Sunday, 26 January 2020

electromagnetism - Do electromagnetic fields gravitate?


It's well known that electromagnetic fields contains energy but do they gravitate ?


When we talk about the composition of the universe it's now accepted that the 74 % is dark energy , the 22 % is dark matter and then the 4 % is the rest of ordinary matter/energy that we can see or measure. Are the electromagnetic fields considered in this 4 % ?




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