How can you freeze a motion without blur? After all it could always appear to be the state of rest. As soon as you attend to create a snapshot of an evolving process you'll find yourself in the position of changing it's state by viewing it at only one point of time.
These pictures were taken in an old brick factory (Erlangen, Germany). The white dust you can see is chalk dust and extremely fine. You can walk through it as if it was air and even if its more then a few feet or a meter high you would still sink to the bottom with no real opposition. For the dust to settle it took more then 5-10 minutes before the next shot could be taken. Unfortunately the factory has been torn down completely. Thank you Verena for your assistance.