Fuzzy Yellow Tennis Balls
Aren't those flashy yellow balls are extremely attractive? When they are new, they propagate an exquisite feel for being hit. :) It's no wonder that dogs love playing with it. Nevertheless, I always wondered how a tennis ball is manufactured... Here are two videos, one new and the other relatively old, giving some details.
It seems the technique hasn't been changed in the modern era. Of course there are certain changes, an interesting one of which is the forming the pressure inside the ball. In the older days they place a chemical pill inside which sublimates with the heat. Nowadays they manage to tunnel pressure just before sealing two hemispheres.
It seems the technique hasn't been changed in the modern era. Of course there are certain changes, an interesting one of which is the forming the pressure inside the ball. In the older days they place a chemical pill inside which sublimates with the heat. Nowadays they manage to tunnel pressure just before sealing two hemispheres.