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Re: .split() Qeustion

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On Friday 16 August 2013 10:07:12 Roy Smith did opine:

> In article <520da6d1$0$30000$c3e8da3$5496439d@news.astraweb.com>,
> 
>  Steven D'Aprano <steve+comp.lang.python@pearwood.info> wrote:
> > On Thu, 15 Aug 2013 16:43:41 +0100, Chris Angelico wrote:
> > > A mole is as much a number (6e23) as the light year is a number
> > > (9.5e15).
> > 
> > Not quite. A mole (abbreviation: mol) is a name for a specific number,
> > like couple (2) or dozen (12) or gross (144), only much bigger:
> > 6.02e23. And I can't believe I still remember that value :-)
> 
> I remember it as 6.022e23 :-)
> 
> In my high school chemistry class, there was a wooden cube, about 1/2
> meter on a side, sitting on the lecture desk in the front of the room.
> The only writing on it was "6.022 x 10^23".  It sat there all year.
> 
> The volume of the cube was that of 1 mole of an ideal gas at STP.
> 
> > A light-year, on the other hand, is a dimensional quantity. Whereas
> > mole is dimensionless, light-year has dimensions of Length, and
> > therefore the value depends on the units you measure in:
> > 
> > 1 light-year:
> > 
> > = 3.724697e+17 inches
> > = 0.30660139 parsec
> > = 9.4607305e+12 kilometres
> 
> Hold your hands out in front of you, palms facing towards each other,
> one shoulder-width apart.  That distance is about one light-nanosecond.

Or a quite noticeable color shift when you are cutting coax cables for 
color phase matching, which we often had to do in an analog NTSC broadcast 
facility.  Where a 1 degree shift, may or may not have been noticeable, was 
the cable equivalent of 7.7601420788892939683e-10 seconds, which was for 
the small foam cored cables used for such, with a Propagation Velocity of 
0.78*C, only a very short length of cable.  I'd have figured how much but I 
got lost pushing buttons in kcalc just now and came up with something I'd 
have to use a micrometer to measure. Its been close to 30 years since I had 
to do such calcs on a near daily basis.  Your trivia factoid for the day, 
and I now return you to the regularly scheduled discussion going no where 
specifically.  :-)

Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: <http://coyoteden.dyndns-free.com:85/gene> is up!
My views 
<http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml>
I suppose that in a few hours I will sober up. That's such a sad
thought. I think I'll have a few more drinks to prepare myself.
A pen in the hand of this president is far more
dangerous than 200 million guns in the hands of
         law-abiding citizens.

