tag:blogger.com,1999:blog-5855712809960952520.post101965337008733829..comments2023-10-07T05:09:00.434-04:00Comments on Ciencia e Independencia: No hay nada de nadaRamón López Alemánhttp://www.blogger.com/profile/08055541093681393919noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5855712809960952520.post-71852646214666434692007-10-01T11:27:00.000-04:002007-10-01T11:27:00.000-04:00ON THE PHYSICAL NATURE OF VACUUM Casaubon...ON THE PHYSICAL NATURE OF VACUUM<BR/> Casaubon J. I.<BR/> Facultad de Ciencias Exactas y Naturales. Universidad de Belgrano y CONICET<BR/> <BR/><BR/> Abstract<BR/> <BR/><BR/> Vacuum is not nothingness. I suggest that refined macroscopic experiments be implemented to attempt measuring some physical character of vacuum.<BR/><BR/> <BR/><BR/> <BR/><BR/>Vacuum is a space in which there is a low pressure of gas, i. e. relatively few atoms or molecules. A perfect vacuum would contain no atoms or molecules, but this is unobtainable as all the materials that surround such a space have a finite vapor pressure (1).<BR/><BR/><BR/><BR/>The vacuum state is the ground state in a relativistic quantum field theory. A vacuum state does not mean a state of nothing. Because one is dealing with quantum mechanics, the vacuum state has a zero-point energy, which gives rise to vacuum fluctuations. The existence of vacuum fluctuations has observable consequences in quantum electrodynamics (1)<BR/><BR/> <BR/><BR/>Vacuum is not nothingness (2). This is true for several reasons:<BR/><BR/> <BR/><BR/>1)Vacuum can transport electromagnetic waves whereas in nothingness nothing is to be transported.<BR/><BR/>2)While in vacuum one can put objects in nothingness nothing can be put.<BR/><BR/> <BR/><BR/>Hence vacuum is something physical.<BR/><BR/> <BR/><BR/>We know it is not ¡°ether¡±, nor: i) fixed (according to the Michelson-Morley experiment); neither: ii) pulled by earth because this would go against the aberration of light which comes from stars.<BR/><BR/>Vacuum is not pure space because space is a mere ideal mathematical construction. I suggest that refined macroscopic experiments be implemented to attempt measuring some physical character of vacuum. Only two macroscopic naive experiments occur to me at this stage: i) to check if between two hollow spheres of the same mass there is a minor deviation of gravitation due, for instance, to vacuum-vacuum interaction ii) the same for a double Torricelli <BR/>References<BR/> <BR/><BR/>1) Oxford dictionary of Physics. Edited by Alan Isaacs. Oxford Univ. Press. Oxford. 1996. <BR/><BR/>2) Sacchi M E, El espacio enigmático. Ed. Basileia. Buenos Aires. 1998.<BR/>-----------------------------------<BR/><BR/>Cuando digo que el espacio es infinitamente divisible lo es EN POTENCIA no en acto.<BR/><BR/>Cuando digo puedo contar hasta infinito o que los números naturales son infinitos sólo digo que mi mente puede encontrar uno mayor and so onJuan Ignacio Casaubonhttps://www.blogger.com/profile/00506628292834669347noreply@blogger.com