self defence techniques
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- self defence techniquesGlasses, also known as eyeglasses or spectacles, are devices consisting of glass or hard plastic lenses mounted in a frame that holds them in front of a person's eyes, typically using a bridge over the nose and arms which rest over the ears. Glasses are typically used for vision correction, such as with reading glasses and glasses used for nearsightedness. Safety glasses provide eye protection against flying debris for construction workers or lab technicians; these glasses may have protection for the sides of the eyes as well as in the lenses. Some types of safety glasses are used to protect against visible and near-visible light or radiation. Glasses are worn for eye protection in some sports, such as squash. Glasses wearers may use a strap to prevent the glasses from falling off during movement or sports. Wearers of glasses that are used only part of the time may have the glasses attached to a cord that goes around their neck, to prevent the loss of the glasses. The UK glass industry is pursuing an active programme on energy efficiency and decarbonisation. But building the business case to secure funds remains a barrier. Capital costs can be very high and paybacks periods are often in excess of two years; traditional loans are usually unattractive for this work. 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. “We are a trade specialist so all retail enquiries and enquiries from smaller independent installers are handled by our customers, which means they are sharing directly in the success of our campaign.” Ms Stephens continues: “The new extension has provided a fantastic and really flexible space that thanks to the new PURe® patio doors and windows, can be enjoyed whatever the weather. It’s great to be able to open up the living space and enjoy the close access we now have to the garden but even when the blustery weather that we are so familiar with here in the Yorkshire Dales takes hold, the glazing has provided us with a peaceful and cosy retreat. It’s the perfect space for both work and relaxation and I couldn’t be happier!” Offering exceptional thermal efficiency, build quality, and desirable minimalist aesthetics, Üni_Slide can achieve frame sightlines as slim as 20mm, and a slim central interlock, while being able to support sliding panels of up to 3m high and 2.2m wide. The product can be assembled in a limitless run of units, with each panel capable of holding up to 320kg of glass.
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