The time machine is a small program design for interesting popular science and games. The work aims to make users feel the progress of science and technology, the improvement of people's living standards and the prosperity and development of the motherland in diversified science popularization and games. In the "science popularization" part of the applet, the characteristic items of each era are displayed and introduced to reflect the progress of science and technology in the changing times. Users can click the "object" icon in the middle of the interface to view the object introduction, and click the "middle" button below to change and view the object. In order to enhance the user's experience and sense of age, we have set up a representative music as the background music in each era, at the same time, when the user clicks the "object" icon, the corresponding object sound effect will appear to enhance the interest. In addition to a brief science, in order to enhance interactivity, in the small program, we also designed a simple and interesting little game. Players will take "Zhang San, who recycles waste products for a living" as the first-person perspective, carrying dreams with the characteristics of the times as the background of the story in different times, and realize their dreams by recycling the correct age items. In the course of the game, as the score accumulates, the difficulty of the game will also increase. If the game reaches the target score, it will receive a special certificate or trophy as a reward mechanism and unlock it to enter the next era. If the game fails, the result ranking list and random chronological item introduction will pop up. Players can choose to play again or return to the item introduction interface.