Garth
Science Advisor
Gold Member
- 3,580
- 107
Thank you for that link.
I find their version of the "Morrison" argument does not stand up either in SCC, in which gravitational red shift is caused by the apparatus gaining energy, not the photon losing it, or in general. The general criticism of their argument would be that they have combined a classical concept of potential energy with GR, which is logically inconsistent; although other reputable authors do the same, such as MTW (page 187) and Weinberg (page 85), only Wald gives the correct GR interpretation (page 136/7)!
Garth
I find their version of the "Morrison" argument does not stand up either in SCC, in which gravitational red shift is caused by the apparatus gaining energy, not the photon losing it, or in general. The general criticism of their argument would be that they have combined a classical concept of potential energy with GR, which is logically inconsistent; although other reputable authors do the same, such as MTW (page 187) and Weinberg (page 85), only Wald gives the correct GR interpretation (page 136/7)!
Garth