The fact that the universe is very small and hot at the beginning, and very large and cold in the far future, is not a problem, argues Penrose, because both the early universe and far future universe contain only conformally invariant, massless particles. ❋ Gordon McCabe (2009)
The cycle of Penrose's model is one in which the universe 'begins' in a conformally invariant state, with zero Weyl curvature, but in which there is a normal derivative to the Weyl curvature. ❋ Gordon McCabe (2009)
The most ingenious cosmological model proposed in recent years is perhaps Roger Penrose's conformally cyclic cosmology. ❋ Gordon McCabe (2009)
We can just as well chose another field conformally scaled otherwise. ❋ Julianne (2008)
Geraint, your papers refer frequently to superluminal recession velocities, which you say are inevitable and open ended at large distances in both the FLRW and conformally Minkowski metrics. ❋ Sean (2008)
I am pretty familiar with the characteristics of different coordinate systems such as FLRW, conformally flat Minkowski, Milne, etc. ❋ Sean (2008)
Again due to limitations the Rindler wedge of spacetime on an accelerated from is a Poincare half plane, which is conformally mapped to the Poincare disk. ❋ Sean (2007)
Please tell me if I recall correctly that linear dilaton backgrounds are conformally flat spacetimes, with a special choice of dilaton field linearly related to the time coordinate? ❋ Sean (2007)
A large "mothership," closely resembling the U.S. Air Force's historic XB-70 supersonic bomber, carries the orbital component conformally under its fuselage, accelerating to supersonic speeds at high altitude before dropping the spaceplane. ❋ Unknown (2006)
If we demand that the worldsheet field theory is conformally invariant (scale invariant), then the so-called beta functions must vanish (this is necessary for us to gauge-fix the metric to the conformal gauge). ❋ Sean (2005)
Why do you demand that the worldsheet field theory is conformally invariant on the quantum level? ❋ Sean (2005)
A large "mothership," closely resembling the US Air Force's historic XB-70 supersonic bomber (note from the editor: now succeeded by the SR-75 Penetrator), carries the orbital component conformally under its fuselage, accelerating to supersonic speeds at high altitude before dropping the spaceplane. ❋ Unknown (2010)
The PC board is conformally coated to reduce the risk of component corrosion. ❋ Unknown (2009)
"Physically, we may think that … in the very remote future, the universe" forgets "time in the sense that there is no way to build a clock with just conformally invariant material. ❋ Unknown (2008)
(note from the editor: now succeeded by the SR-75 Penetrator), carries the orbital component conformally under its fuselage, accelerating to supersonic speeds at high altitude before dropping the spaceplane. ❋ Unknown (2010)
Bellingham (Washington): SPIE Optical Engineering Press. 387 p. Hurdal MK, Bowers PL, Stephenson K, Sumners DWL, Rehm K, et al. (1999) Quasi-conformally flat mapping the human cerebellum. ❋ Unknown (2009)
