邁向大型重力波干涉儀觀測網路（英文原稿）

Towards the Completion of ground-based Gravitational Wave Detector Network

We are witnessing the dawn of Gravitational Wave (GW) Astronomy. We now have a new way to “hear' the Universe. In this article, we would like to discuss about the experimental aspect of GW Astronomy.It is known that the GW strain amplitude is extremely small. Usually, it is mentioned that as a ratio of the size of Hydrogen atom over the distance between Earth and the Sun.