Re: .split() Qeustion

From	Dave Angel <davea@davea.name>
Subject	Re: .split() Qeustion
Date	2013-08-16 05:27 +0000
References	(11 earlier) <520CEB96.2050902@mrabarnett.plus.com> <87mwojug2i.fsf@nautilus.nautilus> <mailman.599.1376581424.1251.python-list@python.org> <520da6d1$0$30000$c3e8da3$5496439d@news.astraweb.com> <roy-D18FA8.00293916082013@news.panix.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.612.1376630889.1251.python-list@python.org> (permalink)

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Roy Smith wrote:

> 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.

Narrow shoulders.

I figure it just under a foot.  I once attended a lecture by Grace
Hopper where she handed out "nanoseconds," pieces of wire about a foot
long.  She said that the beaurocrats were always asking how much is a
nanosecond, and couldn't imagine what a billionth was like.  So she gave
them something physical.

-- 
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Thread

.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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