Downtowns of all big cities are full of skyscrapers. Skyscrapers probably started as a way to accommodate more space, but with growing technologies they have also made the cities look more and more beautiful, which have only made them more popular. However, one of the main concerns with skyscrapers and even average sized buildings is the long and hectic cleaning process involved. While traveling through the downtown of Atlanta, I have witnessed numerous times people climbing down a rope on multistory buildings just to clean the windows. Also, they used long cranes and other equipments just to keep the building looking good. This might seem like a waste of resources but it is something that has to be done regardless.
Beijing, China
Gateshead, U.K.
Lotus leaves have a very unique surface structure that creates high water repellency. When water is dropped on the surface of the lotus leaves, it flows down immediately picking up the small dirt particles on the surface, which enables minimization of adhesion.
This same surface structure can be created on many different things we use in our daily lives. One of these things could be those tall buildings we see in downtowns. This should save a lot of resources wasted on keeping the buildings clean.
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