Strange

Why would it? But as you have made up the teleportation device, it is up to you (as the science fiction author) to decide whether it will make things spin or not. Vacuum has no effect on magnets.

Any velocity, actually. I don't understand the question. The direction of motion doesn't make any difference to how much time is slowed. This is irrelevant as relativity is a classical theory. Measurement doesn't;t change the outcomes. There is no known method for travelling backwards in time. (If you could, the pilot would get younger rather than age faster.)

Go on then...

That is a very silly question. Because it assumes that the default position is to believe in some random idea. It leads to obvious corollaries like: Why do you not believe in Thor? Why do you not believe in the Easter Bunny? Why do you not believe that the stars are the souls of the dead? Why do you not believe in Santa Clause? The rational default position is to not believe in something until there is evidence for it. On that basis, I see no reason to believe in Thor, or any other gods.

Not sure of the exact figures, but that sounds about right.

I would tell god to go away and bother someone else with his stupid questions.

You are not being a pain. I'm just trying to encourage you to think critically.

No. Do I really need to explain why? Really? If there is a genetic component, then that will be passed on to children. If there is an external cause, then it won't be For example, if there is a genetic disorder that means it is more likely to break a leg, then that could be passed on to your children. But if you fall off a bridge and break your leg then that will not be passed on to your children.

That is quite possible. But if there is such a genetic component then I don't see why the chances of it being passed on would depend on career choices. Do you have any evidence that working in health care causes depression? Note that there might be a higher rate of depression among people working in health care, but that doesn't;t mean that working health care causes depression. Write out 100 times: "Correlation is not causation."

This is horribly confused. Lets start with the Hubble constant which is, as you say, about 70 (km / s) / Mpc. If that were the same for all galaxies, then the the universe would NOT be expanding at an increasing rate. It would be expanding at the same rate for all galaxies, by definition. However, it turns out (surprisingly) that the rate of expansion is not the same for all galaxies. In fact the rate of expansion started increasing a few billion years ago. The radius of the observable universe is about 45 billion light years, not 13.7 billion light years. It is hard to make sense of this sentence but you seem to be saying that if the rate of expansion had changed over time then the age of the universe could be different. This ignores the fact that we can measure the rate of expansion at different times. This is how we know that the rate of expansion has started accelerating. So are the expansion rates in your table supported by evidence? This sentence is even harder to parse I'm afraid. The fact that the recessional speed of galaxies increases linearly with distance was one of the first, and the simplest, bits of evidence for the expanding universe. Can you explain why you think it isn't? (Note that it was not the most convincing evidence. That came later in the form of the CMB.) I have absolutely no idea what you are trying to say here. Why do you think the value of H should decrease for older galaxies? It is not a function of the age of galaxies. When this was the only evidence for the expansion of the universe, many other explanations were presented. Not all of these could be ruled out. Until the discovery of the CMB, and all the other evidence for the Big Bang model, at which point all the other models were discarded as they were not able to explain all the evidence.

Why do you think that working in health care increases the chance of suffering from depression? Why do you think that would affect the offspring? If there is a genetic component to depression then wouldn't Mr X would pass it on to his children whether he works as a nurse or a comedian?

Whas? Woz? Wus?

Firstly, I think it takes quite severe lifestyle or environmental factors to have any effect; things like growing up without sufficient nutrition (or too much). Things like a different choice of job won't have any effect. (Although I think extreme events like PTSD can have epigenetic effects.) And although there is some evidence that some epigenetic effects can be passed on to offspring to some extent, as far as I know that only lasts for one or two generations.

I suppose they could be measured, in principle. The frequency is too low for LIGO (which has a lower frequency of about 1 Hz, I think). I don't know how to calculate the magnitude of the waves, but obviously, because we are right here, they might be detectable. At some point, yes, I assume. (If gravity is quantised.) I have no idea at what level that would happen, though.

That looks just like the (old) Severn Bridge. The Second Severn Crossing is pretty impressive: Or is it just for structural reasons - to counter the weight of the bridge in the middle? (Not that I am suggesting the Earth is flat!)

No. "Normal" gravity is static(*). Gravitational waves are only created in specific situations, requiring a type of asymmetry, such as two massive objects orbiting one another. There are no gravitational waves involved in the gravity of the Earth or any other body. (*) OK. The Moon orbiting the Earth or the Earth orbiting the Sun will create minute gravitational waves. They are pretty much irrelevant to anything, though, because they are so all (and slow).

No. You are not reading what people say to you (or not understanding it). I wasn't talking about questions. I was talking about your repeated CLAIMS (e.g. that entanglement could be explained by a fourth dimension). These are just random stuff you make up with no basis in science. I am quite happy with your questions and will attempt to answer them if I think I have something useful to add. As such, I would prefer it if you stuck to asking questions instead of making outrageous claims.

Gravity does not depend on gravitational waves. There are no gravitational waves from the Earth but we still have gravity. But, yes, gravitational waves would be red-shifted by relative motion of the source and receiver as well as by cosmological red-shift. But this does not affect the strength of gravity from an object.

Apparently.

Apparently, I didn't know how to spell lasso ... having just written it for the first time in my life, I guess.

I was trained to always make the earth wire a little longer to reduce the risk of things like that (as well as paying attention to cable grips, etc.) My first boss insisted on using a particular make of plug that had a pillar that the wire wrapped round instead of this tiny holes that the wire gets put in. He would then make us create a little loop, like a tiny lasso, so the wire could pull loose. And the cable grips were two bits of angled plastic that couldn't be avoided.

Again, what you (or anyone else) believes about the number of dimensions or the existence of unicorns is irrelevant. I don't care if you think there are 133/4 dimensions. But if you are going to keep making these claims (which you do, repeatedly, and ad nauseam) then you need to provide some evidence. How hard is that? If there is no evidence, then feel free to hold on to your beliefs/delusions, but stop repeating them here if they are not based on science.

Gravity is not carried by waves, so there is no frequency shift involved.

So how about a photodetector at each point of interest. This can detect the light from the laser pointer and be used to trigger the display of the appropriate file.

The Earth is at zero volts. The electrical system provides an earth (or ground) wire that is guaranteed to be at zero volts. This is connected to any metal parts of the system to ensure that, in the case of a fault such as a short-circuit from the "live" (120/240V) wire, the user will not be exposed to high voltages. Instead, such a fault will cause the circuit breaker to blow.