[Lex Computer & Tech Group/LCTG] earth rotation

[Pearlman, Michael R. (Mike)]

That's why old folks take a nap.

On Mon, Jan 4, 2021 at 3:08 PM <palbin24 at yahoo.com> wrote:

> Now I know why I am more tired!
>
> Peter
>
> > On Jan 4, 2021, at 2:57 PM, Pearlman, Michael R. (Mike) <
> mpearlman at cfa.harvard.edu> wrote:
> >
> > Folks,
> >
> > A hundred years from now the day will be 2 millesec longer. This rate was
> > computed using historical solar eclipses. If you know any really old
> folks,
> > ask them if they have noticed a change.
> >
> > Happy New Year,  Mike Pearlman
> >
> >
> >
> >> On Sun, Jan 3, 2021 at 5:40 PM john rudy <jjrudy1 at comcast.net> wrote:
> >>
> >> I sent it out because although the questions might be silly the answers
> >> are usually fascinating
> >>
> >>
> >>
> >> John Rudy
> >>
> >> 781-861-0402
> >>
> >> 781-718-8334 (cell)
> >>
> >> <mailto:John.rudy at alum.mit.edu> John.rudy at alum.mit.edu
> >>
> >>
> >>
> >> 13 Hawthorne Lane
> >>
> >> Bedford, MA  01730-1047
> >>
> >>
> >>
> >>
> >>
> >> From: Michael Alexander <mna.ma at yahoo.com>
> >> Sent: Sunday, January 3, 2021 5:37 PM
> >> To: john rudy <jjrudy1 at comcast.net>; Lex Computer Group <
> >> LCTG at lists.toku.us>
> >> Subject: Re: [Lex Computer & Tech Group/LCTG] earth rotation
> >>
> >>
> >>
> >> The article is an interesting thought-curiosity.  However, it doesn’t
> >> address the foundational question:  Why on earth [ :-) ]  should the
> earth
> >> start rotating faster??
> >>
> >>
> >>
> >> The earth’s rotation actually should be slowing down.  Why?  Because of
> >> friction from tides (on land as well as water).  Tidal friction acts as
> a
> >> kind of brake (think of the friction from a bicycle brake slowing a
> >> rotating bicycle wheel).
> >>
> >>
> >>
> >> Long-term (very long-term) earth’s rotation will slow so earth keeps the
> >> same face opposite the moon, just as, today, the moon ‘shows’ one face
> to
> >> the earth.
> >>
> >>
> >>
> >>    – Mike Alexander
> >>
> >>
> >>
> >>
> >> On Sunday, January 3, 2021, 3:08 PM, john rudy <jjrudy1 at comcast.net
> >> <mailto:jjrudy1 at comcast.net> > wrote:
> >>
> >> https://www.popsci.com/earth-spin-faster/?utm_source=internal
> >>
> >> <https://www.popsci.com/earth-spin-faster/?utm_source=internal <
> >>
> https://www.popsci.com/earth-spin-faster/?utm_source=internal&utm_medium=em
> >
> >> &utm_medium=em
> >>
> >> ail&tp=i-1NGB-Et-SfO-1Du6yj-1c-grOD-1c-1DtdWU-l5XZOopE3C-2HKV3Q>
> >>
> >>
> >>
> &utm_medium=email&tp=i-1NGB-Et-SfO-1Du6yj-1c-grOD-1c-1DtdWU-l5XZOopE3C-2HKV3
> >>
> >> Q
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> Pretty interesting story on what happens if the earth's rotation speeds
> up
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> John Rudy
> >>
> >>
> >>
> >> 781-861-0402
> >>
> >>
> >>
> >> 781-718-8334 (cell)
> >>
> >>
> >>
> >> John.rudy at alum.mit.edu <mailto:John.rudy at alum.mit.edu>  <mailto:
> >> John.rudy at alum.mit.edu <mailto:John.rudy at alum.mit.edu> >
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> 13 Hawthorne Lane
> >>
> >>
> >>
> >> Bedford, MA  01730-1047
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
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