From: Carrie Maslow (cmaslow@lwhs.org)
Date: Mon Apr 21 2003 - 16:28:35 PDT
Message-Id: <a05010400baca2e2694ac@[65.205.197.146]> Date: Mon, 21 Apr 2003 16:28:35 -0700 From: Carrie Maslow <cmaslow@lwhs.org> Subject: Re: Pinhole Digest #1191 - 04/18/03
Hello,
I have a question related to the Winogradsky columns we built this
summer in the high school bio institute. I built one last summer but
didn't fill it with marsh mud until school started. The colorful
bacterial colonies (orange, green, purple, brown) are all thriving
and competing but I'm finding that I have to water it at least once a
month or else it's totally dry. I know it's only supposed to be
watered once a year- any ideas of what's I did wrong? Thanks.
Carrie Maslow
>Pinhole Digest #1191 - Friday, April 18, 2003
>
> color addition
> by "Eric Plett" <EPlett@serrahs.com>
> Re: pinhole color addition
> by "Paul Doherty" <pauld@exploratorium.edu>
> Re: pinhole color addition
> by "Andria Erzberger" <alerzberger@lbl.gov>
> Re: pinhole spectra
> by "Andria Erzberger" <alerzberger@lbl.gov>
> Science Made Stupid
> by "Deborah Hunt" <dhunt@exploratorium.edu>
>
>
>----------------------------------------------------------------------
>
>Subject: color addition
>From: "Eric Plett" <EPlett@serrahs.com>
>Date: Thu, 17 Apr 2003 08:32:52 -0700
>
>Hello Pinholers,
>
>At the Exploratorium TI - physics, light, we used one exhibit where you
>could control different levels of primary colors (red, blue, and green) to
>produce any other color. I have made the set up with light bulbs but those
>of you who have them know that there are limitations. I now have a
>projector in my room that is connected to my computer (including internet)
>and shows on a big screen. I'd like to use it to show colors via my
>computer. I remember some of the teachers saying that there were other ways
>of accessing this type of color addition either on the internet or even on
>any computer. Can someone help me out? Where can I find this function?
>
>Eric Plett
>
>----------------------------------------------------------------------
>
>Subject: Re: pinhole color addition
>From: "Paul Doherty" <pauld@exploratorium.edu>
>Date: Thu, 17 Apr 2003 07:45:16 -0700
>
>Hi eric
>
>the Exploratorium has posted the Mix and match exhibit on line for use with
>classroom computers
>
>here's the link
>
>http://www.exploratorium.edu/exhibits/mix_n_match/index.html
>
>Paul D
>
>>Hello Pinholers,
>>
>>At the Exploratorium TI - physics, light, we used one exhibit where you
>>could control different levels of primary colors (red, blue, and green) to
>>produce any other color. I have made the set up with light bulbs but those
>>of you who have them know that there are limitations. I now have a
>>projector in my room that is connected to my computer (including internet)
>>and shows on a big screen. I'd like to use it to show colors via my
>>computer. I remember some of the teachers saying that there were other ways
>>of accessing this type of color addition either on the internet or even on
>>any computer. Can someone help me out? Where can I find this function?
>>
>>Eric Plett
>>
>>---------------------------------------------------------------------------
>>
>>To unsubscribe from pinhole, send an email to requests@exploratorium.edu
>>with the words 'unsubscribe pinhole' (without the quotes) in the SUBJECT
>>of the email.
>>
>>To subscribe to the digest and only get 1 combined message a day, send an
>>email to requests@exploratorium.edu with the words 'subscribe digest
>>pinhole' (without the quotes) in the SUBJECT of the email.
>>
>>Check out what your colleagues have written on Pinhole in the Pinhole
>>archives at: http://saturn.exploratorium.edu/ti/alumni/pinhole.html
>>---------------------------------------------------------------------------
>
>
>
>
>----------------------------------------------------------------------
>
>Subject: Re: pinhole color addition
>From: "Andria Erzberger" <alerzberger@lbl.gov>
>Date: Thu, 17 Apr 2003 08:52:22 -0700
>
>
>
>--Apple-Mail-2--726901785
>Content-Transfer-Encoding: 7bit
>Content-Type: text/plain;
> delsp=yes;
> charset=US-ASCII;
> format=flowed
>
>This does the 3 primary colors:
>http://www.phy.ntnu.edu.tw/java/image/rgbColor.html
>This does shadows with the 3 primary colors:
>http://www.phy.ntnu.edu.tw/java/shadow/shadow.html
>
>You might also like some web pages which tell the RGB values for many
>colors. For instance red gets 2 digits 0-9, then A-F. So, 00 would be
>no red, and FF would be maximum red. See:
>http://WWW.HTMLHELP.COM/cgi-bin/color.cgi and many others.
>Andi
>
>On Thursday, April 17, 2003, at 08:32 AM, Eric Plett wrote:
>
>> Hello Pinholers,
>>
>> At the Exploratorium TI - physics, light, we used one exhibit where you
>> could control different levels of primary colors (red, blue, and
>> green) to
>> produce any other color. I have made the set up with light bulbs but
>> those
>> of you who have them know that there are limitations. I now have a
>> projector in my room that is connected to my computer (including
>> internet)
>> and shows on a big screen. I'd like to use it to show colors via my
>> computer. I remember some of the teachers saying that there were
>> other ways
>> of accessing this type of color addition either on the internet or
>> even on
>> any computer. Can someone help me out? Where can I find this
>> function?
>>
>> Eric Plett
>>
>> -----------------------------------------------------------------------
>> ----
>>
>> To unsubscribe from pinhole, send an email to
>> requests@exploratorium.edu
>> with the words 'unsubscribe pinhole' (without the quotes) in the
>> SUBJECT
>> of the email.
