Task: Translation
Input (Chinese): 虽然早在1918年约瑟夫·伦瑟和汉斯·瑟林就提出了这种效应的理论，但这种效应的影响规模很小，对于一颗环绕地球运行的卫星来说，产生的影响只有万亿分之一，因此很难探测到这种效应。
Output (English): While the effect was theorized by Josef Lense and Hans Thirring as far back as 1918, the small scale of the effect, as little as one part in a trillion for a satellite orbiting the Earth, made detecting the effect difficult.