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So, what is it?
Originally posted by FZ+
What about h? h-bar? i?
Originally posted by bdkeenan00
P.S. h-bar is important but it is h/2pi(I think). So you would have to have that important constant pi to have h-bar.
No, you don't need π to define hbar. You could take hbar as fundamental, and define h = hbar * 2π, and then it would be h which requires π. In fact, hbar is really more fundamental than h; it's what appears in the canonical commutation relations which are the foundation of quantum theory.
Originally posted by Ambitwistor
In fact, hbar is really more fundamental than h; it's what appears in the canonical commutation relations which are the foundation of quantum theory. [/B]
Originally posted by QuantumNet
c can be changed
Originally posted by bdkeenan00
How exactly do you change c? Sounds fishy to me.
The most important constant in physics is the speed of light, also known as c. This constant plays a crucial role in many fundamental equations and theories in physics, such as Einstein's theory of relativity.
The speed of light is considered a constant because it is the same in all inertial reference frames. This means that no matter how fast an observer is moving, they will always measure the speed of light to be the same value. This has been experimentally verified and is a fundamental principle in physics.
The value of the speed of light is approximately 299,792,458 meters per second (m/s) in a vacuum. This value is considered a universal constant and is denoted by c in equations.
The speed of light is used in many fundamental equations and theories in physics, such as Einstein's famous equation E=mc². It is also used in fields such as optics, electromagnetism, and quantum mechanics to describe the behavior of light and other electromagnetic radiation.
Although the speed of light is considered a constant in a vacuum, it can be slowed down when passing through a medium such as air or water. However, this is due to interactions with particles in the medium and does not change the actual value of the speed of light. Additionally, the theory of relativity allows for the possibility of space-time being distorted in extreme conditions, but the speed of light remains constant in these cases.