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The right subwoofer selection? Interesting? This way.
Views The subwoofer for the house can be of two kinds: The most convenient and suitable for home subwoofer is an active subwoofer. This is explained by the built-in bass amplifier. Main characteristics How to select the correct one Before choosing a subwoofer for your home, pay attention to the following points: Frequency range (Hertz). The frequency range that the subwoofer can reproduce is divided into three octaves: deep bass (20 to 40 Hz), middle bass (40 to 80 Hz), high bass (80 to 160 Hz)...
5 лет назад
Machine history as any device
The machine is a link in the human-machine-machine-processed material-environment system. The car possesses a number of the properties characterizing its technical level and technical condition on which productivity and power consumption depend...
5 лет назад
History of the origin of playing cards
The beginning. Those cards, which we got used to from childhood, came to us in the early 17th century through Poland and Germany from France. The "Russian deck" of 36 cards is a cut (i.e. starting with sixes) 54 card "French deck". Approximately in 15-16 centuries, the French deck has completely developed in a habitual kind to us and since then practically did not vary. Changes of the last time are the appearance in 1830 of a symmetrical figure (earlier card figures were drawn in full height),...
5 лет назад
Audio systems, essence, choice. The most optimal article on the choice and parsing you need.Pt 2.
This is the second article about the choice of audio system. Here we will clarify all the nuances and understand the "pitfalls" of all this. Package contents This is a key parameter, as it is the composition of the speaker set that determines the suitability of the system to your needs. Why do you need an audio system? If you are an avid music lover, collecting a collection of rare discs or vinyl with "beats" and Michael Jackson, then you can use a traditional stereo pair (or triphone set - two front speakers and a subwoofer)...
5 лет назад
Audio systems, essence, choice. The most optimal article on the choice and parsing you need.Pt 1.
The big beginning Hi-Fi - how much in this word ... When in the late 80's the first Japanese audio systems came to the USSR, it became fashionable to assemble complete sets with good sound. It's been a long time since then, and Hi-Fi audio systems have been used not only to listen to music but also to accompany movies and computer games. And most importantly, Hi-Fi is now available to virtually anyone. It's only a question of needs and sound quality. Many people sooner or later face the need to improve the sound of their audio equipment...
5 лет назад
Loan and how it became a big part of our lifes
The history of the loan begins in ancient times. It is believed that crediting already existed in Assyria, Babylon and Ancient Egypt. At that time, 3,000 years ago, some gave and those who borrowed, and, as a rule, according to the laws in force, the debtor, who failed to pay off his debt in time, became a slave to the creditor. In the Middle Ages, the church opposed interest earnings. It was believed that such income was a sin, since interest payments were a payment for time, and time was the sole responsibility of God...
5 лет назад
The real story of first car in the world.
Prehistory The design of the car was developed by a famous Russian inventor Ivan Kulibin, who used rolling bearings, flywheel, brakes and even a gearbox in his self-rolling wagon. The first in the world In 1886, there was a real turning point in the history of the automotive industry. German engineer Carl Benz received the patent #37435 for his invention - a self-propelled crew with a gasoline engine. This year is considered the year of creation of the first car in the world. Interestingly, around...
5 лет назад
Brief history of internal combustion piston engines
The immediate precursor of piston combustion engines is the steam engine of Polzunov and Watt. The crank-rod and gas distribution mechanisms are borrowed from it. For the first time the steam engine on self-propelled machinery was used in the middle of the XIX century on a tracked tractor made by a serf farmer of Voronezh province Shamshurenkov, but because of its size and inconvenience of use, it was not popular. The first piston internal combustion engine was built by French inventor Lenoir in 1860...
5 лет назад
Programming consciousness or how to get yourself to do something.
It is safe to say, even without analyzing the culture in which you live, that various memes that "programmed" consciousness influence the course of life by any methods at their disposal. For the same reasons, mental viruses should be taken very seriously and rationally. Mental viruses infect your consciousness with various methods - ideas, attitudes, beliefs. As a result, in your life, you do not get what you wanted. One of the methods by which the memes that programmed your subconscious influence your future life are self-realized and predictable enough...
5 лет назад
Do you think quantum physics is complicated? Here and now you'll learn its essence in three words.Pt 1.
Have a nice reading, I hope you all have some tea and cookies. Let's get started. You have probably heard many times about inexplicable secrets of quantum physics and quantum mechanics. Its laws bewitch mysticism, and even physicists admit that they do not understand them to the end. On the one hand, it is interesting to understand these laws, but on the other hand, there is no time to read multi-volume and complex books on physics. I understand you very much, because I also love to know and to search for the truth, but there is not enough time for all the books...
5 лет назад
Have you ever wondered if I want to be a witch or who are witches? Even if not, it's interesting to read.
Story takes start in medieval Western Europe In mythological notions, all holders of magical knowledge were considered witches. They possessed the ability to influence people (vedovstvo), nature, and had the opportunity to commit supernatural acts - to penetrate through closed doors, werewolves, steal hearts from people, fly in the air, cause damage to crops and livestock, cause disease. They were told that they had an opportunity to make an alliance with dark forces and the devil, and also to serve him and have sexual relations with him, to seduce all believers and destroy their souls...
5 лет назад
Have you ever wondered how your keyboard or mouse was designed? Asked? Please read this, this is part of your story.
Have you ever wondered how the mouse and keyboard came into our lives? As you and I are accustomed to seeing them, these input devices are relatively new. It's about the keyboard, which now can be found in almost every home. Both the keyboard itself and the keyboard layout have undergone multiple changes since it appeared on the typewriter in 1873. Lore of keyboard with some myths and facts. The most common keyboard layout "QWERTY", called the first letters of the upper right row of keys, appeared on one of the first American typewriters company "Remington"...
5 лет назад