I can point you guys in the right direction but I want to ask you first what Gravity means and what it will do to this planet. What you seek changes every aspect of life. This doesn't just give you a flying car. What gravity does in space is something you might not be ready for. Once you learn how gravity works it explains the ever expansion we see and can't explain by the big bang, you lose the Biggs boson because you also find out where gravity is being birthed. Another issue that arrives is once you find out what it takes to make gravity you discover there are already devices in existence that are banned by your planet. In a perfect world this would be great but what we don't live there. Shutting down ever coal, oil, and gas factory in the world is not that great of a thing. We're talking hundreds of thousands of lives being sacrificed if you do this wrong. Sending the world back to the dark ages basically because of a colapse in the social and economic structure. You ever wonder for a species that's as old as our with evidence of the past having tech we desire why we don't have this stuff today?
Is there really something called "gravity"? IMHO if the solar/planetary systems work the way they say, the gravity must be working as a rubber band.
The further a planet gets from it's sun, the more tension there is in such "rubber band" between that planet and the sun and this would then cause the planet to come back and revolve around the sun. Isn't it like that?
They say, gravity is of magnetic nature, but how could that be? We all know that magnetic attraction loses the force with the distance significantly. Should't it be that as a planet gets further away from sun, the gravitational force is weaker and weaker and the planet would escape the system?
Unless I'm looking at it wrong, and you're an alien asking what's banned on your planet... Then I presume you and him have some better knowledge of said planet than I do. And it's apparently complex and bureaucratic technology laws. Which is possible, I'm fairly smart, but not exactly what you would call, 'experienced in cultural diversity.'
On a less serious note, aliens because the entire first paragraph smacks of bad grammar, a twinge of paranoia, and what reads like a bad youtube video from one of Alex Jones' so called 'field experts.' I despise that man...
For example, quoted; "We're talking hundreds of thousands of lives being sacrificed if you do this wrong." That's a bold statement, with absolutely no logical proof to back it up, and even worse, who is making the claims? It's fallacy.
I prefer not to dignify this type of illogical and mildly ignorant thinking with a dignified response.
But since you asked for one, I would say light is gravity, err what I said above.
In the beginning, light. Ed ends with light in MC for a reason. Because it all begins with light, and ed's M.O. is to mirror and reverse things.