What will the future world look like? I spent a day traveling in the future world created by technology. I came to the future school for the first time. Students here use strange pens, exercise books, rulers and so on. This strange pen is equipped with a magic refill. As long as you make a mistake, press the switch on the pen and the typo will disappear automatically. The function of peculiar exercise books is to accept only correct answers and neat handwriting. The ruler can correctly display the length of the measured object. I found that their schoolbags are equipped with rearview mirrors, which can inform the possible dangers behind them in time, greatly reducing accidents. During the exam, the teacher can know who cheated by watching TV on the podium and correct it in time.
At this moment, I walked out of the school. Go to a friend's house I just met. Walking on the road, I saw a beautiful exhaust filter every ten meters. When the waste gas in the air reaches a certain level, the filter will automatically work, suck in polluted air and release fresh oxygen. These novel filters not only beautify the urban environment, but also purify the air, making it fresher, fresher, fresher and healthier.