I don't have to disprove gravity.
There are electrostatic forces, magnetic forces and gravitational forces.
Electricity and magnetism interact with each other, gravity doesn't with any of them.
think about that, all three are controlling movement, but gravity doesn't interact with them, but Electricity and magnetism do interact, just think how a magnets works for a second, now think about gravity, gravity is magnetism. there made something up that was already there to trick you. reason you speed up as you fall the same reason magnet speed up as they get closer it is magnetic hope your awake
At first, science didn't know about interaction between electricity and magnetism either.
Shocks from electric fishes were known many centuries before Christ.
Later Thales of Miletus rubbed amber and discovered static electricity.
Magnetism was also known since ancient times, but it was only occasionally used for entertainment.
(And for healing, like any other physically attractive minerals among superstitious population.)
People noticed that some ores (magnetite, for example) attract or repell each other and attract pieces of iron.
It took time to start using wires and batteries in 18th century to create electric currents and observe magnetic fields around them.
Alessandro Volta created first "true" electric battery in 1800.
Took even more time to discover that not magnetic field itself but its change can produce electric current.
It was discovered by Michael Faraday in 19th century and he described it by Faraday's Law of Induction.
On the other hand, gravity also can be treated as force field for basic calculations on Earth and in vicinity (and those calculations work well),
but Einstein's General Relativity describes gravity as distortion of space-time continuum.
Any physical body, from biggest black holes, stars and nebulas, to smallest particles will create own distortion around, as long as posesses mass.
So, gravitation acts like force field, but Einstein says it is space-time distortion.
We don't know WHY it is happening, but consequences are measurable.
Same goes for electricity and magnetism.
We don't know WHY it works, but can measure HOW and for how much.
Science develops daily, eventually we will know.