A circular saw is made of a circular blade acquiring teeth on its periphery and mounted with a shaft. Band and frame saws have relatively skinny blades and so are for that reason considerably less wasteful than circular saws. Band and round saws allow changing board thickness and turning the log aft

emission of optical radiation every time a material is subjected to any sort of electromagnetic radiation, in which the emitted radiation usually appears in just ten ns after the excitation. Fluorescence is due to an "allowed" transition commonly from an excited singlet condition to th