[vissin]

Oh my! I don't wish to sound rude but this thread is definitely not for a young student looking for some serious learning. There's so much of incorrect statements here. I'm lost I don't even know from where to start.

Well, I used to be much interested in all the fundamental forces and I'd studied them well during my school days. I don't remember it all too well, but just a few points below from what I read in this thread:

1) (To answer the original question) Yes it is believed by many to be possible to artificially create gravity. The practicality of it is an altogether different story. Look at gravity as nothing more than a curving of the space-time continuum and you might just be able to imagine it (or maybe not). Gravity is also linked to velocity in some cases.

2) There has been mention of negative gravity. Although, it's all only in theory.

3) (crazy_anoop) Gravity is not only between heavenly bodies but between any two masses (including you and me). However, being a weak force it is not perceptible between you and me. There are many other stronger forces around us. If you remember the basic formula of gravitaion, G is proportional only to Masses and inversely to distance between the two masses.

4) Zero gravity is created yes. But by neutralizing gravity with some other force. Much like adding -2 to 2 to get 0 for result. (Explained by Ranvir above me)

I strongly believe that all the 4 fundamental forces be it gravity or strong or weak or electro-magnetic are somehow inter-related. I'm reminded of a quote I read by Bohr, "Physics don't tell us about what is, but what we can say to each other regarding the world around us"