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Originally posted by UnixFE
@Why is there light from distant stars at any given timeframe. Of cause a star produces billions photons a second but is thos really enough for any possible observer millions of lightyears away.
Originally posted by UnixFE
reply to post by Ophiuchus 13
No, I want to know why there is always and anytime a photon ready to hit my eye. You can look to any star and it always is visible thus a photon from this star just hit you. I wonder why there is always light from this star. You can just make a step to the side and even there a photon is ready for you. So if there is always light at any place in the universe millions of light years away how many photons ( if they are particles) are neccessary for this. I mean think about the huge surface of a sphere with a radius of 1 million lightyears. And every millimeter is hit with a photon every millisecond? Is this really possible or would this star loose all the mass in just minutes if it sends out so many particles.
Thats why I personally believe that only a wave is expanding through the universe that only converts into a particle if it reach some other object but that raises another question. Why won't this expanding wave-sphere collapse if it hit the first object in space, why can it expand for million years passing through several other objects just to collapse into a particle if it reach my eye?
Originally posted by UnixFE
Of cause a star produces billions photons a second but is thos really enough for any possible observer millions of lightyears away.
Originally posted by UnixFE
Blinking as there is a short timeframe without light/photon reaching the detector.
Originally posted by UnixFE
reply to post by tangonine
That is what I thought. It can't be a particle as there won't be enough of it from really distant stars (not or sun although the problem would be the same). So if it is a wave like any other the source will loose energy if this wave is received by something capable of absorbing this frequency.
If there is another receiver between you and the sender you will get what is left over. That's why it is forbidden to power your device from radio waves as you would 'drain' the enery and people behind you can't listen to this radio station.
I just don't understand if the wave expands like a sphere or of this wave is still a directional wave similar to a particle. If it is directional we have the same problem just with billions of waves neccessary. If it expands like a sphere like for example the radio wave is it possible to drain this energy so some extraterestial a few planets behind me won't see any light just like it's possible with radio waves? Assuming that we can drain billions watt energy from a light source with a super solar cell
I'm not sure how technical you want to get with the answer to your question.
Originally posted by UnixFE
I just refered to my eyes as it was easier to describe than a detector in a lab. So this would mean stars do indeed blink if you just look close enough? Blinking as there is a short timeframe without light/photon reaching the detector.
the number of photons from the galaxy seen with the unaided eye is more like two hundred per hour, and in the telescope it is of about 350 per second