Originally posted by twhitehead
I doubt that it will ever be viable as a replacement technology. Probably only for niche purposes.
To use it for transmission without the thousands of tons, one would need to produce a lot more neutrinos. Then one would have to aim the accurately at the target, or there would be a problem with noise. We don't have the luxury of different wavelengths as w ...[text shortened]... ng before neutrino technology becomes usable and there will be no need to start replacing them.
Well, the wavelength issue is valid but it would not lead to noise it would lead to limited bandwidth, more of an issue of how many neutrino's can you detect in one second kind of thing. As it stands I don't think we can aim or concentrate them very well, even the guys at Cern are making a neutrino beam that is probably at least 90 degrees wide, you know, where they did the experiment that supposedly saw neutrino's going faster than the speed of light? First they generate a particle beam that hits some kind of target and that produces a flash of neutrino's, not sure how many times the beam can hit the target before it disintegrates but that generates a nice beam of neutrinos alright. It's just that 50,000 tons of equipment needed that kills you.
But that is the 21st century, maybe in century 22 things will be different.
One thing, if you had a reliable neutrino communications going say, through the earth from one side to the other, through 8000 miles of solid rock, the speed of transmission would be significantly faster, since at something very close to c, you are going through the diameter of Earth but radio waves are going to have to go at least through the circumference and then some counting satellite bounces or radio wave bounces off the ionosphere so messages would definitely get there faster than the speed of light around the Earth, some three times faster in fact. Don't know if that would ever even be important but there it is.