Тематический сборник текстов для чтения (английский язык). Соснина Е.П - 42 стр.

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42
1. A large, prominent, display--generally a big-screen television (see Liquid crystal
display television) or possibly a projector, often HDTV capable.
2. One or more audio/video sources . High quality formats such as DVD or Laserdisc
are preferred, though old home cinema setups use VHS.
3. An audio system that is capable of surround sound (at least 5.1). This usually consists
of several speakers and a subwoofer. Sometimes a specialized decoder is used to allow the
playback of newer surround-sound formats.
4. Comfortable seating and organization to improve the cinema feel. This might include
several comfortable recliners and curtains or subdued room lighting to enhance the
experience.
So me home cinema enthus ias ts will go so far as to build a dedicated room in the home
for the theater. Such a room is often decorated to resemble an actual cinema, with
specialized furniture, movie posters, or a popcorn or snack machine. These more advanced
installations often include sophisticated acoustic design elements, including "room-in-a-
room" construction that isolates sound and provides the potential for a near ideal listening
environment. These installations are often designated as "screening rooms" to differentiate
from s imple r ins tallations .
Thes e days it is poss ible to purchase "home theater in a box" kits from various
promiment electronics companies. These kits include a set of speakers for surround sound,
an amplifier/tuner for adjusting volume and selecting video sources, and sometimes a DVD
player or VCR. Though these kits pale in comparison to a true custom built home cinema,
these kits are attractively priced. One needs only to add a television and some movies in
order to create a simple home theater.
Text 4. Vacuum cleaner
A vacuum cleaner is a device that uses an air pump to suck up dust and other small
particles of dirt, usually from carpeted floors. Most homes with carpeted floors possess a
domestic model for cleaning. The dirt is collected by a filtering system or a cyclone for later
dispos al.
The first hand-powered cleaner using vacuum principles may have been the
"Whirlwind", invented in Chicago in 1865–unfortunately, its technical details seem to be

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