Flow display type indicating method and apparatus

A flow display type indicator for indicating a value of a predetermined physical quantity, comprising:

• an input terminal for receiving an input signal representative of a value of said predetermined physical quantity;
• flow representing image forming means for forming a flow representing image at an n number of different positions along a predetermined line, said n positions comprising first to n-th positions orderly disposed and being offset from each other, said first position defining a next position to said n-th position in a first direction, said n-th position defining a next position to said first position in a second direction opposite to said first direction;
• and
• flow representing image selecting means connected to said flow representing image forming means, for selecting said flow representing images at said first to n-th positions in one of said first and second directions depending on a polarity of a first signal received from said input terminal and at a speed in accordance with a magnitude of said first signal, in order to cause said flow representing image forming means to form the selected flow representing image.