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land and navigation
Classically, beacons were fires lit at well-known locations on hills or high places, used either as lighthouses for navigation at sea, or for signalling over land that enemy troops were approaching, in order to alert defenses.
However, there are still minimum weather conditions that must be present in order for the aircraft to take off and land ; these will vary according to the kind of operation, the type of navigation aids available, the location and height of terrain and obstructions in the vicinity of the airport, equipment on the aircraft, and the qualifications of the crew.
LORAN ( LOng RAnge Navigation ) is a terrestrial radio navigation system which enables ships and aircraft to determine their position and speed from low frequency radio signals transmitted by fixed land based radio beacons, using a receiver unit.
The field of navigation includes four general categories: land navigation, marine navigation, aeronautic navigation, and space navigation.
Originally a training exercise in land navigation for military officers, orienteering has developed many variations.
When navigation became difficult, Cabot turned back, but only after obtaining some silver objects that the Indians said came from a land far to the west.
It was used as much for feng shui as for navigation on land.
Common uses for VHF are FM radio broadcasting, television broadcasting, land mobile stations ( emergency, business, private use and military ), long range data communication with radio modems, amateur radio, marine communications, air traffic control communications and air navigation systems ( e. g. VOR, DME & ILS ).
Visiting boats are not allowed to land, but navigation is allowed.
Celestial navigation is the use of angular measurements ( sights ) between celestial bodies and the visible horizon to locate one's position on the globe, on land as well as at sea.
For small cruising boat crews, celestial navigation is generally considered an essential skill when venturing beyond visual range of land.
As early as the 13th century local landowners paid subscriptions for work to be undertaken with the aim of facilitating navigation and land drainage.
The only objections were from Sir William Russell, who owned Strensham mill, and whose grievance was about land purchase, rather than the navigation works.
Following the land, a contour canal is entirely level and requires no locks or lifts making navigation quick and easy.
Phase two is completely in the field at Camp Pendleton for west coast recruits, with the first two weeks being spent on marksmanship training and qualification with the M16A4 service rifle, and the last week in the field learning skills such as fireteam formations, land navigation, and hikes.
Article III states " It is agreed, that it shall at all times be free to His Majesty's subjects, and to the citizens of the United States, and also to the Indians dwelling on either side of the said boundary line, freely to pass and repass, by land or inland navigation into the respective territories and countries of the two parties on the continent of America, ( the country within the limits of the Hudson Bay company only excepted ) ... and freely carry on trade and commerce with each other.
Such triangulation methods were used for accurate large-scale land surveying until the rise of global navigation satellite systems in the 1980s.
In land navigation, a bearing is the angle between a line connecting two points and a north-south line, or meridian.
In land navigation, a bearing is ordinarily calculated in a clockwise direction starting from a reference direction of 0 ° and increasing to 359. 9 degrees.
In a contemporary land navigation context, true, magnetic, and grid bearings are always measured in this way, with true north, magnetic north, or grid north being 0 ° in a 360-degree system.

land and azimuth
A dogleg is necessary if the desired launch azimuth, to reach a desired orbital inclination, would take the ground track over land ( or over a populated area, e. g. Russia usually does launch over land, but over unpopulated areas ), or if the rocket is trying to reach an orbital plane that does not reach the latitude of the launch site.

land and is
he knows that the land is hard and pitiless.
Moreover, the law of the land is not irrevocable ; ;
We consider a rural community as an assemblage of inhabited dwellings whose configuration is determined by the location and size of the arable land sites necessary for family subsistence.
We assume for this illustration that the size of the land plots is so great that the distance between dwellings is greater than the voice can carry and that most of the communication is between nearest neighbors only, as shown in Figure 2.
The deployment of a portion of these forces beyond our shores, on land and sea, is persuasive demonstration of our determination to stand shoulder-to-shoulder with our allies for collective security.
The only real problem is to devise a plan whereby the owners of the above-water land can develop their property without the public losing its underwater land and the right to its development for public use and enjoyment.
And then there is St. Louis county, where the Democratic leadership has shown little appreciation of the need for sound zoning, of the important relationship between proper land use and economic growth.
They point out simply that `` it is the law of the land ''.
This land is in various stages of development in several locations throughout the town.
The rural land use study is being carried out under contract by the University of Rhode Island and identifies all agricultural land uses in the state by type of use.
Within the units in the National Forest System the pattern of land ownership is quite irregular.
One consequence is the occurrence of occasional conflicts because private owners of some inholdings object to public programs of use on neighboring National Forest or other Federal land, or because such ownerships are developed for uses that are not compatible with use for the public of neighboring National Forest land.
The long-range objective is to bring about consolidation of ownership through use of land exchange authority and through purchase on a moderate scale of inholdings which comprise key tracts for recognized National Forest programs such as recreation development, or which are a source of damage to lands in National Forests and National Grasslands.
Ignorance of the law is no better excuse on the water than it is on land ; ;
Minnesota, fabled land of waters, is in itself, ideal vacationland, having within its borders 10,000 lakes!!
Look at the physical features of the land to determine how desirable it is for use, what can be done to correct the faults, and what it will cost to make the area meet your needs in comparison to other sites.
And due to modern resource-use and game management practices, there is still game to shoot, even with the ever-expanding encroachment on land and water.
As an isolated policy, land reform is likely to be politically disruptive ; ;
It is hard to believe that this mass of intertwined concrete constitutes what the law calls `` the highest and best use '' of centrally located urban land.

