Groups > sci.physics.relativity > #384490

Re: Interesting problem

Newsgroups	sci.physics.relativity
Date	2016-05-28 04:12 -0700
References	(6 earlier) <ni95c4$1sa2$2@gioia.aioe.org> <ni98io$1c2$3@gioia.aioe.org> <ni9cii$81l$1@gioia.aioe.org> <ni9e87$aub$1@gioia.aioe.org> <nibpf8$194g$1@gioia.aioe.org>
Message-ID	<237b18b1-e989-4556-afa5-5f15b50617aa@googlegroups.com> (permalink)
Subject	Re: Interesting problem
From	Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com>

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On Saturday, May 28, 2016 at 4:47:23 AM UTC-5, HGWilson, DSc. wrote:

> Bodkin, repeating my question is not answering it. I know the 
> answer..you obviously  do not. You probably agree with Poutnik.

Henry, you did not specify in your original problem statement whether the geared
wheel runs along the INSIDE or the OUTSIDE of the circle.

It makes a big difference whether the REVOLUTIONS around the center of the circle are in the SAME or OPPOSITE sense as the ROTATIONS of the geared wheel. 

There is no single correct answer. Either 99 or 101 are correct, depending on
how you or Poutnik or Odd or rotchm visualized the problem.

In the case of the figure 8, the revolutions add up to zero. In the idealized
case of no slippage, this would be regardless of the relative sizes of the top
and bottom of the figure 8. In the case of a REAL geared system, if one of the
loops is too small, the geared wheel may derail as it tries to cross the small
loop. Or if the loop is smaller in diameter than the distance between the teeth,
the geared wheel may just do a "kerchunk" as it crosses the irregularity 
without otherwise noticing.

But of course, for the purposes of this problem, we would be considering the
idealized case. :-)

Thread

Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-26 07:05 +1000
  Re: Interesting problem Poutnik <poutnik4nntp@gmail.com> - 2016-05-25 23:17 +0200
    Re: Interesting problem "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-05-25 14:20 -0700
  Re: Interesting problem "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-05-25 14:18 -0700
  Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-05-25 16:20 -0500
    Re: Interesting problem Tom Roberts <tjroberts137@sbcglobal.net> - 2016-05-25 18:31 -0500
    Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-27 03:25 +1000
      Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-05-26 13:32 -0500
        Re: Interesting problem HGW <hw@...> - 2016-05-27 12:15 +1000
          Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-05-27 04:26 -0500
            Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-27 19:52 +1000
              Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-05-27 05:46 -0500
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-27 21:55 +1000
                Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-05-27 07:23 -0500
                Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-05-27 07:26 -0500
                Re: Interesting problem "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-05-27 05:29 -0700
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-28 19:47 +1000
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-05-28 04:12 -0700
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-05-28 04:51 -0700
                Re: Interesting problem alsor@interia.pl - 2016-05-28 11:27 -0700
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-05-28 14:01 -0700
                Re: Interesting problem alsor@interia.pl - 2016-05-28 15:10 -0700
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-29 09:35 +1000
                Re: Interesting problem alsor@interia.pl - 2016-05-29 10:35 -0700
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-30 07:01 +1000
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-05-29 15:22 -0700
                Re: Interesting problem alsor@interia.pl - 2016-05-30 13:05 -0700
                Re: Interesting problem alsor@interia.pl - 2016-05-30 16:27 -0700
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-31 20:56 +1000
                Re: Interesting problem alsor@interia.pl - 2016-05-31 08:40 -0700
                Re: Interesting problem HGW <hw@...> - 2016-06-02 09:40 +1000
                Re: Interesting problem alsor@interia.pl - 2016-06-02 11:53 -0700
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-05-31 04:25 -0700
                Re: Interesting problem mlwozniak@wp.pl - 2016-05-31 04:58 -0700
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-06-01 06:31 +1000
                Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-05-31 16:30 -0500
                Re: Interesting problem HGW <hw@...> - 2016-06-02 09:44 +1000
                Re: Interesting problem JanPB <filmart@gmail.com> - 2016-05-31 14:58 -0700
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-06-01 06:24 +1000
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-06-01 06:23 -0700
                Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-06-01 11:11 -0500
                Re: Interesting problem HGW <hw@...> - 2016-06-02 09:47 +1000
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-06-01 18:50 -0700
                Re: Interesting problem alsor@interia.pl - 2016-06-02 12:07 -0700
                Re: Interesting problem alsor@interia.pl - 2016-06-01 08:59 -0700
                Re: Interesting problem HGW <hw@...> - 2016-06-02 10:09 +1000
                Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-05-29 13:52 -0500
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-30 07:09 +1000
                Re: Interesting problem Sam Wormley <swormley1@gmail.com> - 2016-05-29 16:26 -0500
                Re: Interesting problem Fabian Russell <fb@zen.info> - 2016-05-30 04:25 +0000
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-31 21:00 +1000
                Re: Interesting problem Fabian Russell <fb@zen.info> - 2016-05-31 22:46 +0000
                Re: Interesting problem HGW <hw@...> - 2016-06-02 09:32 +1000
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-05-27 05:34 -0700
                Re: Interesting problem "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-05-27 05:40 -0700
                Re: Interesting problem "David (Time Lord) Fuller" <fuller.david@hotmail.com> - 2016-05-27 05:43 -0700
                Re: Interesting problem rotchm <rotchm@gmail.com> - 2016-05-27 06:40 -0700
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-05-27 07:42 -0700
                Re: Interesting problem rotchm <rotchm@gmail.com> - 2016-05-27 06:36 -0700
                Re: Interesting problem Odd Bodkin <bodkinodd@gmail.com> - 2016-05-27 09:01 -0500
                Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-28 20:04 +1000
                Re: Interesting problem Prokaryotic Caspase Homolog <prokaryotic.caspase.homolog@gmail.com> - 2016-05-28 04:34 -0700
    Re: Interesting problem Fabian Russell <fb@zen.info> - 2016-05-27 22:03 +0000
      Re: Interesting problem "HGWilson, DSc." <hgw@....> - 2016-05-28 20:10 +1000

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