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Why are Sink Pipes Curved?

Author: Edgar Zhu

Editors: Shamsia Ahmed and Simran Gohel

Artist: Tiffany Gao

In our daily lives, it is the norm to find water pipes in kitchens and bathrooms twisted and entangled with one another. How many times have you popped out with curiosity on the reason behind this, and how many times did you abandon the question, considering it as another trivial, futile idea? Or, have you dug into the question and found the scientific theory behind this phenomenon in depth with further exploration?

The fundamental theory of the phenomenon is called the Principle of Communicating Vessels. If a U-shaped glass tube contains the s