Readers in North America who have been hiding under rocks, there’s a total solar eclipse headed our way on August 21. DO NOT look at a solar eclipse directly. You will go blind.
Watching the Eclipse Safely
Instead, you’ll need to either buy some eclipse glasses (which I hear are in short supply), or make a pinhole projector. Making a pinhole projector will take some advance planning, but not much. Fifteen minutes should do it.
How to make a pinhole projector in 15 minutes or less, using stuff you have at home
Lots of other people have posted instructions on the web for how to make one of these, so I’m not going to duplicate their effort. Instead, I’ll just share some options:
- NASA’s instructions for turning a cereal box into a pinhole projector
- The Exploratorium’s version. In addition to pinhole projectors, the Exploratorium has a couple of tricks for making quick-and-dirty viewers in the field on the fly.
- How to make a pinhole projector out of two pieces of paper
- Top 7 Must-See Sky Events in 2017 (National Geographic)
- Eclipse Day Timeline Coast to Coast: When will you see the total solar eclipse? (AccuWeather)