Hypnosifl's user avatar
Hypnosifl's user avatar
Hypnosifl's user avatar
Hypnosifl
  • Member for 9 years, 5 months
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21 votes
Accepted

Gravitational field intensity inside a hollow sphere

21 votes
Accepted

Gödel's solutions to Einstein's relativity equations and their consequences

19 votes

What does this depiction of a black hole in the movie Interstellar mean?

16 votes
Accepted

How do tachyons violate causality?

15 votes

Shine a beam of light horizontally, drop a stone from same height - would both hit the ground at the same time?

13 votes
Accepted

Is it possible to make laser beams visible midair without smoke?

12 votes
Accepted

What would happen if a negative mass crossed the event horizon of a black hole?

12 votes
Accepted

How does Hendo hoverboards achieve the self-propelling motion? What is the MFA?

10 votes

When a planet is heated through gravitational pull, where is the energy taken from?

10 votes
Accepted

Why is Wheelers Delayed Choice Experiment Incorrect?

9 votes
Accepted

A sees B's clock running slow and B sees A's clock running slow?

9 votes
Accepted

Visualizing gravity in 3D

8 votes

Gravitational coupling of tachyons

8 votes

Would a wormhole in space look like anything at all?

8 votes

Why isn't length contraction permanent even though time dilation is?

8 votes

Why and how is the speed of light in vacuum constant, i.e., independent of reference frame?

8 votes

How does "warp drive" not violate Special Relativity causality constraints?

7 votes
Accepted

What is the physical meaning of the Eddington-Finkelstein coordinates?

7 votes
Accepted

How does dark matter collapse?: Entropy considerations

7 votes
Accepted

Length contraction in cyclic space

7 votes

Problem with Maxwell's theory

7 votes
Accepted

How confident can we be that the speed of light in a medium is constant?

7 votes

Thought Experiment - Poking a stick across a Black Hole's Event Horizon

6 votes

Calculating the mass of a wormhole

6 votes
Accepted

Shape of accretion disk surrounding the black hole in Interstellar (film)

6 votes
Accepted

Can gravitational waves orbit each other to form a standing wave?

6 votes
Accepted

Why do we feel resistance to gravity rather than the acceleration of gravity?

6 votes
Accepted

Spacetime diagram of a collapse of a rotating star

6 votes
Accepted

How far away must a galaxy be for its light never to reach us due to the expansion of the universe?

6 votes

Does Newton's third law apply to momentum or to forces?

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