GPS is known as the acronym “Global Positioning System” which in abbreviationfinder.org means “global positioning system”. The GPS is a navigation system based on 24 satellites (21 operational and 3 backup), in orbit on the planet earth that sends information about the position of a person or object at any time and weather conditions.
The GPS was created, installed and used in 1973 by the Department of Defense of the United States, at the beginning it was of unique and exclusive use for military operations but from the 80s the United States government allowed society civil enjoy this navigation system. GPS can be used on ships, trucks, airplanes, cars, among others. On the other hand, the GPS was designed with the objective that the user obtains knowledge about his position, information of the direction to which he is going, speed, approximate time of arrival, among other data. Some offer voice guidance, to instruct the driver on the movements he must perform to follow the correct direction, alternative routes, speed limitations, among others.
Now, to determine the position of an object, person or address, the GPS calculates the value of longitude, in reference to the Greenwich Meridian, the value of latitude and, finally, the value of altitude. To locate a point, at least four satellites are essential, and the GPS receiver receives the signals and time of each of them, and through the triangulation calculates the position where it is located. There are currently two types of satellite navigation systems: American GPS and the GLONASS controlled by the Russian Government. Also, the European Union tries to launch a satellite navigation system called Galileo.
A compass is an orientation instrument, which allows the traveler to be spatially located relative to the magnetic north by means of a magnetized needle. It is a fundamental instrument for sailors, hikers, pilots, hunters, explorers, etc. The first compass arose in China. It was used primarily as a navigation instrument that allowed overseas travelers to orient themselves in space and define the path to follow, but it was not infallible. Over time, other compass systems were developed.
Parts of a compass
There are different types of compasses. All of them share basically three fundamental elements: a base with a ruler and a reference arrow; a limbo or graduated disc that rotates on its own axis and a magnetized needle pointing north.
Today there are many varieties of compass available, as the systems have been perfected with the advancement of technology. Within the basic range of compasses, the following can be mentioned:
The magnetic compass, the oldest of all, allows orientation through the magnetized needle system that points towards the magnetic north pole of the earth, that is, from the identification of the Earth’s magnetic field.
The gyroscopic compass or gyro always looks to the geographical north and not to the magnetic one, since it uses a set of rings and a disk aligned according to a rotation axis, the inner and outer axis, which are perpendicular to each other. Other types of compasses can be the limbo compass, lentistic compass, cartographic compass, electronic compass and mobile phone compass. The latter depends on the availability of the network at the site of the scan, so it may be unsafe.
- Newcastle, Wyoming - Newcastle, Wyoming is located in Weston County in the northeast corner of the state. The city sits at an elevation of 4,670 feet and is surrounded by rolling hills and prairie grasslands. To the east lies the Black Hills National Forest, while to the west lie the Bighorn Mountains. Newcastle itself has a population of […]
- Bradley County, Tennessee - Bradley County, Tennessee is located in the southeastern part of the state and encompasses an area of approximately 290 square miles. The county is bordered by Cleveland, Hamilton, Polk, McMinn and Meigs Counties. The county seat is located in Cleveland and the county has a population of approximately 105,000 people. The terrain of Bradley County […]
- Archer County, Texas - Archer County, Texas is located in the north-central part of the state and is part of the Wichita Falls Metropolitan Area. The county covers an area of 938 square miles and has a population of 8,845 people. The county seat is Archer City. Archer County is bordered by Clay County to the east, Montague County […]
- Amir Kabir University of Technology (AKU) - According to abbreviationfinder, Amir Kabir University is commonly known as AKU. Amir Kabir University of Technology (AKU), formerly known as Tehran Polytechnic, is a public research university located in Tehran, Iran. Founded in 1958, it is one of the oldest universities in Iran and the most prestigious engineering school in the country. The university has grown […]
- American International College (AIC) - According to abbreviationfinder, American International College is commonly known as AIC. American International College (AIC) was founded in 1885 by a group of civic-minded citizens who saw the need for a college to educate the young people of Springfield, Massachusetts. Initially known as the International YMCA College, it was the first YMCA college in the world […]
- Carbon County, Utah - Carbon County, Utah is located in the southeastern corner of the state, bordered by Duchesne County to the north, Emery County to the east, San Juan County to the south and Grand County to the west. The county encompasses an area of 4,834 square miles with a population of approximately 12,497 people as of 2020. […]
- Caledonia County, Vermont - Caledonia County is located in the northeastern corner of Vermont and is bordered by New Hampshire to the east, Quebec to the north, and Vermont’s other counties to the south and west. The county covers an area of 864 square miles and is home to a population of nearly 31,000 people. The geography of Caledonia […]
- American College of Psychoanalysts (ACP) - According to abbreviationfinder, American College of Psychoanalysts is commonly known as ACP. The American College of Psychoanalysts (ACP) was established in 1965 by a group of psychoanalytic pioneers who wanted to ensure the highest professional standards for the practice of psychoanalysis. The ACP was created to promote and maintain rigorous standards in the field, to […]
- Benton City, Washington Population, Schools and Places of Interest - Benton City, Washington is a small town located on the eastern edge of the state. It borders a number of other cities and towns, offering visitors and locals alike plenty to explore and experience. To the north lies Richland, a city known for its vibrant music scene and diverse cultural offerings. The nearby Columbia River […]
- Anawalt, West Virginia Population, Schools and Places of Interest - Anawalt, West Virginia is a small town located in McDowell County and is surrounded by several neighboring cities and towns. To the north of Anawalt lies the city of Welch which is the county seat of McDowell County. Welch has a population of approximately 2,300 people and offers a variety of attractions including a golf […]