Recent content by Poy

Lots of thank

Are all forces vectors? What forces do and don't conserve energy? What is the English unit of force? Its one of those little web search things, and some of those aren't so easy to find...

Doesn't it also depend on what means by a dimension? The dimensions of space and time (as far as I understand them) are very diffrent, so one could argue other 'things' define a dimension...

Shadows are not really a 2-d object, just the absence of lightover an area, a 3d area even though you can only notice the absense when it reflects off a surface. Also (correct me if I missunderstand you) I think your saying that time moves. I think it is most often believed that objects move...

It is in a slightly diffrent position because the light takes time to reach us... but like they said the quantum effects would probably be to small to make the moon appear were it is not...

I believe your somewhat write... I however think that time ans space are really so closely related that it might be counterproductive to see them as two separate things. Though it is useful to look at it as diffrent dimensions for the sake of scientific research, they really all exist together...

How does speed effect...? I was wondering, is there anything in any of the string or loop theories that says how (and indeed if) the extra 6 or so dimensions would be effected by travel close to light speed?

I know how that ussually works, but I wasn't sure in this one condition... thanks.

I think this is the right place to put this question Special relativity says light always seems to move at c. But wouldn't it (relative to you) be moving faster than c if its moving away from you and you are moving away from it? I might misundestdn something here, but if someone could clearify...

That makes sense.

My guess is that the light energy would change to the kinetic or mechanical energ, so that it gives the thing one good tug, and that is all.

I was just think about relativity, and as you move faster how distances and the amount of time seems to change as you speed up. This means that all dimensions of time (including the extra 6 from string theory that are extremely small dimensions) would seem to change as you move faster. so, I was...

The friction would slow down the moving object, so if you didn't know it slowed down due to friction, then you could assume that there was no outside force slowing it down, so that kind of disproves the law.

Well, time is relative, so as you move faster the waves seem to come more often, wouldn't they? Should probably get a second opinion on this.

Sorry, posted in the wrong area, but if some one could still tell me that would be great..