Vorticity in optical astronomy

Posted by MD     Category: Atronomia

I fusilli di luce del dottor Fabrizio Tamburini

Fabrizio Tamburini, precarious researcher of the Department of Astronomy at the University of Padua, made a sensational discovery that can change the way you look in astronomy, but that will have important implications in other fields, from medicine to Digital Terrestrial.

Tamburini’s theory is based on the concept of vorticity optical developed many years ago by Ettore Majorana. The vorticity is a particular optical properties of light thanks to which it can twist and drag the material particles in a vortex. Therefore, the phenomenon was also baptized with the bizarre names of “fusilli light” or “particles drunk.”

According to the theory developed by Tamburini if it gives the light a certain optical vorticity you get a capacity of optical instruments such as telescopes and microscopes. And the resolving power of any optical instrument increases by more than an order of magnitude: this means that, for example, if they apply the vorticity optic to the Hubble telescope, which has a diameter of 2.4 meters, it may look like the stars if you were using a telescope with a 24-meter opening.

And the theory of Tamburini can be applied not only to optical instrumentation, but also to radio waves, in this way it will be possible to fit in a single frequency up to 100 channels, such as the digital terrestrial, against the current 5.
Despite a discovery nomination for the Nobel Prize, Tamburini remains a precarious.


What are quasars?

Posted by MD     Category: Atronomia


Da Wikipedia, the free encyclopedia:  http://it.wikipedia.org/wiki/Quasar

Un quasar (contracted of quasi-stellar radio source, almost stellar radio source) is an astronomical object that looks like a star in an optical telescope (ie a point source) and that shows a large red shift (redshift) del suo spettro. The general consensus is that this large redshift is of cosmological origin, that is the result of Hubble’s law. This implies that quasars are very distant objects and should emit more energy than dozens of normal galaxies. In fact, quasars are considered the brightest objects in the observable Universe and one of their characteristics is to emit the same amount of radiation in almost the whole electromagnetic spectrum, from radio waves to X-rays and gamma.

Some quasars show rapid changes of their brightness, which implies that they are very small (an object can not change brightness faster than the time it takes light to pass through it). If the cosmological interpretation is correct, the enormous brightness and the sudden flare-ups of a quasar are totally unimaginable to the human mind: a quasar medium can incinerate the entire planet Earth from many light-years away and emit so much energy in one second how much the Sun emits a hundred thousand years.