From a distance, scaffolding looks like a maze of criss-crossing steel pipes that encircles a building. But peer closely and you will realize that complex and precision engineering is at work behind the lattice.It is believed that scaffolding originated in ancient North Africa and China. A Greek wine cup, also known as a kylix and dating back to the fifth century, contains an image of a statue of a warrior within a scaffolding.Scaffolding today is mainly made of metal pipes. But in some parts
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