John J....
Actually... doing just that would work... not very well.. but it would produce movement... although.. it would likely be in reverse. HAHAHA
the power that drives the fan would produce force on the boat, if you could capture all the air from the fan in the sail, it would cancel itself out, but you can't catch it all.. and therefor you will move with the fan
2 marbles in space, you toss one into the other, and the energy would transfer and the other marble would move.
If people jumping did produce enough force to equal that of the earth's mass, and the mass of the earth and the jumpers could retain their shape under such forces, the earth wouldn't move very far... and it would have to to cause a noticable effect... it would have to move the earth far enough to be effected by jupiter's gravity, which would slow the orbit of the earth down, causeing it to fall into the sun.... (or at least to break up into the asteroid belt and no longer be a planet... or mabe to fall into jupiter) Either way, it wouldn't be good ^^
Actually... doing just that would work... not very well.. but it would produce movement... although.. it would likely be in reverse. HAHAHA
the power that drives the fan would produce force on the boat, if you could capture all the air from the fan in the sail, it would cancel itself out, but you can't catch it all.. and therefor you will move with the fan
2 marbles in space, you toss one into the other, and the energy would transfer and the other marble would move.
If people jumping did produce enough force to equal that of the earth's mass, and the mass of the earth and the jumpers could retain their shape under such forces, the earth wouldn't move very far... and it would have to to cause a noticable effect... it would have to move the earth far enough to be effected by jupiter's gravity, which would slow the orbit of the earth down, causeing it to fall into the sun.... (or at least to break up into the asteroid belt and no longer be a planet... or mabe to fall into jupiter) Either way, it wouldn't be good ^^