Erik Max Francis wrote:
>> Ronnie Sahlberg wrote:
>> > Who needs fancy stuff like that. FTL communications are much easier:
> > look at the heat-dissipation equations.
> > Heat travels infinitely fast, that's much much faster than light.
> > Using heat-dissipation for communications would allow intergalactic
> > communication systems with close to zero RTT.
>> Uh, you're obviously not using the right equations.
Well actually I am, but the equation is faulty. It is only a good
approximative model
of the physic characteristics of heat, not an exact description of.
The easiest example is fot the heat-dissipation equation
in one dimension:
Assume an infinite long string with an equal temperature at every point
of the string.
Apply heatpulse at point p at time t=0 of said string.
Examine function describing heat distribution along the string.
Examine value of this function at t=epsilon (epsilon approaching 0)
especially "interesting" are the values of this function infinitely far
from
point p. It is small but non-zero.
ergo: heat travels at infinite speed (according to famous
partial-diff-equation).
br ronnie sahlberg
