the dynamic photos shows the movement of many ballerinas as you can see we're they moved because the affect of the blur
Bangkok Traffic by mark burban (snapmole) © . now this one you got to love, fantastic colorful long exposure light trails .
Shutter speed and photographing movement
8 seconds exposure in Oxford Street (London). If you don& know that street it& pretty crowded, on a Saturday !
Pinhole photography -- 7 Questions: Frank Machalowski On ‘Monsters,’ His Eerie Long Exposure Photos of Crowds
Abstract Photography - Koty 2 slow shutter speed with strobe?
Elizabeth Tower, also known as Big Ben, in London with a red double decker bus zooming by.
Then it's just the car's movement and the cars outside that will create the blur and not camera shake. Obviously night time would work best to record light streaks.
Another amazing motion photo by William Wadam
Intentional movement blur: A Level Photography