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.split() Qeustion eschneider92@comcast.net - 2013-08-13 21:51 -0700
  Re: .split() Qeustion Gary Herron <gary.herron@islandtraining.com> - 2013-08-13 22:12 -0700
    Re: .split() Qeustion Alister <alister.ware@ntlworld.com> - 2013-08-14 08:30 +0000
      Re: .split() Qeustion Joshua Landau <joshua@landau.ws> - 2013-08-14 11:31 +0100
        Re: .split() Qeustion Alister <alister.ware@ntlworld.com> - 2013-08-14 13:29 +0000
        Re: .split() Qeustion Duncan Booth <duncan.booth@invalid.invalid> - 2013-08-15 09:15 +0000
          Re: .split() Qeustion wxjmfauth@gmail.com - 2013-08-15 02:46 -0700
            Re: .split() Qeustion Chris Angelico <rosuav@gmail.com> - 2013-08-15 10:54 +0100
            Re: .split() Qeustion Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-08-15 11:22 +0000
              Re: .split() Qeustion wxjmfauth@gmail.com - 2013-08-15 06:58 -0700
      Re: .split() Qeustion Peter Otten <__peter__@web.de> - 2013-08-14 13:45 +0200
      Re: .split() Qeustion Joshua Landau <joshua@landau.ws> - 2013-08-14 12:55 +0100
        Re: .split() Qeustion wxjmfauth@gmail.com - 2013-08-14 07:32 -0700
          Re: .split() Qeustion random832@fastmail.us - 2013-08-14 13:05 -0400
            Re: .split() Qeustion Steven D'Aprano <steve@pearwood.info> - 2013-08-15 07:17 +0000
          Re: .split() Qeustion Chris Angelico <rosuav@gmail.com> - 2013-08-14 18:14 +0100
            Re: .split() Qeustion wxjmfauth@gmail.com - 2013-08-15 00:46 -0700
              Re: .split() Qeustion Lele Gaifax <lele@metapensiero.it> - 2013-08-15 16:38 +0200
              Re: .split() Qeustion MRAB <python@mrabarnett.plus.com> - 2013-08-15 15:54 +0100
              Re: .split() Qeustion Lele Gaifax <lele@metapensiero.it> - 2013-08-15 17:30 +0200
              Re: .split() Qeustion Chris Angelico <rosuav@gmail.com> - 2013-08-15 16:43 +0100
                Re: .split() Qeustion Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-08-16 04:13 +0000
                Re: .split() Qeustion Roy Smith <roy@panix.com> - 2013-08-16 00:29 -0400
                Re: .split() Qeustion Dave Angel <davea@davea.name> - 2013-08-16 05:27 +0000
                Re: .split() Qeustion Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-08-17 02:38 +0000
                Re: .split() Qeustion Chris Angelico <rosuav@gmail.com> - 2013-08-17 03:45 +0100
                Re: .split() Qeustion Gene Heskett <gheskett@wdtv.com> - 2013-08-16 10:30 -0400
                Re: .split() Qeustion Gene Heskett <gheskett@wdtv.com> - 2013-08-16 10:24 -0400
                Re: .split() Qeustion Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-08-17 11:16 +1200
                Re: .split() Qeustion Ben Finney <ben+python@benfinney.id.au> - 2013-08-16 15:59 +1000
                Re: .split() Qeustion Roy Smith <roy@panix.com> - 2013-08-16 07:14 -0400
                Re: .split() Qeustion wxjmfauth@gmail.com - 2013-08-16 06:14 -0700
                Re: .split() Qeustion Roy Smith <roy@panix.com> - 2013-08-16 09:23 -0400
                Re: .split() Qeustion wxjmfauth@gmail.com - 2013-08-17 01:09 -0700
                Re: .split() Qeustion Roy Smith <roy@panix.com> - 2013-08-17 07:55 -0400
                Re: .split() Qeustion Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2013-08-18 11:30 +1200
                Re: .split() Qeustion wxjmfauth@gmail.com - 2013-08-18 00:17 -0700
                Re: .split() Qeustion Grant Edwards <invalid@invalid.invalid> - 2013-08-16 13:59 +0000
              Re: .split() Qeustion Joshua Landau <joshua@landau.ws> - 2013-08-15 17:54 +0100
              Re: .split() Qeustion Chris Angelico <rosuav@gmail.com> - 2013-08-15 19:28 +0100
                Re: .split() Qeustion Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-08-16 04:17 +0000
              Re: .split() Qeustion Joshua Landau <joshua@landau.ws> - 2013-08-15 19:40 +0100
              Re: .split() Qeustion Terry Reedy <tjreedy@udel.edu> - 2013-08-15 17:40 -0400
                Re: .split() Qeustion Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-08-16 04:22 +0000
              Re: .split() Qeustion Dave Angel <davea@davea.name> - 2013-08-15 22:56 +0000
                Re: .split() Qeustion Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-08-16 04:39 +0000
                Re: .split() Qeustion Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-08-16 04:41 +0000
          Re: .split() Qeustion Tim Chase <python.list@tim.thechases.com> - 2013-08-14 12:29 -0500
          Re: .split() Qeustion Skip Montanaro <skip@pobox.com> - 2013-08-14 12:38 -0500
          Re: .split() Qeustion Chris Angelico <rosuav@gmail.com> - 2013-08-14 18:46 +0100
          Re: .split() Qeustion Terry Reedy <tjreedy@udel.edu> - 2013-08-14 15:45 -0400
  Re: .split() Qeustion Dave Angel <davea@davea.name> - 2013-08-14 05:35 +0000
  Re: .split() Qeustion eschneider92@comcast.net - 2013-08-13 22:44 -0700
  Re: .split() Qeustion Krishnan Shankar <i.am.songoku@gmail.com> - 2013-08-13 22:37 -0700
  .split() Qeustion "Alfonso Andalon Jr." <alfonsoandalon@gmail.com> - 2013-08-16 21:31 -0700

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