3 ms·
The relevant RFC is from (April 1st) 1991 - Memo from the Consortium for Slow Commotion Research (CSCR) https://www.rfc-editor.org/rfc/rfc1217.html https://www
by shagie 2y ago
The relevant RFC is from (April 1st) 1991 - Memo from the Consortium for Slow Commotion Research (CSCR) https://www.rfc-editor.org/rfc/rfc1217.html https://www.rfc-editor.org/rfc/rfc1217.html
Section 4 deals with Jam-Resistant Underwater Communication
The ULS system proposed in (2) above has the weakness that it is
readily jammed by simple depth charge explosions or other sources of
acoustic noise (e.g., Analog Equipment Corporation DUCK-TALK voice
synthesizers linked with 3,000 AMP amplifiers). An alternative is to
make use of the ultimate in jam resistance: neutrino transmission.
For all practical purposes, almost nothing (including several light-
years of lead) will stop a neutrino. There is, however, a slight
cross-section which can be exploited provided that a cubic mile of
sea water is available for observing occasional neutrino-chlorine
interactions which produce a detectable photon burst. Thus, we have
the basis for a highly effective, extremely low speed communication
system for communicating with submarines.
- JumpCrisscross 2y ago> make use of the ultimate in jam resistance: neutrino transmission. For all practical purposes, almost nothing (including several light-years of lead) will stop a neutrino Signals aren't jammed by being blocked but overpowered. If you want to disrupt someone's neutrino comms, you don't start building lead walls. You flood their volume with neutrino noise. (I don't know how feasible that is to continuously do over a large volume.)
- c_o_n_v_e_x 2y agoTo jam, presumably you need to know precisely where the receivers are.
- JumpCrisscross 2y ago> To jam, presumably you need to know precisely where the receivers are You need to know where you don't want functioning receivers.
- CoastalCoder 2y agoIANAP (I'm not a physicist)... Can a neutrino detector estimate the direction from which a neutrino arrived? I'm wondering if that could help discriminate signal vs. jamming.
- PaulHoule 2y agoSome neutrino detectors can estimate direction, see https://en.wikipedia.org/wiki/IceCube_Neutrino_Observatory https://en.wikipedia.org/wiki/IceCube_Neutrino_Observatory which should be able to spot a supernova in our galaxy easily.