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WinRAR 4.00 Beta 4 (64-bit)RARLab - 1.50MB (Shareware) - |
WinRAR è un un'utilità di archiviazione che supporta completamente archivi RAR e ZIP ed è in grado di decomprimere gli archivi CAB, ARJ, LZH, TAR, GZ, ACE, UUE, BZ2, JAR, ISO, 7Z, Z. Crea archivi di dimensioni più ridotte rispetto alla concorrenza, risparmiando spazio su disco e costi di trasmissione.
WinRAR offre un'interfaccia grafica interattiva utilizzabile con mouse e menu così come un'interfaccia da riga di comando. WinRAR è più facile da usare rispetto a molti altri programmi di archiviazione grazie a una speciale procedura guidata integrata che permette l'accesso immediato alle funzioni di base di archiviazione attraverso una semplice procedura di domande e risposte.
WinRAR consente di crittografare gli archivi con AES (Advanced Encryption Standard) con una chiave a 128 bit. Supporta i file e gli archivi fino a 8.589 miliardi di gigabyte di dimensione. Offre inoltre la possibilità di creare archivi autoestraenti e multivolume. Con il record di recupero e i volumi di ripristino è possibile ricostruire anche gli archivi danneggiati fisicamente.
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![Scientists are getting very close to creating an actual invisibility cloak, as separate research teams over the past week have revealed significant advancements in the area. From an invisibility cloak scaled up to be able to hide a person to a quantum invisibility cloak that can hide objects in time, there is no better moment for fans of H.G. Wells and the Harry Potter franchise than this one. The invisibility cloak that uses time was designed by Purdue University scientists. Unlike the spatial cloak we all saw in Harry Potter, this device uses time cloaking, a relatively new concept based on the idea that in some places in time, the things that happen are not picked up. Since nobody can tell that these things occurred, it’s like they never happened. The concept still has a long way to go before it turns into reality, although scientists have been able to cloak small electrical signals so far. The technology may be difficult to grasp, yet researchers think that if successful , it will be a major breakthrough in making quantum information computing and storage very successful. Another research team, meanwhile, detailed how to make an invisibility cloak to hide large objects, including a person. The New York University of Rochester scientists used a conventional arrangement of lenses and mirrors to drive the light around the area they want to hide from view. The human-scale cloak also manages the impressive feat of hiding items across the entire optical range. But it still faces one major problem: that is only works in one direction, which means the hidden object becomes visible if the viewpoint changes. Nonetheless, this large-scale cloak could be successfully used to hide satellites in orbit and other huge objects. And a Shanghai-based team of researchers unveiled another invisibility cloak which they claim can be adjusted to make items invisible from any line of sight. The scientists demonstrated the cloak by making a pet goldfish and a cat disappear. According to the Chinese team, the device may have important applications in security, surveillance and entertainment. http://www.youtube.com/watch?v=YNO9-DYCi2U With all the new ideas and research, it seems we will see an actual invisibility cloak in use very soon. What do you think of this technology? What would you do if you had your very own invisibility cloak? [Image via Mental floss]](http://cdn.techbeat.com/wp-content/uploads/2013/06/invisibility-harry-120x80.jpg)