No Stupid Questions
No such thing. Ask away!
!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.
The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:
Rules (interactive)
Rule 1- All posts must be legitimate questions. All post titles must include a question.
All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.
Rule 2- Your question subject cannot be illegal or NSFW material.
Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.
Rule 3- Do not seek mental, medical and professional help here.
Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.
Rule 4- No self promotion or upvote-farming of any kind.
That's it.
Rule 5- No baiting or sealioning or promoting an agenda.
Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.
Rule 6- Regarding META posts and joke questions.
Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.
On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.
If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.
Rule 7- You can't intentionally annoy, mock, or harass other members.
If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.
Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.
Rule 8- All comments should try to stay relevant to their parent content.
Rule 9- Reposts from other platforms are not allowed.
Let everyone have their own content.
Rule 10- Majority of bots aren't allowed to participate here.
Credits
Our breathtaking icon was bestowed upon us by @Cevilia!
The greatest banner of all time: by @TheOneWithTheHair!
view the rest of the comments
wouldn’t it be noticed immediately since space satellites would be out of sync, and GPS locations wouldnt be accurate etc?
presuming worldwide = earth
Yeah but they said all clocks so all the sats would still be in sync just like we had a leep second it would just be a leep minute.
The GPS almanac is a table of the exact orbital information of every satellite. Every receiver needs a copy of the almanac to understand where the satellites are supposed to be, so that it can determine where it is in relation to those satellites.
When their clocks all shift one minute simultaneously, the almanac isn't updated. Every satellite is 60 seconds away from where the almanac says it should be.
If the satellites were geostationary, receivers would still work, they'd just be off by 0.25 degrees of longitude as the entire constellation would be shifted the same amount. But the GPS constellation consists of satellites in a variety of inclined orbits. Nothing is where the almanac thinks it is, and nothing is where it is supposed to be in relation to anything else.
Parent comment is correct: GPS will immediately fail, and remain down until an updated almanac is published and distributed.
Interesting so I guess they update the almanac when a leep second is preformed
No, the almanac accounts for the leap second since it was created. It doesn't need to be updated.
The GPS 'time zone' does not account for leap seconds at all and is currently 18 seconds ahead of UTC. The GPS navigation messages from the satellites do however include the current offset.
Satellites aren’t world wide, they’re world orbiting.
And even if they were included, we have clocks on Mars now that would be out of sync.
Came here to say this. Hopefully the systems in place are resilient enough to handle a leap minute (especially since they already exist), but it would definitely cause some instant issues.
The average person probably wouldn’t notice, but anyone working with time sensitive equipment would.
Do leap minutes really exist? I've never heard of that before? I don't think we've ever had 60 leap seconds since the inception of the idea.
Its ambiguous to see how different people interpret it. My thought when I typed the question was that anything that is closer to Earth than the moon is considered part of "World Wide", but I can see how some people would interpret satelites are not part of "World Wide".
No what they mean is that GPS uses timestamps to calculate position so messing with time would mess with position. GPS is so precise at measuring time we need to account for time dilation due to Einstein and satellites traveling at speed.
So do we need to take time dilation into account?
1 minute forward in all reference frames? Is there an 81pSec difference in the time jump?
Yeah we need to account for time dilation but since op doesn't specify this it would break GPS.
That wacky Einstein, still dilating time from beyond the grave.