AshD Posted October 19, 2014 Posted October 19, 2014 What if the earth stops moving? Nothing would happen. may be the entire universe would be moving around another "thing". We see the value/length of a second as a day have 86,400 of same in it. but what will happen on a scenario when a change of speed of the earth rotation process. Nothing would happen but the measurements of time also should change accordingly. TIME... It may not just moving but we used to think it is because of time. Some times there might no such thing as gravity! The thought of "Gravity" occurs when a particle moves with time towards something, the relativity to other particles and other particles how sees it. Everything depends on time. light is another example for speed. And there should be thousands of other things out there which have various varieties. traveling speed is only one quality of the light we see.. but it may not be the fastest and visible. More questions to think... Even more answers to find!!! YET
Robittybob1 Posted October 19, 2014 Posted October 19, 2014 What if the earth stops moving? Nothing would happen. may be the entire universe would be moving around another "thing". We see the value/length of a second as a day have 86,400 of same in it. but what will happen on a scenario when a change of speed of the earth rotation process. Nothing would happen but the measurements of time also should change accordingly. TIME... It may not just moving but we used to think it is because of time. Some times there might no such thing as gravity! The thought of "Gravity" occurs when a particle moves with time towards something, the relativity to other particles and other particles how sees it. Everything depends on time. light is another example for speed. And there should be thousands of other things out there which have various varieties. traveling speed is only one quality of the light we see.. but it may not be the fastest and visible. More questions to think... Even more answers to find!!! YET That seemed to read more like poetry rather than physics.
Phi for All Posted October 19, 2014 Posted October 19, 2014 ! Moderator Note Speculative concepts shouldn't be placed in mainstream fora. We have lots of students who rely on the Relativity section being a place for the best current explanations of Relativity. Thread moved to Philosophy.
Janus Posted October 19, 2014 Posted October 19, 2014 What if the earth stops moving? Nothing would happen. may be the entire universe would be moving around another "thing". We see the value/length of a second as a day have 86,400 of same in it. but what will happen on a scenario when a change of speed of the earth rotation process. Nothing would happen but the measurements of time also should change accordingly. While the sec was originally based on the rotation of the Earth( actually a combination of the rotation of the Earth and the Earth's orbit around the Sun, as it was based on the Solar day), that definition has been abandoned for the very reason that the Earth's rotation does change( as does the Earth's orbit). Even then it was based on the mean or average solar day, since due to the eccentricity of the Earth's orbit, the length of the Solar day varies over the course of the year.) The Solar day definition was used until 1960 and then for about 7 years they based it on the tropical year(equinox to equinox)of the year 1900. (In other words, they used this year as the fixed standard for the second, meaning the length of the second remained unchanged even while the length of the Solar day or tropical year changed) After that, and since then, the definition of the second was detached from an astronomical standard completely and based on a physical constant that does not change.(the frequency of the radiation of a particular transition of Caesium 133) Now because of this, the length of the mean solar day and 86,400 sec (24 hrs) are no longer exactly the same. The difference is small, but accumulates over time. If this were allowed to continue, eventually our clocks(based on the new standard sec) and the position of the Sun, would drift out of sync. To prevent this, every so often a "leap second" is added to the "official" time. Since 1972, 25 of these leap seconds have been used.(Though most people wouldn't even notice the drift even if this wasn't done, at this rate it would take ~1000 yrs before local noon by the clock and the Sun would be would be off by as much as 10 min.) The upshot is that changes in the rotation of the Earth would have no effect on our measurement of time since we no longer use the Earth's rotation for the definition of a second.
Moontanman Posted October 19, 2014 Posted October 19, 2014 What if the earth stops moving? Nothing would happen. may be the entire universe would be moving around another "thing". We see the value/length of a second as a day have 86,400 of same in it. but what will happen on a scenario when a change of speed of the earth rotation process. Nothing would happen but the measurements of time also should change accordingly. TIME... It may not just moving but we used to think it is because of time. Some times there might no such thing as gravity! The thought of "Gravity" occurs when a particle moves with time towards something, the relativity to other particles and other particles how sees it. Everything depends on time. light is another example for speed. And there should be thousands of other things out there which have various varieties. traveling speed is only one quality of the light we see.. but it may not be the fastest and visible. More questions to think... Even more answers to find!!! YET If the Earth stopped moving everyone on the trailing edge of the earth would fly off into space, everyone on the leading edge would make some respectable craters filled with something resembling chunky salsa...
Robittybob1 Posted October 19, 2014 Posted October 19, 2014 (edited) If the Earth stopped moving everyone on the trailing edge of the earth would fly off into space, everyone on the leading edge would make some respectable craters filled with something resembling chunky salsa... That would only happen to the Flat Earthers. For those "on the trailing edge" at what angle would they fly off into space? Edited October 19, 2014 by Robittybob1
Eise Posted November 3, 2014 Posted November 3, 2014 Why was this moved to philosophy? Philosophy is an academic discipline, and I can assure you, nothing of AshD's post has anything to do with it. This belongs in speculations. Or worse... 1
Strange Posted November 3, 2014 Posted November 3, 2014 What if the earth stops moving? It would fall into the Sun! may be the entire universe would be moving around another "thing". You suggest that the universe is moving round the Earth. It isn't. We see the value/length of a second as a day have 86,400 of same in it. but what will happen on a scenario when a change of speed of the earth rotation process. Nothing would happen but the measurements of time also should change accordingly. That is not how we measure time. Some times there might no such thing as gravity! Where I live, that is on Tuesday afternoons between 3:10 and 3:15.
swansont Posted November 3, 2014 Posted November 3, 2014 We see the value/length of a second as a day have 86,400 of same in it. but what will happen on a scenario when a change of speed of the earth rotation process. Nothing would happen but the measurements of time also should change accordingly. It's already happened; we're on atomic time. Days don't have exactly 86,400 seconds in them. That's an approximation and an average — noon can be up to ~15 minutes earlier or later than the mean because the length of the day isn't a constant. And the rotation has been slowing down; days are, on average, a millisecond or so longer, which is why we have to insert leap seconds every now and then. A mean-solar-time average day having (close to) exactly 86,400 seconds would have happened around 1830
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now