麦克斯韦张力支撑水桥
Maxwell Tension Supports the Water Bridge
摘要：
一个由纯净的液态水组成的圆柱形柔性电缆可以实验性地跨越一个空间间隙，电缆端点固定在两个玻璃烧杯的顶部边缘。这种电缆被称为水桥，与建造普通跨度桥梁的铁索非常相似。建造水桥的一个必要条件是存在一个大的电场，该电场平行于水缆并位于水缆内。目前，还没有公认的详细理论来定量解释支撑桥梁的力。我们的目的是提出这样的理论的基础上的麦克斯韦压力张量诱导的电场，虽然在凝聚态介质流体电缆。
英文摘要：
A cylindrical flexible cable made up of pure fluid water can be experimentally spanned across a spatial gap with cable endpoints fixed to the top edges of two glass beakers. The cable has been called a water bridge in close analogy to iron cables employed to build ordinary span bridges. A necessary condition for the construction of a water bridge is that a large electric field exists parallel to and located within the water cable. Presently, there is no accepted detailed theory which quantitatively explains the forces which hold up the bridge. Our purpose is to present such theory based on the Maxwell pressure tensor induced by the electric field albeit within the condensed matter dielectric fluid cable.
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