Does Sharp Image Of Distant Galaxy Shred The Fabric Of Space And Time? The sharp image of a galaxy halfway across the universe might shred modern theories about the structures of time and space, and change the way astrophysicists view the "Big Bang." http://www.uah.edu/News/2003news/sharp_image.html I always knew that quantum time and gravity were bunk! Ha! proof at last! Greg __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/
Something about Occam's Razor - no? Brent --- Greg Taylor <astronomus_maximus@yahoo.com> wrote:
Does Sharp Image Of Distant Galaxy Shred The Fabric Of Space And Time?
The sharp image of a galaxy halfway across the universe might shred modern theories about the structures of time and space, and change the way astrophysicists view the "Big Bang."
http://www.uah.edu/News/2003news/sharp_image.html
I always knew that quantum time and gravity were bunk! Ha! proof at last!
Greg
__________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/
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I need some help here from all you experienced mirror makers out there. The other day I was able to focus the suns light on the side of my shed to check the focal length. Well, I didn't see the sun today and there isn't any right now around my place. So, I am trying the old set it up in the house trick where it is nice and worm. I cut a hole in a 8 1/2 by 11 card stock and I sat my mirror up end on a bench so the face was pointing down the hall. My mirror diameter is 12.5 inches and my focal ratio is close to f7. So, if the radius of curvature is twice the focal length and that is supposed to be where a point source of light is supposed to return light to itself then we have 12.5 X 7 = 87.5 (focal length) X 2 = 175 inches (radius of curvature). I found the 175 inch location in the hall (heck, I was in the kitchen by then) I shot a laser pen light thru the hole onto the mirror face to see where the return light was going. I had to adjust the mirror face get the light to return to the card stock. Then I used an LED flashlight through the hole and I kind of got a focus + or - 6 or 8 inches. I didn't feel that it was very precise. Is there a way I can get better results with this method? Jim --------------------------------- Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more
I found a good method. It takes 2 peopel. I got my wife to tell me when it was in focus while I moved the card back and forth and made sure the light stayed on the mirror. When she said it was in focus I marked it on the pantry door then my wife hit the roof. Jim Jim Gibson <xajax99@yahoo.com> wrote: I need some help here from all you experienced mirror makers out there. The other day I was able to focus the suns light on the side of my shed to check the focal length. Well, I didn't see the sun today and there isn't any right now around my place. So, I am trying the old set it up in the house trick where it is nice and worm. I cut a hole in a 8 1/2 by 11 card stock and I sat my mirror up end on a bench so the face was pointing down the hall. My mirror diameter is 12.5 inches and my focal ratio is close to f7. So, if the radius of curvature is twice the focal length and that is supposed to be where a point source of light is supposed to return light to itself then we have 12.5 X 7 = 87.5 (focal length) X 2 = 175 inches (radius of curvature). I found the 175 inch location in the hall (heck, I was in the kitchen by then) I shot a laser pen light thru the hole onto the mirror face to see where the return light was going. I had to adjust the mirror face get the light to return to the card stock. Then I used an LED flashlight through the hole and I kind of got a focus + or - 6 or 8 inches. I didn't feel that it was very precise. Is there a way I can get better results with this method? Jim --------------------------------- Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more --------------------------------- Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more
Be careful of fire. ;) --- Jim Gibson <xajax99@yahoo.com> wrote:
The other day I was able to focus the suns light on the side of my shed to check the focal length. __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/
Oh! Ok Greg thanks. I will shine it on the neighbors house next time J Greg Taylor <astronomus_maximus@yahoo.com> wrote:Be careful of fire. ;) --- Jim Gibson wrote:
The other day I was able to focus the suns light on the side of my shed to check the focal length. __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy --------------------------------- Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, and more
participants (3)
-
Brent Watson -
Greg Taylor -
Jim Gibson