Excuse me beforehand if I didn't correctly quote your replies, but I'd like to answer
item after item: You see I’m not a great physicist, but have my own interpretations, so read, if it can be useful to you:
As I recall from school physics, if the object with mass, (let’s say pebble) is accelerated close to velocity of light, its mass increases infinitely…
But starting-point must be the question: has any independent object (I called it single system above) inner capability to accelerate itself, and even to the speed close to that of the light?
Definitely nope!!!
The only kind of motion for the object with mass is free fall (striving to the “rest”, and as I mentioned above even turning the heavenly bodies on their axes is passive process, caused by expansion of space), and if you need to accelerate object to the speed close to that of the light, you must apply outer force of any kind to it (fuel combustion, mechanical influence…).
Also only kind of motion for expended matter is striving to opposite direction of free fall (the word opposite is used with both: direct and figurative meaning), i.e. has behavior, radically opposite to that of the object with mass, (i.e. striving in this case is active process) so I repeat that when any object is moving with the speed close to the speed of light, it ceases to exist as solid object by turning into the form of light, i.e.
Not even any object can move with a speed of light and have mass at the same time.
Quote:
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Originally Posted by TinyTree So a photon apparently does not have any mass. However, an object with mass, emitting a photon, must lose mass according to e=mc2. Now this photon must climb out of the gravitational well of this same mass, causing a redshift of the photon, reducing its frequency. |
Yes, photon apparently has no mass, but an object with mass, emitting a photon, mustn't always lose mass: in case of single, or independent system told by you above is right (as energy of single system e=Constant=mv2, i.e. m~1/v2, i.e. for single system mass is inversely proportional to speed), but if single system is connected to any kind of generator, then mass of single system doesn’t change in process of emitting of photons, i.e. it ceases to be a single system in this case, and remains only “conductor of photons” from the generator, i.e. any single system (solitary, independent object) has its ceiling of speed and it equals to speed of light without mass, but has as well its ceiling of mass “at rest”. Quote:
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Originally Posted by TinyTree Now if this same photon is absorbed somewhere else, it increases the mass of the new object- DECREASED BY THE AMOUNT OF REDSHIFTING WHICH TOOK PLACE IN THE GRAVITATIONAL WELL.
So there it is- objects are losing mass and energy, and it is not conserved. Is it? What is going on? |
Yes, the speed of photon lessens so its mass begins to increase from zero according to the formula m=e/c2, as e must be Constant for single, or independent system (separate amount of photons), and when the speed ultimately turns into mass, the latter is added to the mass of new object. But for the whole universe, the quantity of energy of contracted matter equals to quantity of energy of expended matter, i.e. general balance is preserved, so general “preciseness” doesn’t change in any case.