Is this explanation of anti-gravity machines good enough?

I’m about to send off my manuscript to agents for world building and story direction feedback, but before I do that, I thought I’d ask here. <br><br>They’re called Mass Killing Processors (Mkp) and they’re basically massive devices that can be implanted into the ground that can cause a field around a planet, or moon, that can cause it to defy gravity. The device works by reversing the atomic mass of a planet (or moon, or asteroid) and then causing it to hover in place or move in any direction by adjusting the mass value of the planet. The value can be positive, negative, or zero. <br><br>The explanation for how it works in my book is basically this: <br><br>“All matter has mass, and mass is subject to the gravitational pull of other mass, such as planets. Stars. Galaxies. Galaxies have mass, but only the collective mass of their stars. The mass of the stars are what keep them in their orbits through the various mass of the other stars in the galaxies. <br><br>But what if the mass of the galaxy was the addition of the mass of all of its stars, plus the mass of the collective mass of its planets. And then its moons. And its asteroid belts, and then its comets. What if each piece of mass within a certain gravitational pull contributed to its galaxy-wide mass. Then it would be necessary to calculate the mass of all of that, stars and stars’ mass and planets’ mass and moons and etc, and add it all together to get the overall mass of the galaxy. <br><br>But I propose that all of that isn’t necessary if you were to invent a machine that held the mass of a galaxy within its programming, the machine would be able to see all the mass in the universe, and thus determine what that mass is and where it is. <br><br>Let’s say a starship, for instance. Any starship has its own mass. It’s calculated not only by the materials used to build the ship, but also by the materials that power it. <br><br>The fuel used in its engines and thrusters and life support. And that all has a mass. Not very much, of course. But still enough that it can be calculated. <br><br>You see, the galaxy has a mass. I’ve calculated it. I know what it is and where it is. I know the mass of all objects in the galaxy and I know what that mass is and where it is. <br><br>So if you were to hook up a machine to the mass of a starship, for instance, you could change the mass of its fuel. <br><br>Being that all mass requires the atoms to be powerful enough to hold the mass, if it were to lose its atomic mass, it would lose its mass. So mass must be the addition of atomic mass and then mass itself. It’s a powerful equation held in a very powerful machine. And if you could add or subtract atomic mass from the mass of the fuel, then the fuel would lose its value as a fuel. <br><br>And then you hook up the machine to the mass of the starship and then you can add or subtract the mass of the starship fuel. <br><br>Being that the mass is the combination of atomic mass and mass of the fuel, you can subtract the atomic mass from the mass and you have nothing. <br><br>And then you can configure the equation so that the mass of the ship’s fuel is negative. <br><br>This means that the fuel now has a negative value, so every time the fuel is activated the mass of the ship would grow heavier. <br><br>But if you changed that so that the mass of the fuel was now a positive value, minus the negative value, and then you subtracted the atomic mass and then changed the mass of the fuel again, you could end up with a positive value in mass and a positive value in atomic mass, so the ship would grow lighter. <br><br>And if you were to subtract the atomic mass of the ship’s fuel, and then subtract that from the ship’s mass, well then you would be able to calculate the mass of the universe that is not the mass of the ship’s fuel. <br><br>And if you were to subtract that mass, then the mass of the ship’s fuel would be zero. <br><br>So, basically, if the mass of the fuel were to be 0, and the mass of the ship could be anything, and the atomic mass of the fuel doesn’t change its mass, then you could keep subtracting the mass of the ship over and over again, and the ship would be able to fly because of the mass of the fuel, which is zero, and by continuously subtracting the ship’s mass, it will never grow any heavier. <br><br>So now the ship has no fuel, and it has zero mass, so it can travel faster and farther than any ship ever has before.” <br><br>The first part of that passage was a journal entry from an engineer and the rest of it was a speech he gave to investors. <br><br>So, is it enough? Does that make sense? I’m trying to go for a hard science fiction explanation, but I’ve held back on a lot of details so that it isn’t too confusing, and because I don’t want to give readers the blueprints to make one, haha. <br><br>I’m waiting to hear back on this before I send it off to agents. Once I get an agent, I’m definitely gonna have a physics professor go through it.