Many people say to me the bandwidth of a continuous wave carrier cannot be zero Hertz (time domain only).  If there is bandwidth does this change with frequency.

I seem to remember reading at university that light was affected by gravity and was proven by an experiment where the sun would "bend" light allowing stars that should be obscured by the sun to be seen. I have read that photons are massless, so, is it the EM radiation that is affected by gravity and if so surely that would prove that light had mass.

I been trying to find this out online, but i've not been able to find an answer. I've seen that they have found a few new ways recently to produce entangled pairs. My question is this, whats the furthest distance that an entangled pair has been separated in the lab, but yet has still remained entangled when observed / measured?

It's occurred to me that quantum entanglement's so-called "spooky action at a distance" could be explained if the entangled particles are actually not "at a distance". That is, that there is a "0th dimension" - possibly the size of the whole universe - in which all matter is at a single point.

Has anyone explored this concept?

 Is it the reason we exist at all? Because atoms can be in more than one place at any time it is not until an atom is measured or viewed that it then takes up the position that it does, so without anything to view it an atom is in many places at the same time, do our thoughts cause this three dimensional universe we live in to exist, to be, to happen? without some sort of consciousness, a viewer, be it human or any other life form this universe would not be here, I would not be writing this and you would not be reading it. Is life just thought? And so does it gives us the ability to live in a physical form in a three dimensional world? 

I read an article in last week's New Scientist that said that if get two atomic clocks and raise one above the other, the higher one will go faster - speeding up time (albeit by a very small amount). Does this mean that by the time you die, your head is older than your feet? If so, by how much?

What were the experimental findings that led to the realisation a  superposition is not resolved until an intelligence looks at the situation ? I am "accepting" Schrodinger's cat - but as the situation is normally presented, an observer has no means of knowing that the outcome has only been determined one way or the other when he looks.

Is there a simpler practically demonstrable effect with, say, electrons or photons.

Is this just too naive a view ? Is it abstract mathematics not based on what can be observed.  

Mass is a characteristic of matter and I remember being told, sneeringly, "The word is mass, boy, not matter" when being shown Einstein's E=MC².

I was also told that matter and energy were the same thing and that it was possible to destroy matter and release energy.  Fine, but I see no reason to assume that mass, a characteristic of matter, should vanish when matter is converted. To be sure, it would be a little tricky to measure, but if the energy released did have the same mass as the matter which was converted, it would explain a few anomalies, including 'dark matter'.

Sounds implausible at first doesn't it? Here is how it might theoretically be possible. Can you prove me wrong?

Stephen Hawkings agrees it is theoreticaly possible to travel into the future by accelerating a person or object to near the speed of light. Travelling to the past however does not seem possible so that person would be permanently in the future. They would also be unable to communicate with us using current technology snce that would involve sending something into the pas which is theoretically implausible.

Here is where spooky physics might help us. When two particles are entangled and the properties of one changes the properties of the second particle change identically and instantaneously even if the particles are spatially separated. Experiments have already shown this to be true. Assume someone were to invent a pair of linked quantum channel devices. Now send one of the devices into the future just like Staphen Hawkings suggests. If the particles remain entangled would be then be able to have two way communications with someone from the future?

Specifically would an object with said increased electromagnetic bonds etc. exhibit appearances of being colder than they actually were due to the increased energy required to excite them?