[Python-ideas] OT: slowing rotation [was: High Precision datetime]
On 05/17/2018 12:13 PM, Tim Peters wrote: Other things can cause the Earth's rotation to speed up temporarily (like some major geological events), but they've only been able to overcome factors acting to slow rotation for brief periods, and never yet got near to overcoming them by a full second. How long before the earth stops rotating? When it does, will we be tide-locked with the sun, or will an earth day become an earth year? Inquiring-minds-want-to-know'ly yrs; -- ~Ethan~ ___ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
Re: [Python-ideas] OT: slowing rotation [was: High Precision datetime]
On Fri, May 18, 2018 at 5:53 AM, Ethan Furman wrote: > On 05/17/2018 12:13 PM, Tim Peters wrote: > >> Other things can cause the Earth's rotation to speed up temporarily >> (like some major geological events), but they've only been able to >> overcome factors acting to slow rotation for brief periods, and never >> yet got near to overcoming them by a full second. > > > How long before the earth stops rotating? When it does, will we be > tide-locked with the sun, or will an earth day become an earth year? > > Inquiring-minds-want-to-know'ly yrs; Won't ever happen. A few thousand years ago, the planet heard the adage "one good turn deserves another", and interpreted it as an infinite loop. ChrisA ___ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
Re: [Python-ideas] OT: slowing rotation [was: High Precision datetime]
Ethan Furman wrote: How long before the earth stops rotating? Apparently about 1.9 trillion years. > When it does, will we be > tide-locked with the sun, or will an earth day become an earth year? Wikipedia says the main cause of the slowing is tidal effects from the moon, so probably it would become tide-locked with the moon and then not slow any further. Having a month-long day ought to make our current fears about climate change look like a lot of panic over nothing. However, the good news is that we won't have to worry about it. The sun will become a red giant and swallow the earth long before then. -- Greg ___ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
Re: [Python-ideas] OT: slowing rotation [was: High Precision datetime]
Greg Ewing schrieb am 18.05.2018 um 10:05: > Ethan Furman wrote: >> How long before the earth stops rotating? > > Apparently about 1.9 trillion years. So, does that mean we now need to hold our breath for 1.9 british trillion years or 1.9 american trillion years? Assuming you were referring to the French-Latin-Arabic based numbers and naming systems at all, that is... And anyway, what's that point doing there, right between the "1" and the "9" ? Stefan ___ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
Re: [Python-ideas] OT: slowing rotation [was: High Precision datetime]
On Fri, May 18, 2018 at 6:27 PM, Stefan Behnel wrote: > Greg Ewing schrieb am 18.05.2018 um 10:05: >> Ethan Furman wrote: >>> How long before the earth stops rotating? >> >> Apparently about 1.9 trillion years. > > So, does that mean we now need to hold our breath for 1.9 british trillion > years or 1.9 american trillion years? I'm not sure. How long will it take for people to agree on a meaning for "trillion"? Oh wait, that's even longer. ChrisA ___ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
Re: [Python-ideas] OT: slowing rotation [was: High Precision datetime]
Stefan Behnel wrote: So, does that mean we now need to hold our breath for 1.9 british trillion years or 1.9 american trillion years? Seeing as the time-to-red-giant is only about 5e9 years, I don't think it matters much either way. -- Greg ___ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
Re: [Python-ideas] OT: slowing rotation [was: High Precision datetime]
Chris Angelico wrote: I'm not sure. How long will it take for people to agree on a meaning for "trillion"? About a trillion years, I estimate. :-) -- Greg ___ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
