Robot is an intelligent machine that can work semi autonomously or fully autonomously. The earliest robot in history can be seen in the puppet robot created by the craftsman ordered by Emperor Yang of the Sui Dynasty according to the image of Liu Yu. It has mechanisms and has the ability to sit, rise, worship and fall.
Robots have the basic characteristics of perception, decision-making and execution. They can assist or even replace human beings to complete dangerous, heavy and complex work, improve work efficiency and quality, serve human life, and expand or extend human activities and capabilities.
In 2021, the research team in the United States created a kind of alien robot (xenobots 3.0) that can reproduce itself for the first time in history.
