, which can be interpreted as one can borrow a finite amount of energy for a finite amount of time. dt times dE must be less than ih, or something like that.
Now there are rather a lot of things left out of this description, such as
- how often can I borrow it?
- does it matter if all my neighbours have just borrowed stuff?
- how close is a neighbour?
I think this is something like how bright is a blackhole?
Why have we not heard about this sort of experiment, other than just confirming that the Hawking radiation exists, rather than quantification of its strength.
Maybe I should read a bit more on this.
MartinW
