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.

Compass Types

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:

Magnetic compass

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.

Gyroscopic compass

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.

  • Ceelen-Gellerstedt Syndrome What is the Definition of Ceelen-Gellerstedt Syndrome? - The Ceelen-Gellerstedt syndrome is a lung disease that can probably be assigned to the autoimmune diseases and causes episodic or chronic bleeding in the lung tissue. Fibrosis often develops from the bleeding. There are currently no causal treatments available for this rare disease. What is Ceelen-Gellerstedt Syndrome? Ceelen-Gellerstedt syndrome is a rare lung disease that […]
  • Bed-wetting in Children What is the Definition of Bed-wetting in Children? - My child is bed wetter – I come because my child has been making bed for years! – The child does not and does not want to get clean – I have already done so much, but my child willfully, out of malice, wet the bed every night, sometimes even during the day in its […]
  • Atheroma What is the Definition of Atheroma? - Atheromas belong to the group of benign (benign) soft tissue tumors that arise from blocked ducts in the sebum glands. Atheromas are not dangerous, but in many cases they should be surgically removed to prevent infection. What is an atheroma? According to DigoPaul, atheroma (also known as groats or wheat groats) is a slowly growing, […]
  • World Health Organization WHO What is the Definition of WHO? - Standing for World Health Organization on AbbreviationFinder, WHO is the international body of the United Nations system responsible for health. Made up of a group of experts, they develop health guidelines and standards, and help countries address public health issues, support and promote health research. Through WHO, governments can jointly tackle global health problems and […]
  • PDF What is the Definition of PDF? - According to AbbreviationFinder, PDF (English acronym p ortable d ocument f Ormat, Portable Document Format) is a document storage format developed by Adobe Systems. This format is a composite type (vector image, bitmap and text). Generalities It is specially designed for documents that can be printed, since it specifies all the necessary information for the final presentation of the document, determining all […]
  • Herniated Intervertebral Disc What is the Definition of Herniated Intervertebral Disc? - Abbreviated as HIVD by AbbreviationFinder, a herniated intervertebral disc is a degenerative and wear-related disease of the intervertebral discs and the lumbar or cervical spine. This mainly leads to deformations and bruises on the individual vertebral bodies. This process can cause severe pain and radiate to the extremities (arms, legs, feet). What is a herniated […]
  • Achilles tendinitis What is the Definition of Achilles Tendinitis? - The human body has a part that is repeatedly exposed to great stress – the feet. In this way, Achilles tendonitis has been given special importance in recent years. What is Achilles tendinitis? Typical problems with the Achilles tendon. The Achilles tendon connects the terminal tendons of the soleus and gastrocnemius muscles with the calcaneal […]
  • Akrodermatitis chronica atrophicans Herxheimer What is the Definition of Akrodermatitis Chronica Atrophicans Herxheimer? - When acrodermatitis chronica atrophicans is a skin disorder. The disease is chronic in the majority of cases and, due to its typical symptoms, fulfills the dermatological model of the final stage of so-called Lyme borreliosis. Akrodermatitis chronica atrophicans Herxheimer is counted among the atrophic skin diseases. What is akrodermatitis chronica atrophicans Herxheimer? The first symptoms […]
  • What is the Definition of ADHD What is the Definition of ADHD? - Strong attention deficit disorders are referred to as ADHD or ADD . These terms are concretely understood as the so-called attention deficit disorder or attention deficit hyperactivity disorder. As a rule, boys in particular suffer from this disease. The exact causes are not yet known. One assumes, however, that the signal transmission in the brain […]
  • What is the Definition of Emscripting What is the Definition of Emscripting? - Emscripten is the name of a compiler that translates most of the LLVM language into JavaScript. This enables the code of various programming languages ​​to be executed in current browsers. Emscripten’s job is to compile different languages ​​into each other . The main challenge here is to translate a machine-level source language (LLVM) into another […]