Physicists do it in waves. Physicists do it like Einstein. Physicists do it magnetically. Physicists do it on accelerated frames. Physicists do it particularly.
Physicists do it repulsively.
Physicists do it strangely. Physicists do it with charm. Physicists do it with large expensive machinery. Physicists do it with rigid bodies. Physicists do it with string and sealing-wax.