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lurscher
  • Member for 13 years, 2 months
  • Last seen more than a week ago
33 votes
Accepted

Can lightning be used to solve NP-complete problems?

23 votes

At what fraction of the speed of light have people traveled?

18 votes

Is quantum entanglement functionally equivalent to a measurement?

17 votes

Why are mirror images flipped horizontally but not vertically?

15 votes

Are gravitational waves longitudinal or transverse?

14 votes

Can one do the maths of physics without using $\sqrt{-1}$?

12 votes

Why are there only derivatives to the first order in the Lagrangian?

12 votes

Why can't a spaceship accelerate for ever? Since there is no friction in space

12 votes

What technology can result from such expensive experiment as undertaken in CERN?

11 votes

What is the highest possible frequency for an EM wave?

10 votes

How fast does gravity propagate?

10 votes

Define Pressure at A point. Why is it a Scalar?

9 votes

On the nature of the collapse of the wave function

9 votes

how does a helicopter get forward thrust?

8 votes

Does quantum mechanics violate the equivalence principle?

8 votes
Accepted

Can low-gravity planets sustain a breathable atmosphere?

7 votes

Number theory in Physics

7 votes
Accepted

dynamic casimir effect

7 votes

Faster-than-light communication using Alcubierre warp drive metric around a single qubit?

7 votes

What makes the stars that are farther from the nucleus of the galaxy go faster than those in the middle?

6 votes

Why Negative Energy States are Bad

6 votes

Can you put a magnetic ball into a hollow magnetic sphere?

6 votes

Is it possible for a physical object to have an irrational length?

6 votes
Accepted

What's the physical difference between the quantities $\langle v_{i}v_{j}\rangle$ and $\langle v_{i}\rangle\langle v_{j}\rangle$?

6 votes

Detectability of interstellar messages

5 votes

Can a wormhole be created if it has not always existed?

5 votes

Why is Xenon favored as the propellant in electric thrusters?

5 votes

Is spacetime discrete or continuous?

5 votes

Can an object move without relying upon Newtons third law?

5 votes
Accepted

Why should one expect closed timelike curves to be impossible in quantum gravity?

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