Creating a projector's beam is extremely simple Timestamp 00:00​ Introduction 00:10 Initial setting 00:50 Create Projection ...

The purpose of the slide projector is to expose a UV sensitive emulsion.<BR><BR>I'm using the most common Kodak model (which, by the way, just stopped production in 2005ish after many decades). I ...

If you want to view the April 8 total solar eclipse, you'll need to take some safety measures to protect your eyes.And if you don't have the right eye gear, you'll have to get creative. Here's one ...

Use a cereal box and items around the house to make a pinhole eclipse projector. &#151; -- If your approved solar eclipse glasses didn't come in time or stores near you are sold out, it's not too late ...

If you don't have solar glasses yet to watch the total eclipse happening April 8, not to worry. The good folks at NASA have an easy way you can view the eclipse by making a box pinhole projector with ...