Have you ever been inside, or wait for an elevator for quite a long while? Sorry dear, if you have; but you got the chance
Category: Engineering
Do you know, the field of science concerned with the design, development, modification and application of science and technology?
There’s a specific safety reason why restrooms have a light switch on the outside.
You’ve noticed that most bathrooms have an exterior light switch, and probably experienced the awful scenario of having the lights shut off by a passerby