OF THE TRADE"
-BASEBALL DISSECTION [PAGE 1 OF 1]
official National League Baseball.
leather cover is peeled back to reveal a layer of twine.
This first layer of thin twine is peeled away. This thin
layer creates a smoother surface on which to place the leather cover.
With most of the first layer of twine gone, the darker,
heavier yarn underneath is revealed. Many cheaper baseballs have only
a solid mass of cork/rubber amalgam under the first layer of yarn,
but with a pro ball, the yarn has only just begun!
the dark wool yarn begins. The bits of red thread you see are the
anchor points for the heavy red stitching used on the baseball's leather
The dark yarn gives way to a layer of white yarn. Winding
these layers of yarn tighter or looser can affect the elasticity of
the baseball. A tighter wrap results in a livelier ball.
Back to dark yarn again. A cat would love this process
-- countless yards of yarn!
baseball shrinks as the pile of dark yarn grows. This last layer of
dark yarn makes up most of the baseball's size and mass.
We're down to a thin layer of red rubber,
and the ball is about the size of a Superball. Drop this ball,
and you'll discover that it is quite bouncy! The outer layers
of yarn clearly serve to moderate the elasticity of the rubber
One last cut, and the tiny cork core is revealed.
Notice that the red rubber layer gives way to a layer of
black rubber as well. The cork core is about the size of
a small grape.