This first question of mine is about momentum? And opposite forses. Lets think we have two batteries or something similar spinning in space like in carusel structure. And the batteries are athe more spinning end. First the batteries are empty and we start loading the first battery. So em i wrong that now this battery weight goes up? And what happens to this spinning thing And what happens when now we move the energy to this second battery from this first one? I ask this because there is suppoust to be any momentum but maybe a change in spin axix or not? So how the Newtons momentum should understand in electric changes? And the second question of mine is this. If we make a electromagnetic field and we alter this field by other field like some emitter or like. And this first field is at rapid on and of pulse can we make momentum? So if we think some kind of vehicle and so can we move it in this field in space or can we move this field for momentum? If someone can give me some basic real answer I would be happy!