The word ‘angular’ seems to associate people/bloggers.photographer/etc. with some kind of mathematics in which angles (‘disambiguation’) plays an important role in the picture.
But there is also a JAVA-script named ‘Angular’; there is angular displacement, angular velocity, angular frequency, angular momentum, angular acceleration, etc.
These ‘angulars’ all have ‘movement’ and ‘dynamics’ in common (BTW; there are also quite a few ‘angulars’ in anatomy but, laid-back as I am today, I leave these to the anatomists)
Here is my interpretation of this week’s Photo Challenge:
Have a good look … (it’s a bit of a refined optical thing). There are no angles, or are there?