Recent content by rolls

With sound you can create out of phase signals and they cancel out, this is not possible with light as it does not interact like sound does. If it was possible to create two light sources in that were exactly 180 degrees out of phase with each other and aim them at a common point (eg an...

The only thing I ever disagreed with was the tone of LOOK AT ME BIGNOTING MYSELF ON A FORUM WHERE SOMEONE IS TRYING TO LEARN I have 5 years experience working as a control systems engineer, I'm not a moron, I just have had literally zero experience working with AC systems or...

Yes that is what the sense wire is for.

From what I read it is the opposite? Either way, tie it to whatever voltage would cause it to send an over current to the regulator/battery.

I know the potential of the car to the actual planet doesn't matter, it has nothing to do with it, it was just something I was curious about. I came here asking a question about why an alternator doesn't over charge a battery, and what might happen if it did. I have since looked up how an...

Yes I do, it is your 0v source, eg Earth (the actual ground) or a floating ground, the chassis of a device which may actually be quite different in voltage to other grounds. I specified the two different places, the earth, the car, the + rail?? I now know the answer but my question was...

I understand the basics but I am a bit lost on what happens in this example. In a car we have an alternator that charges the battery, if the battery is charged to stop it overvolting the regulator essentially shorts power to ground via SCRs (correct me if I'm wrong but this is my understanding)...

http://sploid.gizmodo.com/this-mind-bending-machine-completes-one-turn-every-2-3-1457516789 So I read the article above and it gave me an idea, I want to find out if it is possible to build this machine, but with a reverse gear set on the other side of the concrete that makes it spin back up to...

Thanks but read up, I am now learned.

I think there are lots of negative connotations with "big misunderstanding to begin with". I personally have studied engineering but never as anything to do with the universe, spacetime or anything above first year physics so I probably have a better grasp than a lot of the population but it was...

Cool, well this has been one big learning experience for me. Thanks guys.

Yep the milky way is like my description, however I was talking about the entire universe. Perhaps my question would be better phrased "Is there an effective life to our galaxy" because our galaxy is indeed like a candle in space where the emissions will leave and never come back, however all...

This is pretty much what I was imagining. Thanks for that, explains why my question made no sense to anyone :p So space is expanding, not that the matter in it is accelerating away on its own accord, the space it is within is expanding. That makes more sense to me. So does this mean that if...

I did not mean to imply there would be an end, just a point where the energy is so sparse it is as if the universe has died, you could define some artificial limit where it is classed as dead if you like. Edge was the wrong word, I don't mean an actual edge, I mean the matter that is furthest...

Let me give an example, the universe is an infinitely large 3d area, all the matter is spread out in this 3d area. If you were to take the two particles that were the largest distance apart and draw a line between them, the midpoint would be the "centre" for my discussion. So all the matter in...