B Is Anti-Gravity a Reality or Just a Concept?

[Stephanus]

Dear PF Forum,
I've been wondering lately about anti gravity.
I read anti matter and came across this:
https://en.wikipedia.org/wiki/Gravitational_interaction_of_antimatter

And I'm curious to now.
Is there really an anti gravity?
And I've read this wiki entry:
https://en.wikipedia.org/wiki/Anti-gravity

Anti-gravity is an idea of creating a place or object that is free from the force of gravity. It does not refer to the lack of weight under gravity experienced in free fall or orbit, or to balancing the force of gravity with some other force, such as electromagnetism or aerodynamic lift

Is it true, or is just an idea?I can "imagine" repulsion as opposed to attraction, such as positive charge vs positive charge.
But gravity is not a force of attraction is it? Or it is?
It's just a curvature in space time, right?
And why would some particle, either matter or matter "realizes" that there's something attracts them. Wouldn't all they "know" is that they have to follow the shortest route in space time?

Or perhaps anti matter won't be attracted by gravity created by anti matter? This, I don't have any idea what I type.
And supposed that above is true, which I really, really don't think it is, so what about black hole made from matter, wouldn't it be different by the one made from anti matter? Which I know that once it becomes a black whole, it doesn't matter (or anti matter ?) that it comes from matter or anti matter.

Thanks for enlighten me.

 

[Charles Kottler]

To the best of my knowledge, this is science fiction and belongs in the same category as perpetual motion machines, physical teleportation and time travel.

Given the huge potential uses if it was possible, there have been several attempts over the years, with some brave(?) scientists dedicating (sacrificing?) their careers to the idea:
http://www.huffingtonpost.com/benjamin-t-solomon/hondas-gravity-modification-research_b_7531260.html

 

[russ_watters]

Agreed; not science. Thread closed.