10 replies to this topic

[Bikerman]

eInfiniti, on 24 September 2010 - 08:06 AM, said:

I don't know much about quantum mechanics. Maybe I should have. Maybe I should study it in the future. I guess it is a high level of understanding of what is going on in the world, in which there is field everywhere, mass or other stuff exists as ripples in the field, ... ...

At a lower level, you would have air molecules flying around. They are extremely tiny in size. There is space, or micro voids, between the molecules. The air molecules are almost free to fly everywhere. Therefore, the micro voids change their shapes all the time. How much they change has to do with what you do to the air. Of course, quantum mechanics suggests that there are fields in those voids. Voids don't mean nothing.

There is no such thing as an air molecule. There are molecules of Nitrogen, Oxygen, CO₂ etc. I know you probably meant that, but let's try to avoid confusing other readers...

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That is the way I look at the subject. I think what is more important is that Physics as a science needs to come up with a reasonable theory about gravity. If it is a field, then we need the capability to measure whatever is in the field, not the simple fact that everything falls toward the ground. We need a way to change or remove the gravitational field on earth.

We can measure gravity very accurately. We can also calculate it, given the mass. That doesn't mean we can block or reverse it. It isn't that we don't have a theory of gravity. The problem is that we don't have a good quantum theory of gravity (ie one which described it in terms of particles).

Edited by Bikerman, 24 September 2010 - 11:10 AM.