Posts

Showing posts from August 14, 2017

Gravitational Waves: A Hundred Years Struggle

Image
Last year, on February 11 the team of LIGO (Laser Interferometer Gravitational Wave-Observatory) the USA gave humanity a great discovery which gave scientists a portal to investigate this huge universe in a totally different way (Cofield, 2016). This was the day when the LIGO team announced the discovery of “Gravitational Waves” and we must say a great tribute to 100 years of General Relativity. These waves formed when two black holes circulated each other and finally collided. The reason why this was a huge discovery is it changed science, it nullified some very old concepts and proved some new. Although the possibility of gravitational waves was discussed by Oliver Heaviside in 1893 since gravity and electricity obeys inverse square law (O, 1893), Henri PoincarĂ© in 1905 also proposed the concept of gravitational waves using Lorentz Transformation (Poincare, 1905), but it was properly described by Einstein in 1916 based on his theory of General Relativity. Since then scientists have