3 ms·
symmetries give us the laws of conservation (time symmetry, conservation of energy; rotation symmetry, conservation of angular momentum etc)
by lazyant 5y ago
symmetries give us the laws of conservation (time symmetry, conservation of energy; rotation symmetry, conservation of angular momentum etc)
- hither_shores 5y agoNoether's theorem gives you conservation laws from continuous global symmetries, like those you've noted. Under certain conditions this can be extended to discretized global symmetries (as in, for instance, a crystal lattice) but there's no analogue for the true discrete symmetries exhibited by most body plans.