为什么肥皂泡不是方形的?因为肥皂泡形成的时候,里面充满了气体。只有当肥皂泡内部的气体和外部的空气达到平衡时,它的状态才能够稳定。球体的表面积是所有形状中最小的,泡泡呈球形,能让它表面的水分子以最紧密的方式排列,让泡泡内部气压和外部空气压力以及泡泡的表面张力达到平衡,使泡泡的状态得以稳定,“寿命”更为长久。 Why soap bubble is not a square? Because soap bubble is formed, it is full of gas. Only when the gas inside the bubble and the outside air reaches equilibrium, can its state be stabilized. The sphere’s surface area is the smallest of all shapes. The bubbles are spherical in shape, allowing the water molecules on the surface to align in the most compact way, balancing the pressure inside the bubble with the outside air pressure and the surface tension of the bubble, The state is stable, “life ” more long-term.