Thought experiments about Gravitational Waves

In summary, the conversation discusses the concept of a mass disappearing and reappearing from space, and the potential detection of gravitational waves and electromagnetic waves in these scenarios. It also questions the validity of these thought experiments within current physics.
  • #1
bubal
11
0
Imagine a mass that disappeared from space. I know that it is impossible, but imagine it is sucked by a wormhole or it just disapperars.

Will we detect ONE gravitational wave only? Like a pulse and nothing else?
Now the other way around. A mass appears from nothing.

Then we will detect one gravitational wave equal to the previous but in inverse phase (180º)?

Other question that I have is what happens if a charge appears from nothing in space (thought experiment, of course). The electric field from that charge expands in the form of an electromagnetic wave or simply an expanding electric field?

Thank you very much!.

Simon.
 
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  • #2
bubal said:
Other question that I have is what happens if a charge appears from nothing in space (thought experiment, of course).

How is this allowed within our current physics?

Zz.
 
  • #3
What color is an invisible unicorn?
 

Related to Thought experiments about Gravitational Waves

1. What are thought experiments about gravitational waves?

Thought experiments about gravitational waves are hypothetical scenarios designed to help us understand the behavior and effects of these ripples in spacetime. They involve imagining various situations and analyzing their outcomes based on our current understanding of the principles of physics.

2. How do thought experiments contribute to our understanding of gravitational waves?

Thought experiments allow us to explore the implications of gravitational waves in a controlled and abstract manner. They help us make predictions and test theories about the behavior and properties of these waves, which can then be confirmed or disproven through actual experiments and observations.

3. Can thought experiments about gravitational waves be performed in reality?

No, thought experiments are purely hypothetical and cannot be physically performed. They are a tool used by scientists to think critically and creatively about complex concepts and phenomena.

4. Are there any famous thought experiments about gravitational waves?

Yes, one of the most well-known thought experiments about gravitational waves is the "elastic sheet" analogy used by Albert Einstein to explain their behavior. This thought experiment involves imagining a large, stretched sheet representing spacetime, with objects placed on it causing ripples when they move.

5. How do thought experiments about gravitational waves relate to real-life observations and experiments?

Thought experiments help us make predictions and develop theories about gravitational waves, which can then be tested through actual experiments and observations. They also help us understand the implications and consequences of these waves and guide our search for evidence of their existence in the universe.

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