It is frequently claimed that the Great Wall of China is the only man-made object that can be seen from space. For the most part, however, this is a myth. According to NASA, while there are many objects of human creation that can be seen from orbit, the Great Wall generally isn’t one of them.
Meanwhile, back on Earth, a far different type of Chinese wall has gained notoriety of late. Specifically, drywall (also known as plasterboard, wallboard or sheetrock) manufactured in China and used in recent home construction in the United States has come under intense scrutiny for its allegedly harmful effects.
