Comment Comment by throw0101a Training for this was discontinued, but brought back in 2016:* https://www.npr.org/2016/02/22/467210492/u-s-navy-brings-bac...Now if only the US (and others) would get their act together and build out a backup system to GNSS. China, for example, has built out an eLoran system:* https://rntfnd.org/2024/10/03/china-completes-national-elora...An old USAF video explaining how the theory works (it assumes a geocentric worldview: the Earth is the centre of the universe (but it's not flat :)):* https://www.youtube.com/watch?v=UV1V9-nnaAs parent throw0101a 1 year ago
* https://www.npr.org/2016/02/22/467210492/u-s-navy-brings-bac...
Now if only the US (and others) would get their act together and build out a backup system to GNSS. China, for example, has built out an eLoran system:
* https://rntfnd.org/2024/10/03/china-completes-national-elora...
An old USAF video explaining how the theory works (it assumes a geocentric worldview: the Earth is the centre of the universe (but it's not flat :)):
* https://www.youtube.com/watch?v=UV1V9-nnaAs