Jacopo Tissino's user avatar
Jacopo Tissino's user avatar
Jacopo Tissino's user avatar
Jacopo Tissino
  • Member for 7 years, 6 months
  • Last seen this week
47 votes

Is the law of conservation of energy broken by the side-effects of heating and cooling a liquid that evaporates and condenses?

37 votes

How does Planck's curve solve the ultraviolet catastrophe?

33 votes

What is the gravitational force acting on a massless body?

28 votes
Accepted

Is there a gravitational analogue of a classical Rutherford-atom?

27 votes
Accepted

How close does a photon have to get to a black hole to do a full loop?

22 votes

Least squares fit versus averaging

20 votes
Accepted

Is "speed relative to the universe" a well-defined concept?

17 votes
Accepted

Why do we say the universe is isotropic when we are clearly moving w.r.t the CMB?

17 votes
Accepted

Should not we apply pseudo-forces all the time as the Earth is a non-inertial frame of reference?

17 votes
Accepted

Thought experiment: Does "artificial gravity" created in a spinning spaceship last forever?

15 votes

What if the resulted error is so large?

13 votes

Correct definition of “speed” of gravity

13 votes
Accepted

Natural motion of objects according to Einstein

9 votes
Accepted

Why is the covariant derivative of the metric tensor with UPPER indices equal to zero?

7 votes
Accepted

Is the speed of light the limit or just everything moves at this speed?

5 votes
Accepted

Precession of perihelion of Mercury?

4 votes
Accepted

Squared vector field terms $\mathbf{E}^2$ and $\mathbf{H}^2$?

4 votes
Accepted

4-velocity in comoving cooerinates

4 votes

General Covariance & CTCs

4 votes
Accepted

Speed of light in the Schwarzschild metric or Gullstrand metric

4 votes
Accepted

What is the equation for the mass of an evaporating black hole over time?

4 votes

Could the metric of the universe have the following form?

4 votes

Beta decay experiments suggesting that neutrinos are massless

3 votes
Accepted

Would bending of spacetime make tides an invisible effect?

3 votes
Accepted

Is there an exact constant value for the speed of light in a vacuum distorted by a gravitational wave?

3 votes

A little question about $F_g = F_c$

3 votes
Accepted

Do separation vectors exist in general relativity?

2 votes

Would a navigator announcing ship velocity whle approaching lightspeed make linear announcements?

2 votes
Accepted

Writing a simple sum with einstein notation

2 votes

What is the tension of the Hubble constant in standard deviations?