quarta-feira, janeiro 03, 2007
Just six numbers
"Up to a point, we can probe ever-finer detail by using more and more energetic quanta, associated with ever-shorter wavelengths.
But there is a limit.
This limit arises when the requisite quanta are such extreme concentrations of energy that they collapse into black holes. This happens at the 'Planck length', which is about 10^19 times smaller than a proton [...] Light takes about 10^-43 seconds to traverse this distance, and this 'Planck time' is the shortest time interval that can ever be measured.
So even space and time are subject to quantum effects."
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But there is a limit.
This limit arises when the requisite quanta are such extreme concentrations of energy that they collapse into black holes. This happens at the 'Planck length', which is about 10^19 times smaller than a proton [...] Light takes about 10^-43 seconds to traverse this distance, and this 'Planck time' is the shortest time interval that can ever be measured.
So even space and time are subject to quantum effects."
