Light beams

Catching light.

 

Actually, a rope. Different strengths of vibration / rotation of the rope created different types of light patterns. I suspect these 'tight' patterns were created by high frequency vibrations, making the rope taught. But then, I'm not a physicist so the science is over my head.

 

I could have stood there for hours. I probably did.

 

(Pre-warning: there'll be more of these at some point; I took quite a few.)

Done