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Transit of Mercury: How To View it Safetly

exploratorium.edu — "Use the duct tape to seal any holes that leak light past the cardboard. Now point the binocular toward the sun while holding a piece of white cardboard about a foot behind the eyepiece. It will take a little effort to find the sun. Once you do, you can focus the binoculars to bring the sun to a sharp image."

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  • IvanB, on 10/12/2007, -0/+1Kinda ontopic: don't try and take pictures of Mars with an ordinary digital camera, unless it's very good, because you will fail like I did last year.
  • theblooms, on 10/12/2007, -0/+1This is really cool. I did this for the Venus year before last. You can also put a welding helmet on and see it that way. I have done that before, too.

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