To be clear: gravity absolutely does exist on FE. To claim otherwise would be to argue that we're currently all floating aimlessly. You might be referring to gravitation.

But hey, your question is obvious, and so is the answer: Universal Acceleration. Since the Equivalence Principle holds, the two are locally indistinguishable.

You would have known this if you simply took the time to familiarise yourself with FET - it would have taken much less time than you spent thoroughly documenting trivial concepts like gravity batteries.

No, I’m talking about gravity. The force between the earth and objects near it’s surface. The difference between flat earth gravity and round earth gravity, of course, is that flat earth gravity isn’t dependent on the mass of an object or its distance from the earth.

The operative phrase in the definition of the equivalence principle is “locally indistinguishable”. In a large enough area the effects are distinguishable, which is why I don’t believe it applies here or would explain where the energy stored in a gravity battery comes from.

Here’s why. The formula for gravitational potential energy is m*g*h.

• The strength of the force of round earth gravity on an object is proportional to its mass. Flat earth gravity, or universal acceleration, isn’t dependent on the mass of an object. The strength of Earth’s gravitational field is 9.8N/kg. This means that for each kg of mass, an object will experience 9.8 N of force. The strength of flat earth gravity is the same on any object, regardless of its mass.

• And height wouldn’t be a factor either. Universal acceleration would have the same effect on the battery whether it was lifted 100 ft. Or a 1000 ft.

• the “g” in the formula means the

*acceleration* due to gravity. Acceleration is a vector, It has

*direction* and magnitude. The direction of acceleration due to flat earth gravity is opposite that of acceleration due to round earth gravity, so the “g” in the formula would have to be

**-g.**Is short, the formula won’t work. If the earth were accelerating up, the amount of potential energy wouldn’t be what you’d expect from the formula. That’s a simple way to distinguish between accelerating up and being in a gravitational field. The equivalence principle wouldn’t apply because the space being tested isn’t small enough to be considered “local”.