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epkid08
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At any interval of space, is the net density of that interval never equal to zero?
epkid08 said:At any interval of space, is the net density of that interval never equal to zero?
marcus said:Can you picture a region of space without photons? I can't.
If you put walls around, then the walls themselves must have some positive temperature and so they must be radiating thermal glow. I think some EM field must be there.
Also there is the gravitational field, if you consider that as contributing. Or perhaps that doesn't count?
Frank Wilczek has an interesting new popularization book called The Lightness of Being, that is all about the modern physics vacuum. What is going on in empty space. A Nobel laureate who can write well. Ask the local librarian to order it. Great book.
https://www.amazon.com/dp/0465003214/?tag=pfamazon01-20
epkid08 said:At any interval of space, is the net density of that interval never equal to zero?
"At any interval of space" refers to a specific point or location in a given space. It could refer to a specific distance, a specific region, or a specific location within a larger space.
"At any interval of space" is a crucial concept in scientific research. It allows scientists to study and analyze data at specific points or locations within a larger space, which can provide valuable insights and information.
One example of "at any interval of space" in action is in weather forecasting. Scientists use data collected from various locations within a larger area to make predictions and track patterns in weather conditions.
The concept of "at any interval of space" applies to various scientific fields, such as astronomy, geology, and biology. For example, astronomers use this concept to study different regions of the universe, while geologists use it to study the Earth's surface at various points.
There is no limit to the number of intervals of space that can be studied. Scientists can study data at an infinite number of points or locations within a larger space, depending on the scope and purpose of their research.