The discussion revolves around the applicability of Newtonian mechanics in the context of quantum mechanics and general relativity. Participants explore the reasons for the necessity of these advanced theories in explaining natural phenomena, particularly in gravity, and the implications of Lorentz transformations in special relativity.
Participants generally agree that the questions posed are too broad and that a more focused approach is necessary. However, there is no consensus on the specific nature of the questions that should be asked or the best way to approach the study of these topics.
Participants highlight the limitations of the original poster's approach, indicating a reliance on general resources without sufficient personal engagement with the material. There is an acknowledgment that the questions require a level of understanding that may not be met by casual reading.
This discussion may be useful for individuals interested in the foundational differences between classical and modern physics, as well as those seeking guidance on how to formulate effective questions in a physics forum context.
I have read mostly from pdfs about quantum mechanics, quantum field theory and general relativity. Perhaps the writers told about it in the beginning of the pdfs? I did not read something about it.Vanadium 50 said:This question is threefold - "Why do you need QM?" "Why do you need GR?" and "How does SR" work. These all require chapters of textbooks, if not entire textbooks.
What research have you done to answer this question?
Also, A-level means you want a graduate-level answer. That means you've already seen these textbooks. Which ones and what didn't you understand?
infinitely small said:I have read mostly from pdfs
Very brief answer: because classical Newtonian mechanics is not in accordance with several observations and experiments. For detailed answers you would really need to study few textbooks involving all the topics you asked about, as suggested by @Vanadium 50infinitely small said:Hello. The questions are: Why Newtonian mechanics is not applicable to quantum mechanics and more natural phenomena in gravity? So, we needed general relativity which offers a metric theory about gravity and applies to more phenomena in nature, but how is this explained that special and general relativity where needed? About the Lorentz transformations in special relativity, how did they occur? Thank you.
infinitely small said:Ok, i should better read the pdfs.
infinitely small said:So what kind of questions should i ask?
Where we can help is while you are carefully reading the textbooks and you come on specific small questions that confuse you. This question was far too broad and general. Remember, this is an Internet forum, so answers are going to be a few hundred words at most. We can answer specific questions in that amount, but not write you a textbook.infinitely small said:So what kind of questions should i ask?