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Bassirou
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Hello. I would like to ask if really gravitational waves (GWs) exist? Mathematically they are predicted to exist. However despites the intense efforts invested to detect them so far they cannot be detected.
Bassirou said:Why GW cannot be directly detected?
Gravitational waves are ripples in the fabric of space-time that are created when massive objects accelerate. They were first predicted by Albert Einstein in his theory of general relativity.
Gravitational waves are detected using extremely sensitive instruments called interferometers. These instruments use lasers to measure the tiny changes in the distance between two points caused by passing gravitational waves.
Detecting gravitational waves is significant because it provides evidence for the existence of these waves, as well as confirming Einstein's theory of general relativity. It also opens up a new window for studying the universe and understanding the behavior of massive objects such as black holes and neutron stars.
Gravitational waves and electromagnetic waves are both forms of energy that travel through space, but they differ in their properties. Gravitational waves are not affected by electric or magnetic fields and can pass through any material, while electromagnetic waves can be absorbed or reflected by certain materials.
No, gravitational waves cannot be used for communication as they are extremely weak and difficult to detect. Also, they cannot be modulated or controlled like electromagnetic waves, which are used for communication purposes.