It's not too complicated, actually. First off, you've got a cylinder in here with the ice cream mixture...ah...that's milk, egg, sugar, vanilla, and whatever flavor you want. You pack ice around the outside of the cylinder and add in rock salt to lower the freezing temperature of the ice. It creates a cooling effect so the mixture freezes, but not too fast. At the same time, you have to mix it.
[He taps the crank with his knuckle.] So that requires energy going into the machine, either by manually turning this crank or by setting up an electric motor. [Electric motors are still a new and wonderful concept to him.]
What I did was install a system that'll keep the crank turning once it's been started. Anyhow, the energy transfers through here [Ginji points out a series of axles and other mechanisms.]to mesh a series of gears, which wind up turning a couple paddles inside the cylinder - which then mixes the ice cream.
[That's the simplified explanation. And all this when you could technically make ice cream in something as basic as rolling two coffee cans around.]
[Action]
[He taps the crank with his knuckle.] So that requires energy going into the machine, either by manually turning this crank or by setting up an electric motor. [Electric motors are still a new and wonderful concept to him.]
What I did was install a system that'll keep the crank turning once it's been started. Anyhow, the energy transfers through here [Ginji points out a series of axles and other mechanisms.]to mesh a series of gears, which wind up turning a couple paddles inside the cylinder - which then mixes the ice cream.
[That's the simplified explanation. And all this when you could technically make ice cream in something as basic as rolling two coffee cans around.]