Some natural phenomena have long been inspired by the inventors to the discovery not even the principle of the action, but only one view.Snail prompted to develop a pump of the same form that it sinks.It is possible that the heavenly bodies round became the prototype wheels.I found the use of even a dovetail.Its characteristic duality with angular cut-recognizable, it became the prototype for many technical and theoretical solutions.Some of these are discussed below.
How to "nevydergivaemy" bracket?
for wall mounting is often a need in the bracket, which are multi-directional forces.If you just put in a support wall, like a nail, there is a possibility that under load it gets out of position for her seat and rolled.To this did not happen often use a simple but ingenious solution.The bracket (for example, a segment of the plate or metal brackets) longitudinal incision, and get tips straightened in opposite directions.It remains only to knock a hole in the wall and imbedded in it by mortar construction, received for his duality called "dovetail".Fixing very firmly, pull out a difficult bracket.Especially this method is successfully applied to the walls, built of soft stone of limestone rocks, for which other methods (dowels, nails or Chopik) ineffective.
Construction
wooden architecture in Russia, and not only in recent years has spread ecological housing.Log houses, huts, traditional wooden houses meet the safety requirements, they are environmentally friendly, retain heat well and, finally, may be just very beautiful.The logs that make up the walls, in the corners can articulate in several ways, but most of the builders used the so-called "dovetail".Fixing is based on the slant groove, which does not give the components of the structure to leave their seats under the influence of external forces.An advantage of the method is the fact that when it is not required mounting hardware (staples or nails - "bone"), and hence the cost is reduced, and if necessary move the structure, parse it in the reverse order to the assembler, taking each in turn cant.Dovetail - method of erection of towers, "without a single nail."They are perfectly mastered the old Russian architects, to create a true architectural masterpieces.Some of them are represented in the open-air museum in Kizhi, which were transported from all over the country disassembled because the compound split and held virtually unrestricted number of cycles of assembly-disassembly.
furniture and accessories
trends in furniture design change cycles, like any other fashion.One thing remains unchanged: the quality is always highly valued."Aerobatics" highly qualified carpenter (this is also called a cabinet) considered this manner of operation, in which the articulation component parts of the table, chair or cabinet not hidden, as it were paraded.That, they say, firing the bureau drawer, no MDF and plastic, wood everywhere, and the accuracy of fit can be evaluated visibly.To the wall did not sprawling transportation and easy operation, often used the good old "dovetail".Fixing looks quite organically in the way of furniture, especially when contrasted shades of rock.The general principle is the same as that in the construction of a wooden frame, however, carried out with the help of special grooves Equipment structurally one piece, board.
Carpentry equipment
machine "dovetail" does not look like a bird's plumage.He represents a certain type of connection is a metal comb and a wooden base.But with the help of a skilled carpenter-furniture made with high precision incoming teeth and retaliatory cuts in a way that they connect the right angle and with minimal gaps.Manually this effect is difficult to achieve, if not impossible.At its core, this is a milling machine to work with them using special cutting heads (cutters), which form in the wood studs and corresponding grooves with a uniform frequency and high-quality class.
How did the shipbuilders?
requirements for stiffness, durability and reliability are always met by boats.Impacts of ocean and sea waves could shatter the strongest hull, especially if, as in the old days, is made of wood.Type connection details "dovetail" is often used, for obvious reasons, shipbuilders.It is worth mentioning that the industry has always been characterized by the most advanced technology.To cut the large protrusions and recesses in solid wood, there is even a special drink "dovetail", itself quite unlike the forked bird silhouette.In contrast, the cutting part of the tool straight and level.Name hacksaw Saw-received for its purpose, it is convenient to cut grooves and teeth with sloped edges.It is used in combination with other carpentry tools, among which the most important - a chisel and chisel.Saw this type is now used only in limited areas of production, such as in the construction of yachts and luxury homes in the style of "eco".In the real masters of carpentry tools that are usually there.
walls of the ancient Kremlin
Yes, yes, and the Moscow Kremlin, and many other medieval fortifications for many centuries carried on their walls the same "dovetail".Suffice it to consider carefully all of the teeth, crowning fence heart of Russia, to uglyadet duality of its specific shape.How unique is this form is difficult to say, similar decisions were taken in other European castles of the time.For what?It is possible that the architects have moved practical considerations, and cloven groove supports the gun, or guns, but for this purpose, and could miss the gaps between the teeth.And maybe that was the kind of architectural fashion.However, similar to Merloni (teeth) adorn the walls of the Kremlin in Tula, as well as the fortresses of many European cities (Pisa, Florence, Pistoia, Lucca, etc.).Who came up with "dovetail" decorate the fortifications the first unknown.Rather, in Russian fashion they brought invited architects from Italy (for example, in the construction of the Moscow Kremlin at the turn of the fifteenth and sixteenth centuries participated Pietro Solari).
Trailer
for transportation vehicles and other equipment, which can not be transported on their own (by faulty cars to tanks), used trailers.They are also called "dovetail".The trailer has a characteristic sliding or lifting structural elements, sometimes equipped with the guide, intended for the passage of the wheels of cars loaded.When transporting these "tails" are raised.Why the name stuck, is clear: retractable ramps or lifts are two parts, similar to the bifurcated tail swallow.
Application tripods
Indispensable for tripods way to rolling joint "dovetail".Connection is possible to meet various tripods optics of the various applications (from telescopes to cameras) and other devices in a design which is required to obtain high-precision progressive mobility.Among its advantages - minimizing backlash, ease of moving along a given line, the possibility of installation of the measuring scale, which can be equipped with carrying strap."Dovetail" represents in this case a kinematic pair of fixed guide having lateral recesses (angular in cross section) and moving it on the carriage, provided with a corresponding mating shape.It is of great importance and the possibility of unification of these racks.The distance between the side portions may be different, as long as the angle of the edges coincide.To pair multiple devices with a single base adapter is used "dovetail" in which design has the adjusting screw elements, which allow for changing the base supporting part.
Every hunter wants ...
Each shooter knows that the essence is aiming to combine the three points: the slit strips, the top of the front sight and the place where you want to go.Only in the case of a correct account of distance, wind and preemption (if the object of hunting is mobile) can hope to hit.Structure weapon sight and therefore, can differ.There are semi-circular slit, rectangular and those that carry the name of "dovetail".The sight of this type allows the gunslinger with certain skills quickly calculate the distance to the target.
and its method of attachment is often the same as optical devices on tripods, and as it is called, is easy to guess.In general, modern weapons without "dovetail" practically hard to imagine.
«tail" in other areas of knowledge
term was so imaginative and successful that they represent virtually any diverging (or converging shape).Mathematicians refer to "dovetail" graphic intersections of complex curved surfaces, mechanics - a special type of gear kinematic pair, physics - based ambiguous parameters.Even economists believe that the chart of exchange rates or investment expectations at times reminiscent of "dovetail".This happens in cases where data scatter is reduced or increased over time.In general, so-called all that diverges in two, or on the contrary, connects together the two parts.
