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.
A Brief History of the Payphone. Invented by William Gray in 1889, he began selling his devices in 1891. The first payphones were opened to the public, using attendants to collect the money and place the calls for you. The payphone went almost ten years before it finally became a coin-operated model that was largely unattended.