Thermal curves are not new. Most parts of our planet go through a thermal curve every day. It starts out cool in the morning, until the sun warms the earth in the afternoon. In late afternoon, the sun begins to set and the earth begins to cool down. Changes in temperature are a normal part of the life cycle. Most of the time we find these changes to be enjoyable. But, electronic components do not like temperature changes. They often reveal imperfections in the ability of electronic components to do their job.