Tuesday, October 27, 2009

Submarine neutrino communication‏


Here's some interesting reading for you submarine buffs out there:


This Physicist published a paper on how to use neutrinos as a possible effective communication method for submarines underwater to receive messages only. As you know only extra low frequency (ELF-VLF) radio waves can be used for communications by submarines underwater as the higher frequencies get severely attenuated and because of the very low frequency, only very low bit rates can be used. Neutrinos are particles that are created in certain nuclear reactions and radioactive decays, they travel close to the speed of light and interact very rarely with normal matter. Although we don't realise it, right now your body is emitting roughly 400 neutrinos per second due to the naturally occuring radioactive isotopes of Calcium and Potassium in your bones. You are basically neutrino transmitters.

Attached photos:
- Someone who named this barge "Nebula" must be into Astronomy ;-)
- This catamaran had a Compass Adjuster onboard the other morning, heard them call up Harbour Control on Ch13 when they were using transits in the channel. I better finish the course ASAP!

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