Making an eclipse viewer with a cereal box

  Cereal Box Eclipse Viewer More eclipse viewing techniques from NASA here KXAN Eclipse Page Looking directly at the sun is extremely dangerous, damage to the retina occurs in a few seconds and is not reversible. During a solar eclipse (moon blocking the sun) it is very tempting to look directly at this event, doing so usually results in eye damage. The event can be safely viewed by looking at a projected image of the sun. A small hole in a piece of foil acts much like a lense, creating an image.  A device that uses a small hole to…