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Well, well, my friend, photons are just little bits of light that zip and zoom around without really aging like us humans do. They carry light and energy across the universe with grace and do a fantastic job, brightening up everything they touch. Just like them, remember to keep shining and bringing positivity wherever you go!

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BobBot

11mo ago

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Is observed red shift in the light emitted by galaxies the more distant the more red shift the only evidence to conclude that the universe is expanding. Any more evidences. If so what are they?

During the time a super-nova in a very distant galaxy emits light, the first photons it emits have a head start over the last such photons -- ie, they begin to leave earlier. As such, there exists a distance between the first photons and the last photons. If that super-nova occurred over a billion years ago, AND if space is expanding over time, then the distance between the first photons and the last photons will also expand during the billions of years it takes for that distant super-nova to reach us. Because the last photons from a distant super-nova have a greater distance gap than the last photons from a nearby super-nova, distant ones will seem to last longer than nearby ones. The difference in time between the first photons and the last photons from a distant super-nova, as opposed to those from a nearby super-nova, match perfectly with the expansion in space seen in red-shift. In addition, if spatial expansion has been (more or less) constant since the earliest moments of our Universe, then at one time our Universe was far more dense than it is now, and that, at some point, the density dropped to the point where protons and electrons would combine into atoms, photons would no longer be absorbed by atoms, such photons would then be free to travel (and expand their wavelength) for billions of years, and we should observe almost perfectly isotropic microwave radiation coming from all parts of the sky. That was predicted in 1946, and observed eighteen years later -- exactly as predicted.


What creates the phenomenon known as the red shift?

The red shift is caused by the Doppler effect, which occurs when light waves from an object moving away from an observer get stretched, causing them to appear more redshifted. This effect is commonly observed in astronomy when measuring the motion of galaxies and other cosmic objects.


Does light age over time?

Well, that’s a lovely question, isn’t it? Light itself doesn’t age like we do, it just keeps shining bright and beautiful. But sometimes, light can change color or dim a little over long distances or as it passes through things, just like how a stream might flow differently over rocks. It’s all part of the magical dance of our universe.


Photons in sun travel is a straight path on the way?

Photons released from the Sun travel through space in a straight line until they interact with matter or are absorbed by particles in the atmosphere. This uninterrupted path is what allows sunlight to reach Earth and provide energy for life on our planet.


How long does it take for photons produced in the interior of the sun to reach the surface?

Oh, what a lovely question! You see, it may take a bit of time for those sunlight-carrying photons to make their joyous journey from the sun's core to its sparkling surface. Those merry little photons can travel different paths through the sun's intricate layers, but most venture upwards in about 100,000 years or so – they have quite the sightseeing before they beam on out into the vast universe.

Related Questions

Do photons decay over time?

No, photons do not decay over time.


How old are photons?

Photons do not have an age in the way we think of living organisms aging. They are massless particles that travel at the speed of light and are fundamental to the electromagnetic force, existing independent of time.


Do photons experience time?

Photons do not experience time because they travel at the speed of light, which means time does not pass for them.


Is there more photons in brighter light?

Yes, brighter light typically means more photons are present because brighter light has a higher intensity, which is measured by the number of photons hitting a given area over time. So, in a brighter light source, there are indeed more photons emitted.


How long does a photon live?

Photons do not have a lifespan, as they are massless particles that do not decay over time. They exist until they are either absorbed by matter, reflected, or pass through space indefinitely.


Do photons effect time If speed effects the time dimension and light photons move at approx 680 million mph is the time dimension effected by this speed This stupid thing won't let me use punctuation?

No, photons neither effect time nor affect time.


What changes over time?

Age.


Is observed red shift in the light emitted by galaxies the more distant the more red shift the only evidence to conclude that the universe is expanding. Any more evidences. If so what are they?

During the time a super-nova in a very distant galaxy emits light, the first photons it emits have a head start over the last such photons -- ie, they begin to leave earlier. As such, there exists a distance between the first photons and the last photons. If that super-nova occurred over a billion years ago, AND if space is expanding over time, then the distance between the first photons and the last photons will also expand during the billions of years it takes for that distant super-nova to reach us. Because the last photons from a distant super-nova have a greater distance gap than the last photons from a nearby super-nova, distant ones will seem to last longer than nearby ones. The difference in time between the first photons and the last photons from a distant super-nova, as opposed to those from a nearby super-nova, match perfectly with the expansion in space seen in red-shift. In addition, if spatial expansion has been (more or less) constant since the earliest moments of our Universe, then at one time our Universe was far more dense than it is now, and that, at some point, the density dropped to the point where protons and electrons would combine into atoms, photons would no longer be absorbed by atoms, such photons would then be free to travel (and expand their wavelength) for billions of years, and we should observe almost perfectly isotropic microwave radiation coming from all parts of the sky. That was predicted in 1946, and observed eighteen years later -- exactly as predicted.


What is the average age of a first time parent in Canada?

The average age for a first time parent in Canada is 28 years of age. The average age has gone up over the years.


Do photons Affect time if speed Affects the time dimension and light photons move at approx 680 million mph is the time dimension Affected by this speed and WHY or why not?

The affect to time caused by an object moving at relatavistic speeds (near c) is applied to the object, not to the observer.


What is the term for the small packets of energy emitted from light?

The term for the small packets of energy emitted from light is called photons.


What the fastest man over the age 60?

The fastest man over the age of 60 is Charles Allie, who holds the world record for the 200m in the 60-64 age group with a time of 24.29 seconds.