Accelerated charges loose energy

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I've heard it been said many a times that an electron, which is accelerating, will lose energy via the emittion of electromagnetic waves (it produces E and H around itself ...). Why doesn't an electron moving at a constant velocity (and also poroducing E and H) also lose energy on this account.
 

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Aether
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vidmar said:
I've heard it been said many a times that an electron, which is accelerating, will lose energy via the emittion of electromagnetic waves (it produces E and H around itself ...). Why doesn't an electron moving at a constant velocity (and also poroducing E and H) also lose energy on this account.
vidmar, what have you heard happens when the electron is slowing down again?
 
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vidmar said:
Why doesn't an electron moving at a constant velocity (and also poroducing E and H) also lose energy on this account.
According to the principle of relativity (in the restricted sense), all inertial frames are equivalent for the description of the laws of nature. How do you call one electron moving and one standing still? There is no such thing in an absolute sense. If an electron is moving relative to you, it can still be standing still relative to someone else.
 

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