Excellent and creative art method and results Jocko!

The hot thing in some 3D computer graphics programs is having a "particle system".
Here you show a way to far exceed these systems in the real world!

In picture 2 of this thread ( also posted much larger in your cool gallery) I like the way the flour lots like particles near the back of this cool art capture, but like a textured continuous surface when closer to your camera.

Years ago we did stop motion film photos by using a camera with a open shutter setting in a dark room and making an aluminum foil switch which fired a flash on impact.

If I can, I will try to post a scan of one or teo of these older tech shoots.