a crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. the thing that i was most anxious about on this trip was the flight over the atlantic. but never for anything as tragic as grief… until now. where are you still learning and growing, as you must be? it helps that there are items that can help ease the confusion of shopping. different people respond differently, but many times, people will notice changes to their behavior, sleep patterns and physical coordination after the first session or the first few sessions. 