What are those shining red and silver balls put on high power transmission lines?

Those balls are known as Aviation balls. Those balls are specially put on the transmission lines which are near to the highways. Many of the times these highways are used as military runways to land their jets while performing a drill or an air show. So to make sure that the pilot sees the transmission lines, these balls are put there. So next time when you are going from a highway, make sure you watch out for these balls.

#THEWATT