Recent content by Italian_Mike

If vacuum energy has a non-zero value, is the vacuum energy density (vacuum energy over a given volume of void space) being reduced over time due to the expansion of the Universe? If so, is there any consequence on the particle-antiparticle creation/annihiliation process? Will there ever be a...

Thanks for the reply. If I understood correctly, as no significant tidal forces are acting on the bar, then it is possible to associate a local inertial frame to this body. So, for an observer in A the light will reach B in approx. 3.3 x 10-9 sec, just as if the inertial frame was outside the...

The question is as follows: suppose I throw a metal bar 1m long inside the event horizon of a supermassive black hole of 1 million solar masses. At both ends of the metal bar there is a light source. (I chose a supermassive black hole to rule out any spaghettification process: with some quick...

Hi, nice to meet you! I'm Mike, a physicist from Italy. Actually I'm more an engineer in my job, but I still like to discuss and get informed about physics theories and developments. Just found your nice community and signed up!