311 karma · joined June 18, 2011
Of course one could imagine other scenarios where GPS might become inaccurate or unavailable on a larger scale, such as an attack on the satellites themselves.
[1] https://safety4sea.com/us-marad-gps-interference-incidents-r...
[2] https://www.traficom.fi/en/news/unusual-amount-reports-about...
(my guess is that _moof is a navigator with experience in the eastern med sea)
That being said, the calculation that a cruise ship generating its own power emits as much SO2 as 34400 idling trucks seems to hold up.
Absolutely! I recently bought a simple item, a roll of wiring loom tape. It was on Amazon and had a few reviews that stated that the received tape was old and didn't stick very well anymore.
Same item on eBay for cheaper has the seller specifically mentioning that they only sell fresh tape from the running production, not old stock. Even better, the seller specialized in these (and other) tapes.
It seems that eBay has just cultivated a much higher quality base of vendors. Many of them seem specialized.
And where does anyone do that? As far as I'm concerned your post is just concern trolling.
Many occurrences before October 15th. "Ok boomer" has been a phrase in internet culture for a while now.
1) install Keybase: https://keybase.io/download
2) add your device
3) in the app, go to devices (second to last item in the nav) and add two paper keys
4) click on your avatar (top of nav) and select "View profile"
5) click "Prove your [GitHub, Hackernews]" and follow the steps (HN might take a while to update, took about 2 mins for me)
6) now you should be able to join the drop
For the purpose of astro nav: NP303 is calculated for an epoch of 5 years (and it's only 3 books). Until its end of life, it has to be "updated" in the sense that corrections need to be applied as they are released.
I don't think the point of the books has ever been disaster proofing. For the most part, books were good enough for the job before computers and still are. They're cheap, come from trusted sources (and it's easy to verify that they're legitimate), and they're easy to correct should they have errata.
Windows PCs and excel spreadsheets are used in navigation all the time. Nobody's forcing navigators to use books. If they do, though, they probably have a good reason for it.
"Rest hours: rest hours should be implemented in national legislation. The maximum hours of work in that legislation should not exceed 14 hours in any 24-hour period and 72 hours in any seven-day period, or: at least ten hours of rest in any 24-hour period and 77 hours (rest) in any seven-day period. Furthermore, the daily hours of rest may not be divided into more than two periods and, at least six hours of rest should be given consecutively in one of those two periods."
7*24-77 = 91