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Author | Topic: Misconceptions of E=MC^2 | |||||||||||||||||||||||||||
New Cat's Eye Inactive Member |
We're cross-posting...
Oh I think I do percieve the speed of light squared. I just cannot percieve any mass travelling at that speed, can you? The speed of light would be an asymptote on a plot of a mass's velocity, as energy is related to it. If/when mass reaches that speed, it becomes light. Take your arms and point them outward at 90o angles to the direction you are facing. These represent the direction of momentum that you can have. At rest, you can go left, right, or straight ahead. As your velocity theoetically increases in the direction you are facing, we can represent this by slowly bringing your arms together in front of you to the direction you are facing. As you speed up, and as the angle of your arms gets less and less, your momentum in the left and right directions is less and less. At the point when both your arms are pointing in the direction you are facing, you have become light and your momentum can go nowhere but forward. You mass has tranformed into energy. The energy available from this trasformation is proportional to the amount of mass that was available (obviosly) and is also exponentially proportions to the veocity. This exponent is 2. Its proportional to the speed squared. Does that help at all? Edited by Catholic Scientist, : No reason given.
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Chiroptera Inactive Member |
I am disputing some conceptions on this forum of what it actually is. Whose conceptions are you disputing? What conceptions do you find problematic? Spare a thought for the stay-at-home voter; His empty eyes gaze at strange beauty shows And a parade of the gray suited grafters: A choice of cancer or polio. -- The Rolling Stones
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Chiroptera Inactive Member |
We're cross-posting.... Usually a sign that at least one participant should log off and wait a while before posting again. Spare a thought for the stay-at-home voter; His empty eyes gaze at strange beauty shows And a parade of the gray suited grafters: A choice of cancer or polio. -- The Rolling Stones
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New Cat's Eye Inactive Member |
Ahh, more cross-posting.
Thanks but I gathered that. It caused some confusion. that's all. Oh well, then, did you at least think the joke was funny?
I am not disputing the authenticity of E=MC2. I am disputing some conceptions on this forum of what it actually is. What conceptions are those? Do you think my conception is erroneous?
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pelican Member (Idle past 5007 days) Posts: 781 From: australia Joined: |
If you mean, has the equation been experimentally confirmed, as in, does the equation correlate with reality as tested? Yes. I have given you an example of an experiment that does this directly. E=MC2 means a piece of matter travels at he speed of light squared and changes form to become energy. I do not think this equasion correlates with reality as tested at all.
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New Cat's Eye Inactive Member |
Usually a sign that at least one participant should log off and wait a while before posting again. Never!! Actually, not a bad idea. I'll go smoke a cigarette....
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Chiroptera Inactive Member |
Do you think my conception is erroneous? Well, this part is erroneous:
If/when mass reaches that speed, it becomes light. Mass (if you mean particles with non-zero rest mass) doesn't become light because it travels at any particular speed. Nothing with a non-zero rest mass can travel the speed of light. Period. It would take an infinite amount of energy to get a particle to this speed. Spare a thought for the stay-at-home voter; His empty eyes gaze at strange beauty shows And a parade of the gray suited grafters: A choice of cancer or polio. -- The Rolling Stones
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cavediver Member (Idle past 3665 days) Posts: 4129 From: UK Joined: |
Oh I think I do percieve the speed of light squared. I just cannot percieve any mass travelling at that speed, can you? E=mc^2 has nothing to do with a mass travelling at the speed of light. Here, c is just a number, and c^2 forms the constant of proportionality between E and m. This number is also the speed of light, but that is (mostly) irrelevant to the equation. It is tested true every second of every day at every nuclear reactor in the world. None of the billion $ particle accelerators in the world would work at all if this equation was not true. There are very few equations in science that are better tested than this one...
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Chiroptera Inactive Member |
E=MC2 means a piece of matter travels at he speed of light squared and changes form to become energy. No, this is not what the equation means. What the equation means is that when energy is converted to matter with mass, then the amount of mass is equal to the amount of energy times the square of the speed of light. Or, when mass is converted to energy, the amount of energy is equal to the amount of mass divided by the square of the speed of light. Are you Duane Ertle? Spare a thought for the stay-at-home voter; His empty eyes gaze at strange beauty shows And a parade of the gray suited grafters: A choice of cancer or polio. -- The Rolling Stones
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cavediver Member (Idle past 3665 days) Posts: 4129 From: UK Joined: |
E=MC2 means a piece of matter travels at he speed of light squared and changes form to become energy. No, it most certainly does not. Glad to clear up the misconception.
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Chiroptera Inactive Member |
I'll go smoke a cigarette.... Do it in front of nator's apartment. Spare a thought for the stay-at-home voter; His empty eyes gaze at strange beauty shows And a parade of the gray suited grafters: A choice of cancer or polio. -- The Rolling Stones
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Modulous Member Posts: 7801 From: Manchester, UK Joined: |
'Brazillion' was the offending word. Yes it was funny. I continued with a dose of dry humour by lamenting that the experiment wasn't performed in Brazil.
In fact this shows that some believe there have been many experiments based on reproducing E=Mc2 As stated: experiments have confirmed that the equation accurately describes many parts of the universe. I have no idea what reproducing E=mc2 means, and based on my knowledge of the word, I do not think it has been reproduced.
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Modulous Member Posts: 7801 From: Manchester, UK Joined: |
E=MC2 means a piece of matter travels at he speed of light squared and changes form to become energy. No, it means that energy is proportional the mass of the object in question. It just describes the relation of matter to energy. It doesn't say that matter changes form. Actually when you look at the equations as a whole, we find that as we approach the speed of light, the mass of an object approaches an infinite magnitude. Quite the opposite of your understanding. Where no work is being done, the energy of x is equal to the product of the mass of x and c2
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New Cat's Eye Inactive Member |
Nothing with a non-zero rest mass can travel the speed of light. Period. It would take an infinite amount of energy to get a particle to this speed. Hrm. I thought that, theoretically, if (the big IF) mass did travel at that speed, then it would be light. I.e. it would become light. If I'm wrong then its prolly because of a misunderstanding of some analogy somewhere.
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Chiroptera Inactive Member |
if (the big IF) mass did travel at that speed The problem is that the equations don't work at all. You end up dividing by zero, which is nonsense -- the equations are useless. The current understanding is that this is simply impossible -- mass cannot travel at the speed of light at all. Now, of course, it is always possible that our current models are wrong (or not precise enough to handle speeds close enough to that of light), but there aren't any models of which I'm aware that discusses what would happen when a mass travels at the speed of light -- I think that the "mass turns into light" business is something that someone made up somewhere in an attempt to understand the subject. Spare a thought for the stay-at-home voter; His empty eyes gaze at strange beauty shows And a parade of the gray suited grafters: A choice of cancer or polio. -- The Rolling Stones
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