Re: green stars

From	William Vetter <mdhangton@gmail.com>
Newsgroups	rec.arts.sf.written, sci.physics
Subject	Re: green stars
Date	2015-10-04 16:45 -0400
Organization	A noiseless patient Spider
Message-ID	<mus310$apr$1@dont-email.me> (permalink)
References	(1 earlier) <k8SdnVsCeckGUpPLnZ2dnUU7-S-dnZ2d@giganews.com> <nvM5yI.1sLq@kithrup.com> <XnsA527A31B8D7FBtaustingmail@69.16.179.43> <nvMHKs.671@kithrup.com> <ck411b5vs40635kls186iij3v8tcppvlbq@4ax.com>

Cross-posted to 2 groups.

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Joy Beeson wrote:
> I figured it out when I wondered why I never see electric stove
> burners glowing read.
>
> Start with a burner that's merely warm.  You can feel the infra-red
> radiation coming off it, but the coils are black.
>
> As the burner heats, it gives off more infra red, but the peak of the
> spectrum its giving off shifts blueward, so it also gives off a little
> red.  But it's very little red, and you'd have to be thoroughly
> dark-adapted to see it.
>
> As it heats further, it give off more infra-red, and more red, but
> when the peak is in the red, there is a lot of orange and yellow and
> green and blue in the sloping tail, just as there is a lot of
> infra-red in the other sloping tail.  
>
> Even though the peak is in the red, there's enough higher-frequency
> light that you don't see a pure-red red.
>
> Get it a little hotter and the peak goes higher and shifts a little
> more, and you see a definite orange.  
>
> We've pulled a safety device off somewhere, and this being a gedanken
> experiment, the coils won't melt as the burner keeps heating and the
> peak emission gets higher and bluer.  
>
> As the light gets brighter and the peak moves into the yellow area,
> the light gets paler as well as yellower, and once it's pure yellow,
> it just gets paler.  And when the peak hits green, we get pure white
> light, because green is right in the middle, and there is as much
> long-wave radiation below it as there is short-wave radiation above
> it.
>
> Which makes me wonder why plants reject green light instead of using
> it.
>
> Still hotter, and the light starts to take on a pale blue cast.  If
> it's possible for something to get hot enough to appear pure blue, I
> don't want to be in the same solar system with it, and I'm not sure I
> want to be in the same galaxy.

I happened to be looking at one when it burnt out a couple months ago.  
It was normal red, then one spot on the coil turned yellow then 
splattered apart in a white spark.  Inside the metal spiral there's a 
resistance wire with some kind of ceramic packing.  This ceramic burned 
for a while with a modest yellow flame and then went out after I turned 
circuit breaker off.

No sequence of blackbody color changes.

