| Last comments |
| heat | sanka | Excellent explanation, much more clear and concise than in some textbooks I have read |
| kinetic energy | sanka | Are you saying that the kinetic energy associated with movement as a whole is the kinetic energy of the continuum? This would be the velocity of the continuum.
My understanding... |
| friction | Redbelly98 | Please ask questions like that by posting in the forums. You can see a list of forum subject areas at www.physicsforums.com |
| electric field | Redbelly98 | James, please ask questions like that by posting in the forums. You can see a list of forum subject areas at www.physicsforums.com |
| friction | james keegan | does static friction occur when twon magnets collide both ways |
| electric field | james keegan | it says you can obtain the electric field by finding the negative of the gradient but how is that possible when there isnt any |
| torque | yawundu95 | how will a lever behave in space suppose 2 forces of unequal magnitude acts on it separately at its ends?
~EDIT(tiny-tim): the net force gives you the acceleration of the centre... |
| time-ordered | vasudevshyam | Schwinger showed us that another really cool way of obtaining time ordered products from the generating funtional can be give by the nth-order functional-derivative:
<0|T[x(t1)x(t2)....x(tn)]|0> = (δn/δJ(t1)...δJ(tn))Z[J]|J=0 |
| Einstein's field equations | tiny-tim | Replaced \bold by \boldsymbol. |
| Einstein's field equations | wolvesdancin | There is a general misunderstanding according to which the hypothesis of the Friedmann–Lemaître–Robertson–Walker (FLRW) metric, would constitute one exact, particular solution of Einstein’s ten field equations of general relativity. However,... |
| permittivity | tiny-tim | Replaced \mathbf by \boldsymbol, to get D E and P sloping instead of upright. |
| Library FAQs | tiny-tim | Minor changes and updates to all three sections. Dead links to latex instruction replaced. |
| virtual particles | tiny-tim | Added new section "Avoiding off-mass-shell virtual particles" to ext expl. No change to Equations (despite the Edit log). |
| time-ordered | tiny-tim | Replaced \bold by \boldsymbol. |
| virtual particles | tiny-tim | Replaced \mathbf by \boldsymbol, to get q and Q sloping instead of upright. Rewrote q-slash and Q-slash as q\hspace{-0.8ex} and Q\hspace{-1.0ex}. No other changes. |
