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    Cool! How long have you been doing that?

    Cool! How long have you been doing that?
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    I went through the graduate sequence of Quantum A...

    I went through the graduate sequence of Quantum A and B using Quantum Mechanics by Cohen-Tannoudji, Diu and Laloe. How about you?
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    If and when you stop posting using those funky...

    If and when you stop posting using those funky letters when you spell "and" I'll respond. The longer you continue to use them the longer it will take for you to recieve your response from me. I have...
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    Keep in mind that such comments also appear in...

    Keep in mind that such comments also appear in peer reviewed physics journals too. There was even article in Scientific American about superluminal communication, namely Faster than Light?, Raymond...
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    I did some reading on this subject in a...

    I did some reading on this subject in a psychology text that I have. It states that it’s a complicated issue and depends on perception. I also learned the difference between two different people to...
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    Why does that matter? Suppose it was you. Could...

    Why does that matter? Suppose it was you. Could you go on with moderate to severe pain which never ended?

    Yes. They have things called a morphine pump which is surgically implanted and gives...
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    I have no idea what that means. I don't even...

    I have no idea what that means. I don't even recognize the word between "mean" and "the".

    Please explain and be clearer. Thank you.
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    Doh! What a goof I made! Thanks for correcting me...

    Doh! What a goof I made! Thanks for correcting me mvb!
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    Hello Chris. A warm welcome to the forum to you!...

    Hello Chris. A warm welcome to the forum to you! :)
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    Yes. The term neutral in EM means not...

    Yes. The term neutral in EM means not electrically charged. See Neutral - Definition and More from the Free Merriam-Webster Dictionary
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    I assume that is a comment on what I just said....

    I assume that is a comment on what I just said. Note that when one uses the term "then" it is usually the result of an arguement, i.e. if A then B. I don't know what you're referring to since you...
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    I was doing some reading in this area and have...

    I was doing some reading in this area and have come to learn that one of the main problems is that they're not sure how much space and time should go together. People often mistake relativity as...
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    Ethical question

    Suppose a man has a herniated disk and is living with a pain level of a constant 8 on scale from one to ten. The doctor refuses to prescribe pain medication claiming that he might abuse it. The man...
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    I find it hard to believe he said that. Where is...

    I find it hard to believe he said that. Where is this video located?
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    For the object to be a black hole all the matter...

    For the object to be a black hole all the matter must be contained within a surface defined by the Schwarzchild radius. Changing frames won't do that even though the gravitational field of the body...
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    Welcome! :) You’re assuming that time began...

    Welcome! :)


    You’re assuming that time began when the big bang occurred. However there is no event in the big bang cosmology which is actually called “the big bang.” That seems to be a common...
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    I don't understand. The same can be said of QFT...

    I don't understand. The same can be said of QFT and special relativity, can't it? Are they incompatible too?
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    You're associating the non-vanishing of the...

    You're associating the non-vanishing of the Christoffel symbols with the non-vanishing of the Riemann tensor. Why?

    Consider the most trival and easiest of examples: Evaluate the Christoffel...
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    Wow! I am sincerely impressed. In almost all...

    Wow! I am sincerely impressed. In almost all cases Iíve ever seen, when I proven someone wrong on this or a related issue they either insulted me, backpedaled or simply refused to admit reality. Your...
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    Okay. I'm confused as to where this "Not looking...

    Okay. I'm confused as to where this "Not looking for a fight" thing came from in the first place, but I guess it doesn't matter. Oh well.

    The metric for a uniform gravitational field is, according...
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    Whoa! Where did this come from? I'm not sure why...

    Whoa! Where did this come from? I'm not sure why you felt that you needed to say this but I'm going to stop here until we agree that this is but a mere friendly conversation about general relativity...
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    What I said is precisely correct. That is...

    What I said is precisely correct.


    That is quite incorrect. Nothing personal but I think you may perhaps have a misconception of the gravitational field and its relationship to spacetime...
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    Sorry about that. I'll try to be more precise. ...

    Sorry about that. I'll try to be more precise.


    Yes. It is well defined and cleary described by general relativity. What I was talking about is why matter curves spacetime. We know how it does...
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    I disagree. When one tries to use rest mass in...

    I disagree. When one tries to use rest mass in oder to avoid one set of confusing questions all that is done is to introduce another set of confusion questions. If one thinks in terms of rest mass...
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    Please post where he his book he gives this...

    Please post where he his book he gives this number.
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