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trees and plants
Hello. The questions are very basic: What are the purposes of physics? Why physics works are made? Are they to describe mathematically what can be observed in nature or should they be more abstract and describe properties derived or connected to other works in physics? Excuse me, i am a little confused about this thing in physics. For example in general relativity and quantum field theory, i read and try to memorise them but i do not know what the things i read express in nature. Thank you.