pictured there is a nob that can be turned to one of four numbers, 0
through 3. The affordances of this control interface are that we
associate higher numbers with faster speed so it is clear that setting 3
should be the fastest fan speed while 0 means that the fan is off. The
nob also has a bump on the end closest to the numbers signifying that
this end should be the one pointing to the numbers and a a result the
clock-wise motion to turn the fan on is understood.
-Gabe Schwartz
No comments:
Post a Comment