Top network posts

• 247 Do we know why there is a speed limit in our universe?
• 65 Why correlation functions?
• 61 What is the difference between implicit, explicit, and total time dependence, e.g. $\frac{\partial \rho}{\partial t}$ and $\frac{d \rho} {dt}$?
• 46 Why does one experience a short pull in the wrong direction when a vehicle stops?
• 46 What is the usefulness of the Wigner-Eckart theorem?
• 45 Calculus of variations -- how does it make sense to vary the position and the velocity independently?
• 43 What is the status of Mpemba effect investigations?
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