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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. The EGR system routes a number of the exhaust gases (6 ? 10%) from the EGR valve, last on the Intake System, and ultimately within the combustion chamber. The exhaust gases are inert i.e. they cannot burn in the combustion chamber; also, the exhaust gases take up a number of the space which would preferably be taken with the intake air. This reduces the volume of intake air readily available for the combustion process during each Power Stroke; which in turn decreases the peak combustion temperatures. This brings about lower NOx emissions. The British Glass entry features its three-year programme to facilitate collaboration between glass manufacturers and government to create a decarbonisation action plan – setting out the sectors’ priorities for energy efficiency and decarbonisation in areas such as research and development, technology implementation, energy infrastructure, recycling, skills and funding. In April of this year all ten of the UK’s large-scale glass manufacturers signed up to the voluntary action plan. This new launch by Micromax is loaded with a fantastic group of features which can be advanced because of its age. Measuring 123mm x 56mm x 2mm and weighing just 115 gms, this cellular phone is a real looker! An 8.0 megapixel camera with auto focus is a better offering than any phone on this league. It also includes 3x optical zoom and 4x digital zoom, plus a Xenon flash for clear, crisp pictures. What's more, with features like smile detection and webcam integration, this is really a camera phone to die for! Since their inception, rap jewelry is a huge passionate endeavor for youngsters. To add more grace in the ocean of rap jewels, the makers and artists are already fashioning chunky jewel pieces. The bling-bling look bestowed by big diamonds casted in hiphop jewelry renders pure extravagance to the wearer. As the height and width of diamonds increases, the jewel pieces be a little more expensive and present more uptown, classy and cool look.