INTERESTING ENGINEERING - Gravitational waves, tiny ripples in spacetime caused by cosmic collisions like merging black holes, are almost impossibly faint. Detecting them requires LIGO (Laser Interferometer Gravitational-Wave Observatory), one of the most sensitive instruments ever built. However, there’s a catch. To see farther and catch weaker signals, LIGO needs more powerful lasers, but stronger...
By Rupendra Brahambhatt | Interesting Engineering |