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If a sun is giving off photons in every direction in space, does that not mean that all of empty space is full of photons? I know photons have no mass but that still means it is not a perfect vacuum right?
jnorman said:photons, once emitted, are not in any particular location.
DaveC426913 said:Not sure why you claim that. If the volume of space in question is enclosed by an opaque box, we can certainly say that a photon, once emitted, is inside (or, alternately, outside) the box.
Photons are particles of light. They are the smallest unit of light and have no mass or charge. They travel at the speed of light and are responsible for electromagnetic radiation.
Empty space, also known as vacuum, is the space between celestial bodies. It is not completely empty, as it contains particles and fields, such as photons, that can exist in a vacuum.
No, space is not full. It may contain particles and fields, but it is mostly empty. The amount of matter and energy in space is very small compared to the vastness of the universe.
Photons behave differently in empty space compared to other mediums. In empty space, they travel at the speed of light and do not experience any resistance. They also do not interact with each other, making them difficult to detect.
Understanding the behavior of photons in empty space is crucial for our understanding of the universe. It helps us study the properties of light and electromagnetic radiation, which are vital for many fields of science, including astronomy, physics, and telecommunications.