Tech Republic – A spinning hollow circle is a great way to suggest the passing of time in a PowerPoint show. “Susan Harkins shows you how to make this simple animation. I’ve been seeing a lot of the blue churning circle on streaming sites. Instead of thinking about how to improve my internet speed, I began to create the effect in Microsoft PowerPoint in my head. It’s extremely simple and a great way to suggest the passage of time. In this PowerPoint tutorial, I’ll show you how to use a gradient fill to make a hollow circle spin. The remarkable thing about this technique is that it requires only one shape and one animation..”