随着世界人口的增长,人均生存空间越来越小。为此,人们在修建高楼的同时也把目光投向了地下,修建在地下的铁路和商城越来越多。然而,地下建筑的采光是个大问题。美国研究人员认为,可用光导纤维来解决这个难题,并准备开建一座示范性的“地下阳光公园”。光纤让阳光拐弯如何让阳光进入封闭的空间?在古代人们就知道用透明屋顶和窗户来让屋子变得亮堂。美国研究人 As the world’s population grows, the space for per capita living is getting smaller and smaller. For this reason, people are also building their sights on the ground while constructing high-rises. More and more railways and malls are being built underground. However, the lighting of underground buildings is a big problem. American researchers believe that optical fiber can be used to solve this problem and prepare to build an exemplary “underground sunshine park”. How do optical fibers turn the sun? How do you let sunlight into the enclosed space? In ancient times, people knew that using transparent roofs and windows would make the house bright. American researcher