Quote:
Originally Posted by dataweaver
Using a particle accelerator as your neutrino source potentially eliminates that concern, the same way a laser can be brighter than sunlight.
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The energy consumption of your neutrino source may become impractically large. I did the sums recently for detecting nuclear submarines by their neutrino emissions. 50MW of decay heat in a reactor raises the neutrino flux at 1000 metres by about 1% of the solar flux - which is not small, it's just that the probability of interaction is really low.
And neutrinos obey the inverse-square law. I think a 400lb device for two-way communication at 100,000 miles still has its ^.