Chap1-2. My favorite technological invention

(1st pic: wireless vacuum cleaner/ 2nd pic: wire vacuum cleaner) My favorite technological invention is a wireless vacuum cleaner. Since last year, when we have a wireless vacuum cleaner in our house, my mother uses it a lot. She have turned it around so much that now the sound of it makes my head ring. Although, there's a little noise, I'm holding it in because it seems to be less noisy than the wire cleaner we used before. The first and the best reason that I love it is that the wireless vacuum cleaner reduces my mother's discomfort. Wired vacuum cleaner has restrictions on movement, as someone is holding it from behind. However, since wireless one is powered by a way of charging the battery, there is no problem in acrossing the house. I also think it's a big advantage that it enable us to catch every hidden dust. The second reason is that it is easy to throw away the dust and debr which is accumulated inside the vacuum cleaner. In the case of wire vacuum cleaner, heavy paper bags, where inhaled dust is collected, must be discarded, but in the case of wireless, only a small can of dust gathering needs to be emptied. For this reason, the amount of garbage is noticeably reduced, and the vacuum cleaner itself is relatively kept clean. The last reason is that the weight of the wireless vacuum cleaner is light. Wired vacuum cleaners are heavy and difficult to carry because of heavy parts such as wheels and mains as well as wires. Wireless, on the other hand, is much lighter because there are no unnecessary parts. I think the technological growth like wireless vacuum cleaners is really great. In addition to the invention I introduced, technologies such as mobile phones, computers, and social media seem to make our life more comfortable and interesting, naturally incorporating into it. I think technology is a revolution.