gears are used to transmit power and motion
Gears transmit are mechanical energy.
Gears are the main method of circular motion since the dawn of time, and a huge part in horology (which nowadays is a study of and a hobby of collecting timekeeping devices). However, you will tend to see more gears in mechanical watches than quartz watches.
Batteries.
spur gears are used because there are many things such as bicycles that cant exist without a spur gear' > gearboxes, mechanical watches, cam drives
wheel gears electricity levers mechanical advantage
oil or grease
yes
Mechanical devices mostly symbolize the parts, joints, rigid structures in it... they mostly symbilize the tough mechanical components therefore call as mechanical :)
Mechanical energy (If you use gears). Sometimes other energy
probably the samsung galaxy note by at&t
it depends on what you mean by gears, gigitty
it depends on what you mean by gears, gigitty