>>
>> To subscribe to the digest and only get 1 combined message a day, send
>> an
>> email to requests@exploratorium.edu with the words 'subscribe digest
>> pinhole' (without the quotes) in the SUBJECT of the email.
>>
>> Check out what your colleagues have written on Pinhole in the Pinhole
>> archives at: http://saturn.exploratorium.edu/ti/alumni/pinhole.html
>> -----------------------------------------------------------------------
>> ----
>>
>>
>>
>Andria Erzberger
>Lawrence Berkeley Natl. Lab
>510-486-6610
>510-520-8655 cell
>
>--Apple-Mail-2--726901785
>Content-Transfer-Encoding: 7bit
>Content-Type: text/enriched;
> charset=US-ASCII
>
>This does the 3 primary colors:
><underline>http://www.phy.ntnu.edu.tw/java/image/rgbColor.html>
>
>This does shadows with the 3 primary colors:
><underline>http://www.phy.ntnu.edu.tw/java/shadow/shadow.html>
>
>
>You might also like some web pages which tell the RGB values for many
>colors. For instance red gets 2 digits 0-9, then A-F. So, 00 would be
>no red, and FF would be maximum red. See:
><underline>http://WWW.HTMLHELP.COM/cgi-bin/color.cgi> and
>many others.
>
>Andi
>
>
>On Thursday, April 17, 2003, at 08:32 AM, Eric Plett wrote:
>
>
><excerpt>Hello Pinholers,
>
>
>At the Exploratorium TI - physics, light, we used one exhibit where you
>
>could control different levels of primary colors (red, blue, and
>green) to
>
>produce any other color. I have made the set up with light bulbs but
>those
>
>of you who have them know that there are limitations. I now have a
>
>projector in my room that is connected to my computer (including
>internet)
>
>and shows on a big screen. I'd like to use it to show colors via my
>
>computer. I remember some of the teachers saying that there were
>other ways
>
>of accessing this type of color addition either on the internet or
>even on
>
>any computer. Can someone help me out? Where can I find this
>function?
>
>
>Eric Plett
>
>
>---------------------------------------------------------------------------
>
>
>To unsubscribe from pinhole, send an email to
>requests@exploratorium.edu
>
>with the words 'unsubscribe pinhole' (without the quotes) in the
>SUBJECT
>
>of the email.
>
>
>To subscribe to the digest and only get 1 combined message a day, send
>an
>
>email to requests@exploratorium.edu with the words 'subscribe digest
>
>pinhole' (without the quotes) in the SUBJECT of the email.
>
>
>Check out what your colleagues have written on Pinhole in the Pinhole
>
>archives at: http://saturn.exploratorium.edu/ti/alumni/pinhole.html
>
>---------------------------------------------------------------------------
>
>
>
>
></excerpt>Andria Erzberger
>
>Lawrence Berkeley Natl. Lab
>
>510-486-6610
>
>510-520-8655 cell
>
>
>--Apple-Mail-2--726901785--
>
>
>----------------------------------------------------------------------
>
>Subject: Re: pinhole spectra
>From: "Andria Erzberger" <alerzberger@lbl.gov>
>Date: Thu, 17 Apr 2003 08:53:58 -0700
>
>
>
>--Apple-Mail-4--726805405
>Content-Transfer-Encoding: 7bit
>Content-Type: text/plain;
> charset=US-ASCII;
> format=flowed
>
>This one shows n, p, and e moving around, electron energy levels, and
>spectra for many elements:
>http://www.colorado.edu/physics/2000/applets/a2.htm
>
>Andi
>--Apple-Mail-4--726805405
>Content-Transfer-Encoding: 7bit
>Content-Type: text/enriched;
> charset=US-ASCII
>
>This one shows n, p, and e moving around, electron energy levels, and
>spectra for many elements:
><underline>http://www.colorado.edu/physics/2000/applets/a2.htm>
>
>
>Andi
>--Apple-Mail-4--726805405--
>
>
>----------------------------------------------------------------------
>
>Subject: Science Made Stupid
>From: "Deborah Hunt" <dhunt@exploratorium.edu>
>Date: Thu, 17 Apr 2003 12:15:12 -0700
>
>Check out: http://www.besse.at/sms/smsintro.html
>
>The book this site is based on, Science Made Stupid, is actually in
>the Exploratorium's Learning Studio/Library collection (Q 162 .W45
>1985 ).
>
>I stumbled upon the book a few years ago and just had to buy it for
>one of my friends who is a teacher in OUSD. It was already out of
>print, but I found a pristine copy on abebooks.com for just $6.95. If
>you'd like to have something around to show your friends and for a
>good laugh, get the print copy. It reminds me of Mad Magazine.
>
>Deb
>--
>Deborah Hunt
>CTL Senior Information Specialist
>Exploratorium
>3601 Lyon Street
>San Francisco, CA 94123
>Voice: 415-353-0485
>Fax: 415-561-0370
>mailto:dhunt@exploratorium.edu
>
>"A woman is like a tea bag; she never knows how strong she is until she's
>in hot water." Eleanor Roosevelt
>
>----------------------------------------------------------------------
>End of Pinhole Digest
>
>---------------------------------------------------------------------------
>To unsubscribe from pinhole, send an email to requests@exploratorium.edu
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>
>To subscribe to the digest and only get 1 combined message a day, send an
>email to requests@exploratorium.edu with the words 'subscribe digest
>pinhole' (without the quotes) in the SUBJECT of the email.
>
>Check out what your colleagues have written on Pinhole in the
>Pinhole archives at:
>http://saturn.exploratorium.edu/ti/alumni/pinhole.html
>---------------------------------------------------------------------------
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