19世纪流行着以太学说,物理学界普遍认为以太是传播电磁波和光的媒介.在经典物理学理论中,将这种无处不在的以太看作绝对惯性系,只有在这个惯性系里,麦克斯韦方程组才能取标准形式,电磁波沿各个方向的传播速度才能等于c,以太因此成为经典物理学赖以建立的绝对时空的物质框架.因此,寻找以太,用实验去验证以太的存在就成为许多科学家追求的目标. Epidemic 19th century popular theory, the physics community is generally considered that the ether is the transmission of electromagnetic waves and light medium in the classical physics theory, this ubiquitous ether as absolute inertia system, only in this inertial system, Maxwell's equations So that the standard form of electromagnetic waves in all directions along the propagation speed is equal to c, the ether thus became the classical physics to establish the absolute space-time material framework.Therefore, looking for ether, the experiment to verify the existence of the ether has become the pursuit of many scientists aims.