last updated on October, the 25th. 2015 |
TWIST-OFF, page 1 |
Naïve theoreticians got their own knickers twisted over radio waves blunder. An italo-swedish Team hit the headlines when it announced the discovery of the photon orbital angular momentum and its vorticity in the radio frequency spectrum, in a similar way to what it happens with coherent light beams. (An original research by the University of Glasgow, School of physics, Optics Department. Their "experiment" presented in a scenographic fashion in the venetian lagoon and heralded as having an importance of epic proportion turned out to be a fiasco! Pictured above from left to right: Filippo Romanato,
The bulk of their unsubstantiated claims is well summarized in the Elettra Mari's own deeply flawed PhD thesis : "With this experiment we have shown that the use of orbital angular momentum states might dramatically increase the capacity of any frequency band, allowing the use of dense coding techniques in each of these new vortex radio channels. This might represent a concrete proposal for the solution of the band saturation problem. Moreover, our experimental findings show that the propagation of the physical properties of twisted radio beams is preserved after the propagation. We found that the spatial phase signature was preserved even in the far-field region and for incoherent non-monochromatic wave beams." |
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NATURE, the international weekly magazine of science, is set to lose its credibility after publishing this: PhysicsWorld.com too got it-self entangled with it by publishing this: The IEEE couldn't wait to join in the club: And the BBC has soon followed suit: And so did Phys.org: Even the International Journal of Antennas and Propagation has tripped over it: The SAO/NASA Astrophysics
Data System (ADS), which is a digital library portal for researchers
in astronomy and physics, operated by the Smithsonian Astrophysical Observatory (SAO) under a NASA grant, has
uncautiously allowed the Drunk photons' Team to publish on its pages. Here is the abstract:
Last, but not least: the I.T.U. (International Communication Union) thinks it has witnessed an "experiment on Radio Orbital Angular Momentum (OAM) with potential for drastic improvement in spectrum efficiency" |
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To the benefit of all, we have transcribed and translated into english what Fabrizio Tamburini has said on this brief but pregnant videorecording. N.B. We have numbered each of his sentences and have placed question marks next to them to indicate all the things that he has stated and taken for granted, although, they have no place in recognised physics. 1) ... electromagnetic vortices or optical vortices are nothing else than other properties, other degrees of freedom (??? Q1) of the electromagnetic field. |
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Here below is an article appeared on the news section of the Bristol University school of physics web site, back in June, 2011. What a shame! |
A new type of radio transmitter, based on a general feature of waves identified by Michael Berry and John Nye in 1974, has been invented by Fabrizio Tamburini of Padova and Bo Thide of Uppsala. On Friday 24 June it was launched at a splendid though somewhat surreal ceremony in the Palazzo Ducale in Venice, culminating in a string-and-sealing-wax demonstration in which signals were sent to the Palace from a lighthouse on the other side of the Canale di San Marco. Image thanks to Professor Sir Michael Berry: twisting radio waves across the Canale di San Marco. |
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March 2010, in this interview given to a journalist from RAI's TG-Leonardo, Fabrizio Tamburini, in an attempt to describe what he thinks they have found, talks about "drunk photons". Unfortunally, it wasn't the photons to be drunk at that time! |
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February the 14th. 2011. Fabrizio Tamburini interviewed by the I.N.A.F. confesses having him-self hammered hard at paraboloidal reflectors in order to make special antennas out of them. |
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April the 21st. 2011. Fabrizio Tamburini being celebrated as the father of something heralded as an historical discovery, at the Telecom Italia's Future Center in the ancient monastery of San Salvador near Rialto in Venice. |
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June the 24th. 2011. Filippo Romanato on this occasion claims they have produced "useful inventions". However, none of what he has envisaged has found a practical application to date, nor they have made any further attempt to demonstrate what they claim. |
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March the 2nd. 2012. Fabrizio Tamburini interviewed by the I.N.A.F. states they have filed an "huge patent application". |
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March the 8th. 2012. On this other occasion, during a press conference in Cà Farsetti - Venice, Fabrizio Tamburini, states that their experiment, as carried out over the venetian lagoon, has been validated by the "European institute of physics in London". Unfortunally, there is no such an institute by that name in London, nor elsewhere! |
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For their unsubstantiated claims the Team has come under fire from several scientists, who have adopted different approaches to the matter according to their own field of expertise. Boffins biff over 'twisted radio' http://www.theregister.co.uk/2012/11/19/claim_and_counterclaim_over_twisted_radio/ Comment on "Encoding many channels on the same frequency through radio vorticity: first experimental test " by Michele Tamagnone, Christophe Craeye and Julien Perruisseau-Carrier Twisted Radio Waves and Twisted Thermodynamics by: Laszlo B. Kish, Robert D. Nevels'Twisted light' data-boosting idea sparks heated debate "Something not worth the paper it's written on", was the harsh comment on this issue by Francesco Errante, from Radiondistics. |
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Italian university to join the race for actively damaging the image of the scientific research in Italy! Overwhelmingly enthusiastic boffins Naïve theoreticians from the Department of physics and astronomy of the University of Padua and the Swedish Institute of Space Physics have covered themselves with ridicule after claiming they have found a way to force photons to follow an helicoidal trajectory in the free space, in a circular-vortex-like fashion, by simply getting a conventionally generated plain wavefront to bounce back off a portion of a purposefully distorted paraboloidal reflector (pictured below). ![]() ![]() They have also claimed that by doing so, a number of radio carrier
signals having identical frequency could travel on the same path and direction by means of circular
vortex-like trajectory differing from each other only by the phase of their vortex, each carrying a different
set of informations, thus obtaining more channels in the same frequency. |
Source: Radiondistics.com |
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Following the success of our initiative, we have decided to open up a discussion board on this same web site. |
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Drunk photons and the myth of the electromagnetic vorticity, vorticita elettromagnetiche, momento angolare orbitale, fabrizio tamburini, dipartimento di fisica, universita di padova, astrofisico, university of padua, bo thide, Swedish Institute of Space Physics, Uppsala, Sweden, horizontal polarization, vertical polarization, circular polarization, vortex, helix, modulation, multiplex, multiplexing polarizzazione orizzontale, polarizzazione verticale, polarizzazione circolare, vortice, elicoide, modulazione, Angular momentum radio, Reply to Comment on Encoding many channels on the same frequency through radio vorticity: first experimental test,Sub-Rayleigh optical vortex coronagraphy,iShake Mobile Phones as Seismic Sensors, fabrication and testing of phase masks for optical vortex coronagraph to observe extrasolar planets,protesta studentesca contro tagli alla scuola pubblica ed universita, contro i baronaggi e le privatizzazioni.Thidé B. Tamburini F. Then H. Someda C. G. Elletra Mari Parisi G. Spinello F. Romanato Francesco Sponselli A. Bianchini A. Swartzlander G. A. Barbieri A. C. Dashti S. Reilly J. Bray J. D. Bayen A. M. Glaser S. D. Prasciolu M. Massari, M. |