Physiks lover

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	727 reputation	bio	website		visits	member for	1 year, 10 months
111 badges		location			seen	Apr 25 at 13:03

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21 Questions

views newest activity votes

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895

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Does a photon have a rest frame?

feb 26 at 19:54 Xabier Llobregat 26

votes

answers

kviews

Is Einstein's 1916 General Relativity paper a recommended way to start learning about the subject?

general-relativity

jan 24 at 12:08 Eduardo Guerras Valera 1,722

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answer

299

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The bar tender says we don't serve Tachyons around here?

soft-question

sep 23 '11 at 23:43 Physiks lover 727

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564

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Proofs that every professional physicist should know

soft-question

nov 6 '11 at 14:15 Marty Green 819

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answers

139

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Explanation for $E~$ not falling off at $1/r^2$ for infinite line and sheet charges?

electrostatics

jul 27 at 2:36 DJBunk 1,751

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answer

378

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Can relativistic kinetic energy be derived from Newtonian kinetic energy?

classical-mechanics special-relativity

apr 13 '12 at 17:33 Physiks lover 727

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322

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Is (0,0,0) an undefined vector?

vectors

nov 11 '11 at 22:41 David Zaslavsky♦ 27.4k

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answer

187

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Is there a Newton's third law for the em field?

classical-mechanics classical-electrodynamics

oct 25 '11 at 22:51 fénix 355

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182

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Are the principles of space-time homogeneity and Isotropy independent of one another?

general-relativity spacetime symmetry differential-geometry

dec 27 at 23:38 ungerade 438

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answer

191

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Which main physics journals publish the main types of physics papers? [closed]

soft-question

dec 17 at 21:09 Manishearth♦ 7,991

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193

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Can the Euler-Lagrange equations be derived from an infinitesimal Principle of Least Action?

lagrangian-formalism variational-principle

oct 26 at 23:32 John McVirgo 1,676

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212

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Calculate relativistic boost to COM frame from two arbitary velocities?

classical-mechanics particle-physics special-relativity

may 27 '12 at 3:47 Ron Maimon 44.8k

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336

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Is the electric field zero inside an ideal conductor carrying a current?

electromagnetism electric-field

may 20 '12 at 21:44 Jano 11

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314

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Is the change in kinetic energy of a particle frame independent?

classical-mechanics special-relativity

apr 6 '12 at 4:48 Ron Maimon 44.8k

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159

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Must the Lagrangian always be known for the Euler-Lagrange equations to be of any use?

classical-mechanics lagrangian-formalism

mar 16 at 22:49 Qmechanic♦ 17.3k

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283

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What is meant by potential energy for a particle in a field?

definition potential-energy

mar 16 at 19:41 Community♦ 1

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329

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What was meant by the 'ponderomotive force' as understood by Minkowski?

electromagnetism forces

feb 28 at 19:17 Kitchi 1,945

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Is the stress finite at the centre of a spherical continuous charge distribution?

electromagnetism electrostatics

aug 25 at 0:00 Community♦ 1

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Why isn't the force modelled which confines excess charge to remain inside a conductor?

electrostatics

may 16 '12 at 15:19 Physiks lover 727

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559

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Why is there a $\frac 1 2$ in $\frac 1 2 mv^2$?

newtonian-mechanics energy work

may 7 '12 at 9:58 Warrick 3,973

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answer

428

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Problems that Lagranges equations of the 1st kind can solve whereas the 2nd kind can't?

classical-mechanics lagrangian-formalism

jan 19 '12 at 13:12 Qmechanic♦ 17.3k