land and usually
When surplus land is not expensive to buy or to keep up, it is usually better to buy it than to buy so small an acreage that the development of adjoining properties might impair the residential value of the farm.
* a Morgen (" morning ") of land is usually set at of a Tagwerk (" day work ") of ploughing with an ox
Unlike the typical hijackings of land vehicles or ships, skyjacking is not usually committed for robbery or theft.
Since there is no heir to inherit Elimelech's land, levirate custom required a close relative ( usually the dead man's brother ) to marry the widow of the deceased in order to continue his family line ( Deuteronomy 25: 5 – 10 ).
More than 40 million farmers have been displaced from their land, usually for economic development, contributing to 87, 000 demonstrations and riots across China in 2005.
The reason for this is that although the Scandinavian peninsula is attached to Continental Europe by Karelia etc., it is usually reached by sea, not by land ( which would require travelling north as far as Tornio at the 66th parallel north ).
Even though slaves outnumbered the Portuguese colonists, the lack of weapons, the colonial law, the disagreement between slaves coming from different African cultures and their complete lack of knowledge about the land and its surroundings would usually discourage the idea of a rebellion.
This includes blankets, which is also a local necessity for the desert is not just a land of dust and heat, but winter nights here are very cold, usually below freezing points.
In these stories a supreme being usually sends an animal into the primal waters to find bits of sand or mud with which to build habitable land.
A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption.
The land was reclaimed by nature, but the secondary forests usually lacked the original biodiversity.
** coathanger – slang for high contact to the head, usually by a stiff arm, which causes a player to land flat on their back.
Feudalism usually emerged as a result of the decentralization of an empire: especially in the Japanese and Carolingian ( European ) empires which both lacked the bureaucratic infrastructure necessary to support cavalry without the ability to allocate land to these mounted troops.
The key distinction between gardening and farming is essentially one of scale ; gardening can be a hobby or an income supplement, but farming is generally understood as a full-time or commercial activity, usually involving more land and quite different practices.
The cheirosiphōnes especially were prescribed for use at land and in sieges, both against siege machines and against defenders on the walls, by several 10th-century military authors, and their use is depicted in the Poliorcetica of Hero of Byzantium. The Byzantine dromons usually had a siphōn installed on their prow under the forecastle, but additional devices could also on occasion be placed elsewhere on the ship.
Sometimes, particularly in the lower Tigris and Euphrates valleys, soil salinity restricts the area of arable land and limits the size of the community dependent on it, and it also usually results in large unsettled and uncultivated stretches between the villages.
There was a long history of Native American land being purchased, usually by treaty and sometimes under coercion.
The small parcel of land made a tall tower necessary, and Pei had usually shied away from such projects ; in Hong Kong especially, the skyscrapers lacked any real architectural character.
Locals refer to Chios town as " Chora " (" Χώρα " literally means land or country, but usually refers to the capital or a settlement at the highest point of a Greek island ).
Against this, it has been argued that all known species of pinnipeds are usually visible on land during daylight hours to sunbathe, something that Nessie is not known to do.
The nearest land is usually said to be Kaffeklubben Island, off the northern coast of Greenland about away, though some perhaps non-permanent gravel banks lie slightly closer.
However, they are usually not street legal and should be ridden on private land, such as car parks, gardens or on race tracks.
The plough was usually worked clockwise around each land, ploughing the long sides and being dragged across the short sides without ploughing.
For ploughs with two or more furrows more than two horses are needed and, usually, one or more horses have to walk on the loose ploughed sod — and that makes hard going for them, and the horse treads the newly ploughed land down.
Real property rights are usually enforceable for a much longer period of time and in most jurisdictions real estate and immovables are registered in government-sanctioned land registers.

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