Specifically, fibers from the nasal half of the left eye and the temporal half of the right eye form the right optic tract; and the fibers from the nasal half of the right eye and the temporal half of the left form the left optic tract.
A Shifting Purpose. Early cell phones were just for talking. Gradually, features like voicemail were added, but the main purpose was talk. Eventually, cell phone manufacturers began to realize that they could integrate other technologies into their phone and expand its features.
However, most people do not understand the physics of a cell phone. The purpose of this unit of The Physics of Cell Phones is designed to provide students in grades 5-8 the opportunity to explore and to solve problems about the physics of how cell phones work.