increasingly perfected invisibility cloak 
This progress was made possible by the development of a new set of mathematical algorithms to guide the design and manufacture of exotic composite materials known as metamaterials. The invisibility cloak, which has inspired many stories and science fiction, may soon become a reality. After the completion of a prototype in 2006 that mask an object from visible light, a group of engineers at Duke University has produced a new type of device, much more sophisticated, which would, reportedly, to hide a wider range of frequencies of electromagnetic radiation. latter progress has been made possible by the development of a new set of mathematical algorithms to guide the design and manufacture of exotic composite materials known as metamaterials. These materials can be engineered to have features not easily found in natural materials that can be exploited to obtain a range of structures that give invisibility. These structures can in fact "lead" the electromagnetic waves around an object, to let them emerge on the other side as if they were passed through a volume of empty space. The report of the latest results of the Duke is now published on Science magazine signed by Ruopeng Liu, who developed the algorithm, together with Chunlin Li and David R. Smith. Once the algorithm, the practical realization of the device took only nine days, a very short time, especially when compared with the four months required for the first and most rudimentary prototype. "The difference between the original device and the latter model is like that between day and night," said Smith. "The new device can cover a broad spectrum of waves - virtually without limits - and go with more easily from infrared to visible light. The approach that we used should allow us to expand and improve our ability to cover different types of waves. " Intuitively, the principle of the invisibility cloak is similar to the phenomenon of mirage, seen from the front in the distance in one day heat. "We see water on the street or on the sand, if you're in the desert, but in reality it is a reflection of the sky," said Smith. "In our case the 'mirage' is to see the road behind the 'cloak'. In fact, what we are creating a mirage engineered." Applications that can be taken now, however, are far from the fantasies of science fiction, once perfected the device could go to improving wireless communications or to be masked by other forms of electromagnetic vibrations. Source:
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... We thought that in the flask. 
- We ended up in a hurry ... that the duties to go play football in the house;
- ... forced us to the rule of "flying porters "or" Who is para ",
- us ..." gatekeepers flying "e. .." score from midfield is over? " - That is true ... everything!
- us ... when we did the teams, We were chosen first if we were really the best, the most important;
- us that ... the last one that was chosen was definitely intended to go door
- us ... we always had a nickname liable infamous but no one is offended;
- us ... who comes first ten won;
- us ... while we pretended not to hear the call of the mother when the darkness loomed, there was always someone who said: "who marks the final win" regardless of the score was at that moment that maybe 32 to 1,
- us that ... we lived in terror of the times "Espadrilles" with which the foot could not play football ;
- us ... that if we had to walk the Adidas Tampico we felt more 'stronger Pele;
- us ... but we had to walk the Tepa Sport,
- us who knew ... the leather ball as it was done because we saw him on TV only to blacks and white hexagons;
- us who ... understood the meaning of the second shirt when sent in black and white TV images of Milan-Inter derby
- us ... or SUPER TELE ( in the absence of another) or Elite (standard) or the TANGO Dirceu luxury or if he went on holidays
- us ... we could not sit on the ball otherwise it becomes oval
- us that ... the owner of the ball ever played even though it was a duffer and wrong even in the door;
- us ... even without the cross we did not need the slow motion to see if it was a goal. "Goal or rigor" was always all agreed that we
- ... is the third penalty corner;
- us that ... "followed by a penalty goal is goal";
- us that ... "are Odd I can play? " - "Oh I do not know the ball is not mine (in the case where the claimant was a poor)";
- us that ... "do me in?" - "It is just that or else we will find another odd"
- us ... recognizes that even if the players on the shirt did not say the name;
- us ... "Apple Scruffs" ( Oriali-Ligabue) was already a way of life;
- us ... was the No. 1 goalkeeper, the No. 2 and No. 3 on the left and right fullbacks, No. 4, the median of thrust, the No. 5 stopper, No. 6, free, the No. 7 's right wing, numbered 8, a midfielder, No. 9, the striker, the No. 11 handed another possible point, No. 10, the midfielder with the captain's armband because it was inevitably more 'good;
- us ... because a player enters the national had to make a drawing of 2 / 3 years to high-level
- us foreigners ... more than 2 per team and knew them all;
- us ... we slept with the Panini stickers under the pillow;
- us ... when we opened the bags uncut pray not find triplone quadriplone or masts; 2nd legendary goalkeeper of Juventus who had never played a game because of Zoff;
- us ... we had a liking Van de Korput Bruscolotti for the name and because he seemed older than our father
- us ... we watched the football on TV only on Sunday and Wednesday;
- us on Saturday morning ... we were terribly tired because night before we had seen after Cesare Cadeo Premiatissima;
- us who ... Sunday at a time of 19.30 saw a football game;
- us that ... we lived in the 90th minute of waiting and felt protected the father figures of Paul Valenti, Necco from Naples, Bubba from Genoa, Florence Giannini, potty from Milan, from Turin Castellotti, Pasini from Bologna, Tonino Carino from Ascoli, Stroppa "carryover" from Bari and Lecce
- us .. . the stock of Trieste is proud to present ... papapà papapà ... ... ... papapapaaaaaa paparapà;
- excuse us ... Ciotti :..." Ameri, Ameri .... excuse to resounding Cibali "(which in our imagination was more 'famous Catania);
- us that ... the whole team of' international protection recedes to 16 m (always Ciotti)
- us that we remember ... the celebrations of the No The Sunday Sport 1000;
- us that the DS could ... see the services of the league, the goal of the series B, the Grand Prix, Tennis. Basketball and volleyball without having to put up with hours of talking to see 4 goals;
- Galeazzi us ... we have seen thin;
- us ... "the foot of the proletarian Franco Baresi (Beppe Viola);" Maradona hand sewn under the left foot "(Gianni Brera);
- us ... we went to her friend the heart of what we liked and asked her:" You say to Mary if you want to put with me? " The next day he returned and the answer was always the same: "He said we must think ..."
- us ... we're still thinking about Maria!
- us ... we had always all appointments, even without mobile phones;
- us ... we now live far away, but when we go home and turn the corner we hope ever to meet with the ball in a plastic bag;
- us today ... smile when you come up on TV the most incredible polls like, "Who was the 'strongest player of all time: Pele or Maradona? Pele without considering that we have seen more of the same 4 / 5 goals;
- us ... if we meet on the street want to invest Biscardi;
- you that this toy ... there you have it broken ... ugly bastards!
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