... regardless of any possible technical problems, and then, on earth: a) someone throws an object in the air and it falls b) someone puts an object to float in a magnetic field generated by an artificial magnet that lays on earth In situation A I think the weight measured would increase as the person throws, decrease as the object falls, because of the gravitational pull that the object exerts on earth, and increase again as it touches earth and then return to the same as it was before while everything was at rest, right? But in the second situation would the weight measured decrease after the object is put to float or stay the same? Or who knows what, increase?! P.S.: this is mere curiosity, it's not about homework or anything. Thanks in advance for the answers.