One possibility is "Lab Assistant"
It is called a Sphygmomanometer.
Most commonly this person is called a "proctor."
There Is Independent Which can Be Changed and Dependent That Cannot Be Changed.
It is called the hyropolific procedure
If the person helps with equipment then they're a roadie, if the person is a fan of the band they are a groupie.
By bare wires i presume that you mean wires not in closed in a protective sheath. As an experiment wires will have to be changed around quickly to see what the results of the connection produce. Once an experiment changes status to equipment production the regulations change to safety. The customer has to be protected from electrical shock. In an electrical experiment safety has to be the responsible of the person doing the experiment.
Empiric
A teacher (also called a schoolteacher) is a person who provides education for students.
Yes, they do indeed sell camera equipment. They do not just sell cameras.
Prince Henry who was an explorer for the Portuguese was called the navigator because he was the person to invent the navigation equipment that they used to travel to Africa.
a person who hauls musical equipment from on concert to another
Answer: worshipers? Answer: Believer, follower.