A person changes the settings on some kind of tool while he speaks in a foreign language
Two hands twist a metal stand and it gets taller, he explains what he is doing verbally.
A man turns a screw and a flashlight lifts up into the air.
A person turns a cylinder to raise a device then wipes the glass below with a finger.
a small bright light is raised upward by a  sliver device
A man is working with a metal instrument and talking about it.
Someone is showing how to adjust the level of a research lamp.
A man is seen playing with an instrument while speaking in a foreign language.
A person was rotating something to some level and removes some thing on the other side
A person is in front of their PC, with an object placed in front of it, turning it while the object raises partly.