Recent content by SanfordA

domain of validity Every theory must have consistent math, but not necessarily have all observations in accordance with the theory. Is this correct, or do you have another question?

Coulomb's law Good point about point charge. We have a choice. Either reject Coulomb's Law, or deny the existence of point charges. I vote we choose the latter.

"GR breaks down at the singularity itself, which is a completely different statement." No, it is not. If there is one point inside the BH for which physics is not valid, then the entire inside is invalid physics. At least, this is what I think. I do not follow the logic of one point being...

Objectively measured Science consists of mathematical systems, namely, a collection of arbitrary consistent meaningful statements, along with empirical verification. If we find one inconsistent statement, the entire theory is not valid. However, although we cannot get perfect verification, it...

Free Fall Once you cross the event horizon, you lose all contact with the universe, and this is cannot be reversed. The universe become totally unaware of you. This is like going to Heaven. A person who dies and goes to Heaven loses all contact with the universe permanently. This is...

Entropy does not exist. Here are two references: PHYSICS ESSAYS 25, 2 (2012) Entropy: A concept that is not a physical quantity Shufeng Zhanga) College of Physics, Central South University, 932 Lushan South Rd., Changsha 410083, People’s Republic of China (Received 5 September 2010...

Well, using Special Relativity we can derive ME from Coulomb's law. What bad start?

Why eventually? Math is a collection of arbitrary consistent statements. Physics takes the logic of math and compares it with observation and experiment. This is a physical theory.

Do you mean the number of energy levels, and not the number of ways particles may be distributed among these levels?

We must teach the math behind the physics. Such as vectors.

Interesting comment. I like to view it as an example of applying mathematical principles to physics, multiplying vectors.

Your comment does not answer my question. Consider an ideal gas of helium molecules.

Force and distance are vectors. There are two mathematical operations we can do multiplying vectors, the dot product and the cross product. The dot product is a scalar, and this is work. The cross product is torque. The answer to your question is that we simply look at the two operations we can...

First, do not panic. You need to get a good night's sleep and have a proper breakfast. Remember, it takes time to think. Look at the material, then look away and say to yourself, "Think of nothing". Then look back at the work. Do one step at a time. First, find what is the problem. Then...

We physicists must be careful to insure that theories begin with correct principles. One basic principle is that all quantities must be capable of being observed or measured. If a theory uses a quantity that cannot be observed, then it is not a physics theory, but a hypothesis or a...