Introduction 00:10 Initial setting 00:50 Create Projection 01:50 Create light rays 02:21 Adjust the Blur of the Projection ...

In this video, learn how to make a game projector for smartphones using light bulbs. Follow our step-by-step guide to ...

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 ...