I would love to hear a good relatively-plain-English retelling (assuming some good undergrad physics knowledge) of how to understand these statements?
> Time translation symmetry gives conservation of energy; space translation symmetry gives conservation of momentum; rotation symmetry gives conservation of angular momentum, etc
Something about how if you see that processes can be step-wise played forwards or backwards, it implies the certain quantity is conserved? How?
> Time translation symmetry gives conservation of energy; space translation symmetry gives conservation of momentum; rotation symmetry gives conservation of angular momentum, etc
Something about how if you see that processes can be step-wise played forwards or backwards, it implies the certain quantity is conserved? How?