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Instant Messaging With Neutrinos
An anonymous reader writes "A group of scientists has for the first time sent a message using a beam of neutrinos – nearly massless particles that travel at almost the speed of light. The message was sent through 240 meters of stone and said simply, 'Neutrino.' From the article: 'Many have theorized about the possible uses of neutrinos in communication because of one particularly valuable property: they can penetrate almost anything they encounter. If this technology could be applied to submarines, for instance, then they could conceivably communicate over long distances through water, which is difficult, if not impossible, with present technology. And if we wanted to communicate with something in outer space that was on the far side of a moon or a planet, our message could travel straight through without impediment.'"
If you can do that, well, that just means you can now detect a sub's nuclear reactor super-easy. Don't they give off neutrinos?
I'm not sure, but it does illustrate the challenges SETI faces.
I doubt we'd use them in general communication applications anyway, for the simple reason that what we have right now isn't broken, and thus doesn't need to be fixed.
If it was actually feasible, it would be very useful for intercontinental telecommunication. Current methods are both expensive and have high latencies (either satellite or laying fiber across ocean floors).
I'm not sure if "benefit" is the right word... Being able to detect neutrinos (and subsequently the sub) might be the end for nuclear powered submarines.
Compared to reconstructing the our communications network using ephemeral particles that can barely be detected, that require billion-dollar particle accelerators to create, and are easily drowned out by the deluge of neutrinos ejected by the Sun, yes, cables are stupid, as in stupidly easy.
more like underwater city and moon colony
... or mid-size financial institution, trying to achieve slightly more efficient arbitrage by communicating market data from one side of the earth to the other a few milliseconds faster by going through instead of around.
Just suggest it to them and they'll have it in mass production next month and be working on compact, cost-reduced versions in a year.