Mayaki

23/02/2023

At the same time, it turned out that it became technologically more advantageous to make these elements not reflective, but working through the light, that is, to use a composite lens proposed by Fresnel to concentrate light (see Fresnel lens). For the simplest modulation of light intensity, it turned out to be expedient to use an assembly of lenses rotating around a source that emits light in all directions and is constant in intensity.

23/02/2023

Since the manufacture of a single-piece optical element of large dimensions is associated with an increase in its weight, it is assembled from individual elements.

22/02/2023

Extremely often modulation is used according to a given temporal law of light intensity in order to distinguish the light signals of a beacon from the light of constant sources (both coastal and navigational lights of ships) and to distinguish them from the signals of other lighthouses.

22/02/2023

To ensure their optical visibility in adverse observation conditions, beacons are equipped with a strong light source and, as a rule, are equipped with optical devices that serve to concentrate light in given directions and increase the intensity of the light used by the radiation source.

21/02/2023

Green Roses are real and they are very special, and very old

21/02/2023

They are used not only in sea, but also in river navigation. Leading lights equipped the path on the Elbe from Hamburg to the mouth of the river.

21/02/2023

Such a designation system was introduced in Europe in 1837 and was called "leading lights" (Eng. Leading Lights).

20/02/2023

20/02/2023

Varenna, Lake Como, Italy

📷 .rivolta

19/02/2023

It can be stationary, floating. According to the principle of operation, light and radio engineering are distinguished .

19/02/2023

A lighthouse is a navigational landmark that is used to identify the coast, determine the location of the vessel.

17/02/2023

In this case, 2 beacons of different heights are used. The far beacon is always higher than the near one, so if the ship is on the right course, then both beacons that are on the course line can be observed from it simultaneously, visually one above the other.

17/02/2023

Identification (single), serving to designate a certain point on the earth or water surface, which, in particular, serve as signs at the entrance to the port or in the place where ships change course, as well as to indicate dangerous areas
Leading (working necessarily in pairs) - serve to indicate a certain line on the map and are used to indicate the place of the change in the course of the vessel, for example, to enter a harbor or port

16/02/2023

A lighthouse is a means of navigational equipment on the coast of large reservoirs in the form of a capital structure, often of a tower type, designed to compare the picture observed by the navigator with a certain place on a geographical map, having precisely established coordinates, which helps to clarify the place ...

16/02/2023

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