Thread

green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-02 01:17 -0700
  Re: green stars Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-10-02 14:40 -0400
    Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-02 22:18 +0000
      Re: green stars Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2015-10-02 16:02 -0700
        Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-03 02:29 +0000
          Re: green stars Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2015-10-02 22:29 -0700
          Re: green stars Joy Beeson <jbeeson@invalid.net.invalid> - 2015-10-03 23:49 -0300
            Re: green stars "Mike Dworetsky" <platinum198@pants.btinternet.com> - 2015-10-04 08:48 +0100
              Re: green stars Cryptoengineer <treifamily@gmail.com> - 2015-10-04 11:07 -0500
                Re: green stars "Brian M. Scott" <b.scott@csuohio.edu> - 2015-10-04 12:50 -0400
                Re: green stars Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2015-10-04 10:54 -0700
                Re: green stars "J. Clarke" <j.clarke.873638@gmail.com> - 2015-10-04 13:21 -0400
                Re: green stars Greg Goss <gossg@gossg.org> - 2015-10-04 11:15 -0600
                Re: green stars Stumpy <perilmung@spamnet.con> - 2015-10-05 13:39 -0700
                Re: green stars Quadibloc <jsavard@ecn.ab.ca> - 2015-10-08 20:27 -0700
                Re: green stars Greg Goss <gossg@gossg.org> - 2015-10-09 00:08 -0600
                Re: green stars "J. Clarke" <j.clarke.873638@gmail.com> - 2015-10-09 04:54 -0400
                Re: green stars William Vetter <mdhangton@gmail.com> - 2015-10-09 13:09 -0400
                Re: green stars petertrei@gmail.com - 2015-10-09 10:16 -0700
                Re: green stars scott@slp53.sl.home (Scott Lurndal) - 2015-10-09 18:20 +0000
                Re: green stars "J. Clarke" <j.clarke.873638@gmail.com> - 2015-10-09 19:28 -0400
                Re: green stars wdstarr@panix.com (William December Starr) - 2015-10-09 21:05 -0400
                Re: green stars "Sea Wasp (Ryk E. Spoor)" <seawasp@sgeinc.invalid.com> - 2015-10-09 21:42 -0400
                Re: green stars "John F. Eldredge" <john@jfeldredge.com> - 2015-10-10 16:55 +0000
            Re: green stars "Sea Wasp (Ryk E. Spoor)" <seawasp@sgeinc.invalid.com> - 2015-10-04 09:27 -0400
            Re: green stars William Vetter <mdhangton@gmail.com> - 2015-10-04 16:45 -0400
        Re: green stars Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-10-03 17:40 -0400
          Re: green stars Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2015-10-03 14:51 -0700
          Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-03 21:54 +0000
            Re: green stars Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2015-10-03 17:24 -0700
            Re: green stars wdstarr@panix.com (William December Starr) - 2015-10-04 06:46 -0400
              Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-04 13:15 +0000
                Re: green stars jmfbahciv <See.above@aol.com> - 2015-10-04 14:27 +0000
                Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-04 16:53 +0000
                Re: green stars jmfbahciv <See.above@aol.com> - 2015-10-05 13:02 +0000
                Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-05 14:39 +0000
                Re: green stars jmfbahciv <See.above@aol.com> - 2015-10-06 13:34 +0000
                Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-06 14:24 +0000
                Re: green stars jmfbahciv <See.above@aol.com> - 2015-10-07 13:18 +0000
                Re: green stars Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-10-07 19:27 -0400
                Re: green stars "Brian M. Scott" <b.scott@csuohio.edu> - 2015-10-07 19:43 -0400
                Re: green stars Greg Goss <gossg@gossg.org> - 2015-10-08 01:58 -0600
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-08 01:11 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-08 13:49 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-08 21:20 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-09 22:04 -0700
                Re: green stars Quadibloc <jsavard@ecn.ab.ca> - 2015-10-10 11:49 -0700
                Re: green stars hamish.laws@gmail.com - 2015-12-05 02:32 -0800
                Re: green stars wdstarr@panix.com (William December Starr) - 2015-10-08 08:19 -0400
                Re: green stars Greg Goss <gossg@gossg.org> - 2015-10-09 00:10 -0600
                Re: green stars William Vetter <mdhangton@gmail.com> - 2015-10-09 13:19 -0400
                Re: green stars wdstarr@panix.com (William December Starr) - 2015-10-09 21:27 -0400
                Re: green stars Greg Goss <gossg@gossg.org> - 2015-10-10 20:12 -0600
                Re: green stars hamish.laws@gmail.com - 2015-12-05 02:22 -0800
                Re: green stars Cryptoengineer <treifamily@gmail.com> - 2015-12-05 10:52 -0600
                Re: green stars Greg Goss <gossg@gossg.org> - 2015-12-05 10:42 -0700
                Re: green stars "Brian M. Scott" <b.scott@csuohio.edu> - 2015-12-05 13:02 -0500
                Re: green stars Quadibloc <jsavard@ecn.ab.ca> - 2015-12-05 11:33 -0800
                Re: green stars Kevrob <kevrob@my-deja.com> - 2015-12-05 15:00 -0800
                Re: green stars Greg Goss <gossg@gossg.org> - 2015-12-06 01:56 -0700
                Re: green stars Lofty Goat <rlwatkins@gmail.com> - 2015-10-05 19:08 -0500
                Re: green stars Dimensional Traveler <dtravel@sonic.net> - 2015-10-05 17:20 -0700
                Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-06 01:09 +0000
                Re: green stars "J. Clarke" <j.clarke.873638@gmail.com> - 2015-10-05 22:21 -0400
                Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-06 02:33 +0000
                Re: green stars "J. Clarke" <j.clarke.873638@gmail.com> - 2015-10-05 23:03 -0400
                Re: green stars Dimensional Traveler <dtravel@sonic.net> - 2015-10-05 22:03 -0700
                Re: green stars Wayne Brown <fwbrown@bellsouth.net> - 2015-10-08 19:38 +0000
                Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-08 22:19 +0000
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-08 16:14 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-08 16:16 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-08 19:33 -0700
                Re: green stars "J. Clarke" <j.clarke.873638@gmail.com> - 2015-10-08 21:36 -0400
                Re: green stars djheydt@kithrup.com (Dorothy J Heydt) - 2015-10-09 04:19 +0000
                Re: green stars Quadibloc <jsavard@ecn.ab.ca> - 2015-10-08 22:51 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-09 11:12 -0700
                Re: green stars scott@slp53.sl.home (Scott Lurndal) - 2015-10-09 14:05 +0000
                Re: green stars "J. Clarke" <j.clarke.873638@gmail.com> - 2015-10-08 18:57 -0400
                Re: green stars jmfbahciv <See.above@aol.com> - 2015-10-06 13:34 +0000
                Re: green stars Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2015-10-04 10:57 -0700
              Re: green stars "Brian M. Scott" <b.scott@csuohio.edu> - 2015-10-04 10:41 -0400
                Re: green stars wdstarr@panix.com (William December Starr) - 2015-10-04 13:43 -0400
      Re: green stars wdstarr@panix.com (William December Starr) - 2015-10-02 22:38 -0400
      Re: green stars Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-10-03 17:37 -0400
        Re: green stars Gutless Umbrella Carrying Sissy <taustinca@gmail.com> - 2015-10-03 14:52 -0700
        Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-05 01:17 -0700
          Re: green stars Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-10-05 14:04 -0400
            Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-05 12:58 -0700
              Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-05 23:52 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-06 10:24 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-06 12:35 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-06 15:15 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-06 15:31 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-06 23:12 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-06 23:34 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-07 00:49 -0700
                Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-08 21:24 -0700
        Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-05 01:39 -0700
          Re: green stars The Starmaker <starmaker@ix.netcom.com> - 2015-10-05 01:55 -0700
  Re: green stars Quadibloc <jsavard@ecn.ab.ca> - 2015-10-08 20:31 -0700

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