Re: pinhole accelerating galaxies

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From: Exploratorium Learning Studio (studio@exploratorium.edu)
Date: Thu Apr 07 2005 - 11:46:24 PDT 

Date: Thu, 7 Apr 2005 11:46:24 -0700 (PDT)
From: Exploratorium Learning Studio <studio@exploratorium.edu>
Subject: Re: pinhole accelerating galaxies
Message-ID: <Pine.GSO.4.60.0504071145450.4058@isaac>

"Misconceptions about the Big Bang" was in the March SciAm, and is
available online at

         http://tinyurl.com/4rp6h

Enjoy!

Jo Falcon, MLIS

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On Thu, 7 Apr 2005, Mark Lawton wrote:

> Nathan,
>
> In a very recent article of Scientific American the whole accelerating
> universe issue is discussed nicely. I'd give the student that article to
> read. He would likely enjoy it. I think the title was something like -
> "Misunderstandings about the Big Bang"
>
> I think it was probably Jan or Feb or Mar issue.
>
> -Mark Lawton
> Portland, Oregon
>
> -----Original Message-----
> From: pinhole@exploratorium.edu [mailto:pinhole@exploratorium.edu]
> Sent: Thursday, April 07, 2005 12:20 AM
> To: Pinhole Listserv
> Subject: Pinhole Digest #1720 - 04/07/05
>
> Pinhole Digest #1720 - Thursday, April 7, 2005
>
> Teaching Positions in Dallas, TX
> by "Kimberley Aso" <kaso@marin.marin.k12.ca.us>
> Accelerating galaxies?
> by "Nathan Castellanos" <normal@earthling.net>
>
>
> ----------------------------------------------------------------------
>
> Subject: Teaching Positions in Dallas, TX
> From: "Kimberley Aso" <kaso@marin.marin.k12.ca.us>
> Date: Wed, 6 Apr 2005 12:13:38 -0700
>
> Hey everybody,
>
> I will (sadly) be moving to Dallas, Texas this summer and I am looking for a
> middle
> school science teaching position in either Dallas or the greater Dallas
> area. Is
> anyone familiar with the school districts? Any feedback would be
> appreciated!
>
> Kim Aso
>
> Kimberley Aso
> Physical Science 8
> Miller Creek Middle School
>
>
>
>
> ________________________________________________________________
> Sent via the WebMail system at marin.marin.k12.ca.us
>
>
>
>
>
> ----------------------------------------------------------------------
>
> Subject: Accelerating galaxies?
> From: "Nathan Castellanos" <normal@earthling.net>
> Date: Wed, 06 Apr 2005 22:09:48 -0700
>
> I have a student in my physics class who likes to think about big things,
> and today he asked me a question and I had no clue.
>
> He said that he has seen on some TV specials or something that the galaxies
> are accelerating away from each other, and that this remains largely
> unexplained. He also noted that the fact that electrons seem to maintain
> their orbital distance from the nucleus. He said this is strange because
> perhaps they should be falling into it. He was wondering if it was somehow
> possible that the electron clouds were really shrinking and we just didn't
> notice it. And instead of accelerating the galaxies were just shrinking,
> which makes it look like they are accelerating.
>
> His theory doesn't seem to make sense, but I was unable to give him a
> sensible reason. Any help would be appreciated.
>
> Thanks,
>
> Nathan Castellanos
>
>
>
> ----------------------------------------------------------------------
> End of Pinhole Digest
>
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