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  #1  
Old 05-07-2012, 08:25 PM
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Terri Finch Terri Finch is online now
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Default May 20 2012 Solar Eclipse Info

http://www.eclipseafrique.com/dbimag..._-_ARIZONA.pdf
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  #2  
Old 05-17-2012, 11:54 AM
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Default Safe Solar Eclipse Viewing ideas

Many thanks to Leah for collecting these many ways you can view the eclipse safely:

suggestions for safe viewing: http://mreclipse.com/Totality2/TotalityCh11.html

in the section on pinhole projection method, where they mention "two thin but stiff pieces of white cardboard" - paper plates are very good for this. remember to stand with your back to the Sun when using this. you can practice on a non-eclipse day.

another projection method, not listed in the article is: look on the ground under a tree. the spaces between the leaves form many pinholes, and you will see a whole bunch of crescents as the sun is eclipsed. makes a great photo! http://www.hartrao.ac.za/other/eclipse2002/pinhole.html

and here is another link I found that you can share with your students, including step-by-step instructions for making a pinhole projection viewer: http://www.exploratorium.edu/eclipse/how.html

I tried several different methods of pinhole projection, and found that the "two pieces of cardboard" is easiest to use and gives the best results - even better than the one with the UPS tube in the exploratorium article.

paper plates work well and are easily available, but I used box lids from a case of copy paper. or you can use the sides of a cut-up carton, or a shoebox and its lid, etc etc.

you can even punch holes in a pattern (e.g. I made one where the pinholes are arranged to show the number 2012) and when you use it during the eclipse - each pinhole will show a view of the eclipsed Sun. great photo-op!

if using a pinhole projector, it's a good idea to prepare it ahead of time, and try it out before the eclipse. you can try different size pinholes (anywhere from very tiny, to about 1/8 inch) and see what gives you the best effect. I made one with actual pinholes, and another with pinholes enlarged using a sharpened pencil (that's for the 1/8 inch). you don't need to use aluminum foil - I made the pinholes directly in the cardboard. (and if you make one in the wrong place, just cover it with a small piece of paper or posterboard.)

besides testing the pinhole projectors outside, I also tested them with a flashlight in a darkened room, to make sure that what I was seeing was an image and not just a circle of diffuse light projected through a circular opening. you can also test them by using them when the Sun is partly hidden by a tree or building, and then you can see that you are getting an image and not just a circle of light.
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Terri Finch, PAS Events Coordinator
Private Music Instructor: http://betterfly.com/MusicByTerri
Visit the PAS Digest Blog: http://pasaz-digest.blogspot.com/
Variety is the Spice of Life
& in Vending, it's the Generator of Sales
& in Music, it's Pleasurable Sounds,
& in Astronomy, it's Eye Candy.

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  #3  
Old 05-18-2012, 02:21 PM
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Terri Finch Terri Finch is online now
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Default Eclipse - live on the web

Arizona's Mount Lemon will be streaming, live on the web,
the image of the Solar Eclipse.

To view it go to nightskiesnetwork.com

sign up for a free account, scroll down, click the button
"view as guest"

You will then be taken to the page that has the current live views.

Find the one labeled "sky center" and click on it.
They will be streaming at least 30 minutes in advance of the start of the
eclipse.

Note: you can re-size the window if you need to.
__________________
Terri Finch, PAS Events Coordinator
Private Music Instructor: http://betterfly.com/MusicByTerri
Visit the PAS Digest Blog: http://pasaz-digest.blogspot.com/
Variety is the Spice of Life
& in Vending, it's the Generator of Sales
& in Music, it's Pleasurable Sounds,
& in Astronomy, it's Eye Candy.

Reply With Quote
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