Explanation of tidal wave formation in sea due toe gravitaion force of moon

Click For Summary

Discussion Overview

The discussion revolves around the formation of tidal waves in the sea due to the gravitational influence of the moon, exploring the distinctions between tidal waves and tides, and the applicability of general relativity to these phenomena.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • One participant inquires about the explanation of tidal waves in the sea as a result of the moon's gravitational force, referencing general relativity.
  • Another participant clarifies that "tidal waves" are often misnamed and are actually caused by earthquakes, while tides are influenced by the moon's gravity and the Earth's rotation.
  • A different participant emphasizes the distinction between "tidal waves" (tsunamis) and tidal phenomena, asserting that the two are fundamentally different despite sharing the term "tidal." They argue that the explanation for tsunamis does not involve tidal theory.
  • It is suggested that if "tidal wave" refers to phenomena like tidal bores, then general relativity is not the appropriate framework for understanding them due to the complexity of the Earth's gravitational field.
  • Another participant notes that Newtonian mechanics is sufficient for explaining tides, as the gravitational effects involved are relatively weak compared to scenarios where general relativity is necessary.

Areas of Agreement / Disagreement

Participants express disagreement regarding the terminology and concepts of tidal waves versus tides. There is no consensus on the applicability of general relativity to the explanation of tidal phenomena, with some arguing for its relevance and others asserting that Newtonian mechanics suffices.

Contextual Notes

The discussion highlights the confusion surrounding the terms "tidal wave" and "tide," and the limitations of general relativity in practical applications related to Earth's complex gravitational field.

varuncsed1
Messages
5
Reaction score
0
Hello
According to general theory is there any explanation of tidal wave in sea due to gravitation of moon.
How moon warp space time in such a way so that tidal waves are generated in sea?
 
Physics news on Phys.org
Tidal waves (aka tsunamis) are caused by earthquakes. The name "tidal wave" is unfortunately a big misnomer. However, if you are interested in tides, the sea level is an equipotential surface, which is affected by the Earth's gravity, the Earth's rotation, and the moon's gravity.
 
According to general theory is there any explanation of tidal wave in sea due to gravitation of moon.

there is not. it's two different meanings/uses of "tidal".


A "tidal wave" is caused by the sudden displacement of a large volume of a body of water, usually an ocean, but can occur in large lakes...This displacement of water is usually attributed to either earthquakes, landslides, volcanic eruptions, or more rarely by meteorites and nuclear tests...http://en.wikipedia.org/wiki/Tsunami


How moon warp space time in such a way so that tidal waves are generated in sea

The only way I can think of our moon causing a possible tidal wave (as commonly understood) is if part of it suddenly was broken off, say by a huge meteor strike, and a large chunk passed close by the earth, or if the whole thing left it's natural orbit and passed close by.
 
varuncsed1 said:
\According to general theory is there any explanation of tidal wave in sea due to gravitation of moon.
As others have already noted, you are confusing tidal waves with tidal theory (better: theory of the tides). If by "tidal wave" you mean a tsunami, then the only things these two phenomena have in common is that they both have "tidal" as a part of their name. The explanation of tsunamis has nothing to do with the tides. The term "tidal wave" is more than a misnomer here, which is why scientists prefer to use the name tsunami rather than tidal wave.

If on the other hand by "tidal wave" you mean phenomena such as tidal bores, even though that truly is a result of the tides, you aren't going to find the answer in general relativity, either. It's not that general relativity can't handle it conceptually; the problem is that the geometry is just too complex for general relativity to handle in practice. General relativity can handle situations such as neutron stars and black holes where the strong gravity fields make the geometry simple. In these situations you have no recourse but to use general relativity because Newtonian gravity is, simply put, wrong.

The Earth, with its lumpy gravity field and its lumpy continents, is a bit too much for general relativity to handle. Besides, there is no reason to go all the way to general relativity to explain the tides. The Earth's gravity field is so weak and the velocities involved are so small that Newtonian mechanics works just fine in explaining the tides.
 
Thanx to all to clear my doubts...
 

Similar threads

  • · Replies 9 ·
Replies
9
Views
3K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 30 ·
2
Replies
30
Views
5K
  • · Replies 58 ·
2
Replies
58
Views
7K
  • · Replies 13 ·
Replies
13
Views
4K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
9
Views
4K
  • · Replies 5 ·
Replies
5
Views
2K