How They Work

Maybe you haven't noticed that our lives are full of all kinds of "miracles" - those interesting tools and wonderful machines, those common public facilities, and all kinds of technological products around us... It is because of them that our lives have become so comfortable and beautiful. Don't believe it? Then count how many "silent friends" you meet every day: early in the morning, your mobile phone will wake you up with a beautiful ringtone; you wash your face with hot water from the water heater to dispel the early morning fatigue; after breakfast, you get on the bus or ride a bicycle and rush to school; in school, you listen to the teacher's PPT lectures made on the computer and study happily; after class breaks, you take out the music player to listen to music and relax Tired brain; on the way home from school, you discovered beautiful scenery and happily took pictures of them with a digital camera; when you got home, your mother was cleaning the room with a vacuum cleaner; when you entered the room, you turned on the computer and started doing the homework assigned by the teacher, and sent an email to the teacher; before dinner, your father drove the car and used the satellite navigation system to find the way to the restaurant; lying in bed at night, you dreamed that you were driving a spaceship and roaming freely in the vast space...