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Sunglasses allow better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light. Typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions, but turn into sunglasses when in bright light. Most sunglasses do not have corrective power in the lenses; however, special prescription sunglasses can be ordered. Specialized glasses may be used for viewing specific visual information (such as stereoscopy) or 3D glasses for viewing three-dimensional movies. Sometimes glasses with no corrective power in the lenses are worn simply for aesthetic or fashion purposes. Even with glasses used for vision correction, a wide range of designs are available for fashion purposes, using plastic, wire, and other materials. Today's building codes state spaces using furnaces will need to have means for getting together again combustion air as it used. Newer homes have ducting installed, during construction, thats liable to bring oxygen on the surface to a area close to the furnace. This ducting, usually called constitute air duct, or combustion make-up air, is sized according to the capacity in the furnace. The whole package consists of 8 detailed videos which you can access online without notice you'll take pride in is sold with 4 bonuses that are a police oral board exam guide, 11 multiple choice video tests, 8 professionally produced videos simulations therefore you obtain a special hotline where you can question any question you've. The bridal photograph to the left illustrates a good example of high fashion wedding photography. The picture resembles a perfume advertisement with its ethereal quality and artistic pose, yet it captures the bride and the quality of the dress to perfection. The Samsung ES8000 SMART TV contains dual microphones and a HD camera so that it is the perfect tool for in person (Skype) calls along with its revolutionary voice, gesture and face recognition you don't need to travel searching within the couch for your TV remote. With a simple 'Hi TV' you are able to turn the ES8000 on then simply say something similar to 'Web Browser' to look on the web and do whatever you decide and please. From here the gesture recognition gets control with a wave of one's hand you'll be able to select applications, use the Internet and improve the volume.