On 4/13/2016 7:47 AM, DerbyDad03 wrote:


A lightening bolt is often used as a symbol to warn people about the possibility
of electrocution. I don't think that it would make a good "On" symbol. No one would
ever use the switch for fear of getting shocked.

OK, good point.


Besides, why would memorizing one type of global symbol be any easier than
memorizing another?

Really???? Simple association. If on the restrooms they used a letter
T and a letter S would you immediately know which it is? But you
quickly recognize the profile of a dress and slacks for man or woman.
You expect to see something like that any easily associate.

For a switch to be on there are other simple symbols such as the
lightbulb with the lines around the globe indicating it is on would work
as well.