Insulation

Introduction
The experimenter is testing on denim, cotton T-shirt material, wool fabric,
thermal underwear, polyester fabric, and a Ziplock bag with no insulator. From
research the experimenter learned that wool is a fine soft wavy hair that forms all
or part of the protective coat of a sheep. Since ancient times it was harvested to
provide clothing and is an important part in textile trade because of its insulation.
Woolen fabric is when the woolen system uses short or mixed long and short
fiber where no combing is done. It has a rough appearance and is most suitable
for blankets, ove…