I can’t find that picture (it was anothet textbook cover probably) but imagine the students gear as a long cylindrical gear, and the two other as shorter gears, so when you move say the parents gear it would move the students gear and that in turn will move the teachers gear and it would look fine from the side but looks impossible from the front
Is there a way to arrange three gears in a way that won’t lock up (maybe in a line)
Any wat in which 1 and 3 are not in contact with each other. Lines work. 2 being double thickness and 1 and 3 having depth separation works.
Gears are really simple and absolutely something more people should understand
Making the 2 smaller ones not touch each other or one of the small ones not touching with the big one would do it
I can’t find that picture (it was anothet textbook cover probably) but imagine the students gear as a long cylindrical gear, and the two other as shorter gears, so when you move say the parents gear it would move the students gear and that in turn will move the teachers gear and it would look fine from the side but looks impossible from the front