How to make a DIY pinhole projector for the total solar eclipse

From CNET

We are less than a week away from the first total solar eclipse in nearly four decades. If you’ve waited this long to purchase a pair of eclipse glasses in order to view the big event on August 21, then you’ve probably waited too long. Inventory is low and prices are sky high for eclipse glasses that let you safely stare directly at the sun. But fear not, you’ve got plenty of time to make a pinhole projector to view the eclipse.

pinhole-projector-materials

Matt Elliott/CNET

What you’ll need

  • Cardboard box
  • Sheet of white paper
  • Aluminum foil
  • Tape
  • Scissors
  • Pen or pencil
  • Pin or thumbtack

How to make the pinhole projector 

  • Take your box — I used a cereal box — and trace its bottom on your sheet of paper.
  • Cut out the rectangle you just traced and tape it to the bottom of the inside of your box. This will be your projection screen.
  • Close the top of the…

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