|Balloons are made of a thin sheet of a rubber called latex, a polymer made|
of long chain-like molecules, or strands, that are all tangled together.
|There are also bonds between the strands, call cross-links. This tangled, cross-linked |
network of molecules can be stretched, but when you let go, it returns to its original shape.
|This happens when the skewer is twisted through the side of the balloon.|
|Make sure to poke through where the latex molecules are under |
the least amount of pressure. Near the tied part of the balloon.
|When a very sharp skewer is slowly pushed, with twisting, into the balloon, |
the polymer chains are pushed aside, but remain bonded, so the balloon does not break.
|The Vaseline helps to seal the holes.|