Larsen & Toubro (L&T) has won the deal from India’s Department of Atomic Energy (DAE) to build a LIGO at Aundha in Hingoli district, Maharashtra.
About LIGO
- Objective: It is interferometer based observatory, designed to detect Gravitational Waves.
- Gravitational waves are 'ripples' in space-time caused by some of the most violent and energetic processes (like neutron stars or black holes colliding or orbiting each other) in the Universe.
- These cosmic ripples would then travel at the speed of light, carrying with them information about their origins, as well as clues to the nature of gravity itself.
- Albert Einstein predicted the existence of gravitational waves in 1916 in his general theory of relativity.
- Gravitational waves are 'ripples' in space-time caused by some of the most violent and energetic processes (like neutron stars or black holes colliding or orbiting each other) in the Universe.
- Principle: LIGO exploits the physical properties of light and of space itself to detect and understand the origins of gravitational waves.
- LIGO detects gravitational waves by using laser interferometry to measure miniscule changes in space caused by passing waves.
- It uses twin 4-km-long L-shaped vacuum tunnels to split a laser beam, reflect it off mirrors, and recombine them, creating an interference pattern that reveals stretching or compressing of space.
LIGO India
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