Triple Point vs. Critical Point Why is specific volume unchanged at Critical Point but can have a range of values of Triple Point?

My understanding is that for an inner product in state-space, since we want the value to always be a real number we say that $$\langle\psi|\phi\rangle= {\langle\phi|\psi\rangle}^* $$ where * denotes complex conjugate. But when we have an adjoint operator acting on $|\phi\rangle$ we say: $$\langle...

I understand that the Einstein field equation uses the Ricci curvature tensor, Ricci curvature scalar, and stress-energy momentum tensor. But is there a way to form an equation that uses the Riemann curvature tensor and the stress-energy momentum tensor?

In the physical sciences (which are physics, chemistry, astronomy, materials science, etc.), we learned that the uncertainty is +/- the smallest unit (which is 1) of the last significant figure if the uncertainty is not given in a recording of data. So, if we have a digital measuring device that ...

This and similar depictions are used when deriving the equation for the mach cone angle $\theta$. It is usually stated that, using algebra we can conclude that: $$sin \ \theta={ct\over vt}$$ and thus: $$θ=arcsin \left({c\over v}\right)$$ However, I noticed that, that assumes a right angle betwee...