In that way it does not. You can move a boat wirh a fan if you use it to blow the air away from the boat to create thrust like a plane. If you direct the fan onto the sail the force of the forward motion will be canceled out by the backwards thrust (if the sail has 100% efficiency which it does not)
Blowing a fan into the sail does work; but it’s nowhere near as efficient as normal airboats. You’re not gonna move very fast, and it takes a helluva lot of force just to go like 1/16 the speed you could if you just point the fan behind you.
The magnet thing might work the same way; but you’d need a super powerful magnet. Like probably an electromagnet. And at that point, an electric engine is just a more efficient use of the energy.
Archimedes once said something like: “Give me a big enough lever and a place to stand, and I shall move the Earth.”
The “place to stand” part is just as critical as the lever part. You gotta have something to push off of in order to move other things. This is a closed system that pushes and pulls only against itself.
Simple. The magnet weighs less than the car, so the magnet is going to be moving to the left. If the force is going to the left, that means the car can only go in reverse.
Nope, unfortunately now the car has been magnetized, and that would swap the polarity, making it move in the opposite direction, which is reverse again.
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