I was just wondering if anyone here knew the exact physics that the scientists used to “create” an artificial, miniature supernova in a laboratory. I heard that they could do that, and if so, could they “create” an artificial, miniature black hole, also? Could you imagine the possibilities…
But is not gravity a form of magnetism?
Since magnets can repel each other, should there not be something to repel gravity? And even if it is not, can we not use magnetism to this degree?
If I am way off base, please bear with me.
Nope…magnetism is magnetism and gravity is gravity. They are two completely separate entities. So far no one has found anything that will ‘repel’ gravity. Indeed, gravity is the only force which you cannot shield yourself from. A lead wall may shield you from magentism and other forms of energy but gravity goes right through it. I’m just guessing but I think this may be one of the problems in observing a graviton…it can’t be captured or stopped to look at one (I think the other problem is that gravitons are VERY low powered making them extremely difficult to observe).
Certainly magnetism can be used to overcome gravity. You see this in Maglev trains (trains that float on magnets). However, if you are suggesting using the earth’s magnetic field to levitate stuff I think the earth’s field is far too weak. Certainly I’ve never seen even a little magnet flip over because it was in contention with earth’s magnetic field…levitating a car or train or plane is almost certainly beyond what we could do.
Just wanted to mention that I skimmed through about a third of their paper last night. They did use many different materials.
It seems that the experiment hinged upon a Bose-Einstein Condensate being in a particular quantum state, and that they didn’t have much of an explanation for how this gravity wave was generated, thought they did indeed offer a hypothesis that had something to do with vacuum fluctuations. for not knowing what happened they sure gave quite a few equations.
It was a terribly technical paper for someone with my experience, which is zero. Still hoping you’ll come through gr8 with a Cambpell’s condensed Soup version of the paper.