Meaning of the sonnet 126 by william shakespeare

The meaning of the Sonnet 126 by William Shakespeare was that time destroys both beauty and love. It's also about youth and how it's mortal, and he's explaining how he will eventually die, but he doesn't seem that emotional about it.

the direction of the magnetic field produced by an electric current will change when the direction of the electric current changes. for example : if a current is flowing in a straight length of wire, the magnetic field is described by a concentric circle (using right-hand rule).