Internet

But illegal media files that are downloaded for the price of traffic can be a source of not only inexpensive pleasures. Love ordinary users to free content has been successfully used by online fraudsters. They spread on the web music and movies that contain spyware and 'Trojan' programs, as well as backdoor-virus that perform unauthorized control of your computer. Backdoor-virus costoit usually of two parts: a small program that secretly installed on infected computers, and management program that is run with computer hacker. In this case, it is desirable to choose the antivirus with the function of proactive defense, because it is a pirated content is often thrown to the network the first samples of new viruses.

After downloading and opening the file malware to do anything. Its purpose – to provide confidential information such as passwords, credit card numbers or bank details, and send this information to hackers. Many files illegally distributed over the Internet are infected. Fresh 'Trojan' from the downloaded file will most likely not be recognized by antivirus software and no interference will penetrate your computer. Malicious programs are often hidden in archive files, which also are password protected. Often the antivirus program can not neutralize, or even detect the danger contained in this archive. 'Pest' is detected only after extracting the files, but it may be too late. In addition, there is another danger.

Many users share files and downloaded from the pirated copies, do not even think about that law enforcement is extremely easy to get to them. Anonymity on the Internet – a relative term: when downloading files each user leaves a trail. How to find these tracks very well known employee organizations for the protection of copyright. Therefore rely on the fact that the downloading of illegal content online user will remain undetected, it is not necessary. In the most active disseminators of such information belonging to a field of law enforcement agencies, can cause serious problems … There are various ways of accommodating and, accordingly, downloading illegal content from the Internet: 1. File sharing (or peer, from the English. peer-to-peer) network. Sharing files in this case is directly between users' computers. The necessary software is generally available for free download from the web. File-sharing networks do not use servers for file storage. Client software required to download information is available online for free. They help each participant networks often download files from the computers of various users simultaneously making them available for download to others. This is the main feature of file-sharing networks: the more users are currently downloading a file, the faster the process – in fact in this case, all of them are automatically and distributors. When you send a file, such as video, divided into hundreds of small fragments. These pieces can be simultaneously pumped to several networked computers. On After downloading all the parts are sorted and grouped in the whole file. If illegal work in file-sharing network is fairly high probability of being caught in illegal activities, as the users who downloaded data from peer to peer networks, are also the distributors of illegal content, and representatives of the music and other industries are very interested in combating piracy …

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Telescope Domestic

Some telescopes are manufactured exclusively for the observatories are designed to observe celestial bodies for scientific purposes. Amateur astronomers telescopes themselves become simpler. Range of observation devices much smaller in size, many of them are comparable with binoculars. Such telescopes, of course, are not able to fix the valuable changes in terms of science, but they, nevertheless, will tell you more about the night sky than normal to the naked eye. If you are interested in astronomy, like watching the heavenly bodies, want to learn more about our neighbors – such as the Moon, Mars or Venus – but not yet ready to spend on amateur research serious physical facilities, you have a way out.

Mount the telescope with his own hands! Make a telescope at home, quite simply, if you know how it works and the device. There are two types of telescopes: reflector and refractor. Self-creation of the reflector is quite possible, however, is quite a laborious process. Therefore, we will focus on your refractor. We need two magnifying glass and two rigid tubes of different diameters. Handsets can wring out of ordinary cardboard or drawing paper.

One of the lenses will be placed at the very end of the telescope, its diameter should be about 70 mm., The power – 1 diopter. This is – so-called lens. The lens will collect images of objects that we need in the sky. The second lens – it may be common magnifying glass of magnifying glass – will be our eyepiece – it will zoom in up to We need size. Its diameter should be 30 mm. The eyepiece is placed directly before the eye of the observer, followed by the lens. Smaller diameter pipe is inserted into the pipe of larger diameter. In the lower part of the eyepiece in large – the lens. Focusing the image is provided by changing the distance between the two lenses. This simple device will have sufficient magnification to ensure that you have the opportunity to more closely watch the closest planets, solar system, as well as several deepen their knowledge about the sky.

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