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You can easily and safely observe the Sun by projecting it through a tiny hole onto a white sheet of paper. This simple device is called a "pinhole camera". You'll need:
2 sheets of stiff white paper
A pin
A sunny day
Perhaps a friend to help
With the pin, punch a hole in the center of one of your pieces of paper. Go outside, hold the paper up and aim the hole at the Sun. (Don't look at the Sun either through the hole or in any other way! ) Now, find the image of the Sun which comes through the hole. Move your other piece of paper back and forth until the image looks best. What you are seeing is not just a dot of light coming through the hole, but an actual image of the Sun!
Experiment by making your holes larger or smaller. What happens to the image? What do you think would happen if you punched a thousand holes in your paper, and you put little lenses in front of each hole to refract (e.g. bend) the solar images to all fall on top of each other. What do you think you'd see? In fact, optical telescopes can be thought of as a collection of millions of "pinhole" images all focused together in one place!
darkbake
reply to post by cheesy
Death from comet ISON? It could possibly mark the beginning of World War III - not everyone has to die though, but it might be a bit harder to make it than usual. I wonder how bright it is going to be? I checked it out, and it could be as bright as the moon when it nears the sun, but from what I read, it is going to be so close to the sun at that point that it would be hard to see -
However, if this happens, try making a pinhole camera. Check this out.
You can easily and safely observe the Sun by projecting it through a tiny hole onto a white sheet of paper. This simple device is called a "pinhole camera". You'll need:
2 sheets of stiff white paper
A pin
A sunny day
Perhaps a friend to help
With the pin, punch a hole in the center of one of your pieces of paper. Go outside, hold the paper up and aim the hole at the Sun. (Don't look at the Sun either through the hole or in any other way! ) Now, find the image of the Sun which comes through the hole. Move your other piece of paper back and forth until the image looks best. What you are seeing is not just a dot of light coming through the hole, but an actual image of the Sun!
Experiment by making your holes larger or smaller. What happens to the image? What do you think would happen if you punched a thousand holes in your paper, and you put little lenses in front of each hole to refract (e.g. bend) the solar images to all fall on top of each other. What do you think you'd see? In fact, optical telescopes can be thought of as a collection of millions of "pinhole" images all focused together in one place!
Solar Center - Projecting the Sun
This one looks fun though, meanwhile, especially if you want to have a camera for other purposes cheesy!edit on 16-9-2013 by darkbake because: (no reason given)
cheesy
reply to post by Arken
Tq! Mr.Arken!
very strange vatican Look into this ISON also..why they so Curious..why Not Official From Nasa Or Goverment Site..
onehuman
I am the DOT in the eye of I-son