It saves your time lapse photos in-app (rather than to your camera roll) for you to export to the location of your choice: your photo library (as individual photos), the Glimpse Cloud, or SyncDocs. The latter two store your photos as movies/glimpses; they are free but do require you to have an account.
Insulation works by reducing the transfer of heat by means of a barrier. Unfortunately in most cases the better the insulation the more it costs, so like most things a balancing act is required. To understand insulation you need to know what thermal conductivity, R values and U values are. Thermal conductivity is the measure of how easily heat flows through a specific type of material, regardless of the thickness of the material. The lower the thermal conductivity of a material, the better the thermal performance (i.e. the slower heat will move across a material). See below for some example materials and there conductivity values.
Thermal Conductivity. Heat transfer by conduction involves transfer of energy within a material without any motion of the material as a whole. The rate of heat transfer depends upon the temperature gradient and the thermal conductivity of the material.Algebraic methods can be used for the calculation of conduction heat transfer across plane walls, but for most geometries the heat transfer must be expressed in terms of the thermal gradient.he rate of heat transfer depends upon the temperature gradient and the thermal conductivity of the material.