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.
The Story Behind the First Cell Phone Call Ever Made. On April 3, 1973, an engineer named Martin Cooper did something crazy: He made a phone call while walking down the street. Cooper was heading up a team of engineers at Motorola who were working to build the worldâs first cellular telephone.