Recent content by Huashan

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    Metric outside a spherically symmetric source.

    which M do you mean ? ... the one that appears in Schwarzschild metric (1-2m/r ,geometric mass ) or the one that appears in the Newtonian gravitational potential ( the active gravitational mass ) ?...
  2. H

    Metric outside a spherically symmetric source.

    you should consider the weak-field limit ... g00=1+2phi/(c^2)+... where phi is the Newtonian gravitational potential ... when M(mass) goes to zero then g00 goes to one and the metric would be Minkowski metric ...
  3. H

    Deriving the Schwarzschild metric just by using the equivalence principle

    yes I know ... my question is whether we can use Lorentz transformations (in the same form as they are locally in SR ) in constant-linear-acceleration frames or nor ?, if yes how ?...
  4. H

    Deriving the Schwarzschild metric just by using the equivalence principle

    I've read a few papers about derivation of the Schwarzschild metric by using the equivalence principle ( http://cdsweb.cern.ch/record/1000100/files/0611104.pdf" )... but I couldn't understand them completely they assume , According to Einstein’s equivalence principle, that the influence of...
  5. H

    Free Classical Physics Lecture Notes

    YES ..that's right http://qsmile.com/qsimages/8.gif , i think so , it depends on our level...
  6. H

    Free Classical Physics Lecture Notes

    that `s interesting but i think , this http://ocw.mit.edu/OcwWeb/Physics/8-01Physics-IFall1999/CourseHome/index.htm" is better because it contains video and note lectures by Professor Lewin ...
  7. H

    A&C Reference Library - Astronomy & Cosmology Resources

    Wow ... great!... i suggest everybody to see this ..:!) thanks ...
  8. H

    Explore Our Physics Photo Gallery | Share & Discuss Photos

    i still can`t ... , but i`m trying to open it later thanks a lot
  9. H

    Explore Our Physics Photo Gallery | Share & Discuss Photos

    i cann`t open your link :confused: take look that :wink:
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