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Sten's user avatar
Sten's user avatar
Sten's user avatar
Sten
  • Member for 6 years, 5 months
  • Last seen this week
30 votes
Accepted

Why do we say that temperature of Universe is around 2.7 K?

22 votes

Where does length contraction occur towards?

16 votes
Accepted

Is there a distance from a gravitational source where the influence of gravity and dark energy are balanced out?

15 votes

Which Potentials lead to Kepler's second Law?

15 votes
Accepted

What's the argument(s) against dark matter being "normal" baryonic dust?

13 votes

What would the collapse of a neutron star into a black hole look like from the center?

12 votes

Are there actually any photons in orbit in the photon sphere of a black hole?

12 votes

Does special relativity hold for rotating reference frames?

11 votes
Accepted

Is relative velocity slowed by the expansion of space?

11 votes

Is there a Dark Matter Paradox?

10 votes

Why is nonzero net charge density incompatible with the cosmological principle?

10 votes
Accepted

Age of a dark energy dominated universe

10 votes
Accepted

Why is the horizon problem a problem?

8 votes

Is there an spherical symmetric Einstein vacuum solution which has circular orbits with flat velocities? Or a proof that it cannot exist?

7 votes

How is the expansion of space distinguishable from objects moving away?

7 votes

Is there a way to visualize curvature of time?

7 votes
Accepted

How can I resolve this apparent paradox about the average age and the average lifetime?

7 votes
Accepted

What's the meaning of 'cold' in the CDM model?

6 votes

Why is intensity additive?

5 votes

Contradiction in negative mass interactions according to GR

5 votes

Wave equation of a string fixed on both the ends

5 votes
Accepted

Could it be possible that the Universe is expanding in some areas while contracting in other areas?

5 votes

Gravitation not instantaneous = non-elliptic orbits?

5 votes
Accepted

Theoretically, can perfectly flat space exist in the universe?

4 votes
Accepted

Negative Horizon distance

4 votes

Please help me with this paradox

4 votes

Accelerating Expansion of Universe - Why Not Caused by Radiation?

4 votes

If you fell into a black hole feet first, could you see your feet?

4 votes

Making sense of the Jeans mass

4 votes

Relativity on a massive bridge

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