What's the Difference Between Gravitational Waves and Gravity Waves?

In summary, there are two types of waves related to gravity: gravitational waves which are linked to spacetime and General Relativity, and capillary waves which are surface waves on liquids influenced by Earth's gravity. While the term "gravity waves" may also be used colloquially to describe the recent LIGO results, it actually refers to a different phenomenon unrelated to General Relativity. Therefore, gravitational waves and gravity waves should not be confused as they are caused by different mechanisms.
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math04
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Please, I need a good books about the meaning of "Gravitational and Capillary waves "
 
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  • #2
Gravitational waves are related to spacetime and notions in General Relativity.

https://en.wikipedia.org/wiki/Gravitational_wave
Capillary waves are surface waves on a liquid such as water which can be influenced by the Earth's gravity and are known as gravity-capillary waves:

https://en.wikipedia.org/wiki/Capillary_wave
Some video footage of capillary waves and gravity waves:



The confusion comes in because popsci writers sometimes use the term gravity waves to describe the recent LIGO results. Gravity waves has nothing to do with General Relativity's gravitational waves.

https://en.wikipedia.org/wiki/Gravity_wave
Bottom line is gravitational waves and gravity waves are separate physical phenomena caused by different physical mechanisms with unfortunately similar names.
 

FAQ: What's the Difference Between Gravitational Waves and Gravity Waves?

1. What are gravitational-capillary waves?

Gravitational-capillary waves are a type of surface wave that occurs on the interface between two fluids with different densities. They are caused by the combined effects of gravity and surface tension.

2. How are gravitational-capillary waves different from other types of waves?

Unlike other types of waves, gravitational-capillary waves are not confined to a specific medium and can occur on the interface between any two fluids. They also have a longer wavelength compared to other surface waves.

3. What factors affect the formation of gravitational-capillary waves?

The formation of gravitational-capillary waves is influenced by the properties of the two fluids, such as their densities and surface tensions, as well as external factors such as wind speed and the topography of the surface.

4. What are some real-world applications of gravitational-capillary waves?

Gravitational-capillary waves can be seen in various natural phenomena such as ocean waves, ripples on a pond, and even the formation of clouds. They are also studied in fluid dynamics and have practical applications in fields such as ship design and oil spill cleanup.

5. How are gravitational-capillary waves studied and measured?

Scientists use various techniques such as laser interferometry and high-speed cameras to study and measure gravitational-capillary waves. These methods allow for precise measurements of the wave properties, such as wavelength and amplitude, and help in understanding the underlying physics of these waves.

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