Eric Shashuwa, an Englishman, invented the mechanical alarm clock that influenced the biological clock of the human brain in 1788, just after he left the university campus. Since then, life tools represented by alarm clocks have begun to sweep the world, and may continue from the 18th century to the 21st century. In fact, when we seek simplicity and convenience most, we have unconsciously formed a third-party force in our brains and even subjective thoughts, which can replace many human hands-on operations and behavioral processes.