Small droplets slow down and hence they measured more small drops than we did. In comic books and also technical manuals we see sequences of images laid out giving an idea of temporal progression. These visual cues to movement are increasingly being recognised by the computer graphics and HCI communities. In the scientific community the most prevalent example of embedding time into space is the graph where time is mapped directly onto one of the spatial dimensions. In a dynamic visualisation we can use time itself as part of the representation.
First time can represent the passage of time itself.
For example, we may see an animation of the movement of an object. The mapping between visualisation time and real time may not be one to one, just as spatial representations may be at various scales. Second time can represent the change in some other parameter, in effect allowing us to 'visualise' an extra dimension. An example of this are the movies generated from the 'digital human body' images. One is shown successive 2D images of different cross-sections across the body and time represents distance along the body.