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Heliography is the use of the sun's light to transmit messa
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Heliography is the use of the sun's light to transmit messages dating back to ancient Greek & Roman times. This mirror is made of ¼" laminated glass, and instructions are printed on the back. The sighting hole features a special reflectorized screen that directs a beam of sunlight onto the target. Reflect sunlight from mirror onto a nearby surface (raft, hand etc.) Slowly bring mirror up to eye level and look through sighting hole. You will see a bright spot: this is the aim indicator. Hold mirror close to the eye and slowly turn and manipulate it so that the bright light spot is on the target. Even if no potential rescuers are in sight, continue sweeping the horizon or other possible rescuer locations, as mirror flashes can be seen for distances up to 20 miles.
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Heliography is the use of the sun's light to transmit messa
... Read more
Heliography is the use of the sun's light to transmit messages dating back to ancient Greek & Roman times. This mirror is made of ¼" laminated glass, and instructions are printed on the back. The sighting hole features a special reflectorized screen that directs a beam of sunlight onto the target. Reflect sunlight from mirror onto a nearby surface (raft, hand etc.) Slowly bring mirror up to eye level and look through sighting hole. You will see a bright spot: this is the aim indicator. Hold mirror close to the eye and slowly turn and manipulate it so that the bright light spot is on the target. Even if no potential rescuers are in sight, continue sweeping the horizon or other possible rescuer locations, as mirror flashes can be seen for distances up to 20 miles.
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from $11
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from $50
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from $1,300
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Massad Ayoob is an established authority and writer on fire
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Massad Ayoob is an established authority and writer on firearms and knives. For more than four decades he has taught defensive knife and firearm programs and appears frequently as an expert witness in trials involving edged weapons. Along the way he developed an all-purpose tactical folder suited to his preferences that is the Spyderco C60 Massad Ayoob CLIPIT. Most unusual about his folder is its radical angle of the handle to the blade. Ayoob explains: “With a typical knife thrusting lifts the blade’s point above the line of the forearm like a boat prow going through water. The faster harder or more resistance encountered the higher the prow rises deviating the blade off course from its original target which can mitigate the depth of the cut and can cause the blade to literally skid’ when a resistant surface is hit.” The C60’s radical angle brings the blade into line with the long bones of the forearm channeling the body’s force directly behind the line of the cut resulting in minimized blade deviation and maximized accuracy. Because of the blade to handle angle the Ayoob has a short opening arc translating into fast opening.The Spyderco Massad Ayoob features also include a PlainEdge VG-10 stainless steel blade with a deep belly for maximized slicing potential. It has a notably strong lock-back with a David Boye style release lever that helps ensure safe lock-up. The black G-10 handle has an ergonomic thumb rest at the rear of the blade and a steel pocket clip for right/left hand tip-down carryThe Spyderco Ayoob is a limited number Sprint Run. length overall: 8 5/8 in. (219 mm) blade length: 3 5/8 in. (92 mm) blade steel: VG-10length closed: 5 1/32 in. (128 mm) cutting edge: 3 1/4 in. (84 mm) weight: 4.9 oz. (140 g)hole diameter: 15/32 in. (12 mm) blade thickness: 1/8 in. (3 mm) handle material: G-10
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Wannabe recreational paddlers now have a new tool to help
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Wannabe recreational paddlers now have a new tool to help them understand all about kayaking. This energizing instructional DVD starts a new or interested paddler at the beginning, by providing a basic overview of types of boats and gear, strokes, maneuvers, and safety. All are presented in a manner that demystifies and enlightens. The target audience is recreational paddlers seeking a short paddle around the local coast, a day on the lake fishing, taking the family, or camping with friends. From kayak day trips to inland tours, easy whitewater riffles to ocean surfing, AAK delivers a broad understanding of the entire spectrum of kayaking. A special section explains some of the best tricks for kayak fishing.
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from $215
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