Spherical Earth
The concept of a spherical Earth dates back to ancient Greek philosophy from around the 6th century BC, but remained a matter of philosophical speculation until the 3rd century BC, when Hell...
Spherical Earth - Wikipedia
Was Magellan The First Person To Circumnavigate The Globe?
The Portuguese explorer Ferdinand Magellan is often credited as being the first person to have circumnavigated the globe, but the reality of his journey is a bit more complicated.
Age of Discovery
Artwork and map animation help illustrate the exciting voyages of Prince Henry the Navigator, Díaz, Columbus, Vasco da Gama, Magellan, Ponce de León, Balboa,...
Age of Discovery
The Age of Discovery is a period of European global exploration that started in the early 15th century with the first Portuguese discoveries in the Atlantic archipelagos and Africa, as well as the dis...
Age of Discovery - Wikipedia
Geodesy
Geodesy (/dʒiːˈɒdɨsi/), — also known as geodetics or geodetics engineering — a branch of applied mathematics and earth sciences, is the scientific discipline that deals with the measurement and repre...
Geodesy - Wikipedia
Was Magellan The First Person To Circumnavigate The Globe?
The Portuguese explorer Ferdinand Magellan is often credited as being the first person to have circumnavigated the globe, but the reality of his journey is a bit more complicated.
Mimee
Mimee is a program which can convert geographical coordinates between various datums and formats.
Supported coordinates formats are :232 datums and 36 grids are provided in Mimee.
Mimee - Wikipedia
Electronic leash
An electronic leash is the pairing (“leashing”) of one or more wireless devices to a host device that allows the user to find misplaced or out-of-sight objects by activating the host device such that ...
List of spatial analysis software
Spatial analysis software is software written to enable and facilitate spatial analysis. Currently, there are several packages, both free software and proprietary software, which cover most of the spa...
Terralink International
Terralink International is a New Zealand owned and operated provider of Geographic information systems (GIS) and mapping solutions.
Terralink International specialises in delivering mapping, prope...
Terralink International - Wikipedia
Instantatlas
InstantAtlas is a data visualization and reporting tool used for communicating location-based statistical data held in spreadsheets and desktop Geographic Information System software. InstantAtlas is...
Henry Hudson
Henry Hudson (born c. 1560s/70s) was an English sea explorer and navigator in the early 17th century.Hudson made two attempts on behalf of English merchants to find a prospective Northwest Passage to ...
Henry Hudson - Wikipedia
Armin Grün
Prof. em. Dr. Armin Gruen (born April 27, 1944 in Bad Berneck, Germany) was since 1984 Professor and Head of the Chair of Photogrammetry at the Institute of Geodesy and Photogrammetry (IGP), Federal I...
Gal (unit)
The gal, sometimes called galileo, (symbol Gal) is a unit of acceleration used extensively in the science of gravimetry. The gal is defined as 1 centimeter per second squared (1 cm/s). The millig...
Gal (unit) - Wikipedia
Digital elevation model
A digital elevation model (DEM) is a digital model or 3D representation of a terrain's surface — commonly for a planet (including Earth), moon, or asteroid — created from terrain elevation data.
T...
Digital elevation model - Wikipedia
Suitability analysis
Suitability Analysis is the process and procedures used to establish the suitability of a system - that is, the ability of a system to meet the needs of a stakeholder or other user.
Suitability an...
Digital Earth
Digital Earth is the name given to a concept by former US vice president Al Gore in 1998, describing a virtual representation of the Earth that is georeferenced and connected to the world’s digital kn...
Alonso Sánchez
Alonso Sánchez (also known as Alonso Sánchez de Huelva) was a fifteenth-century mariner and merchant born in Huelva, Spain, on Andalusia's Atlantic coast. Legend has it that he was a mariner who reach...
Alonso Sánchez - Wikipedia
UNSDI
The United Nations Spatial Data Infrastructure (UNSDI) is an institutional and technical mechanism for establishing system coherence for the exchange and applications of geospatial data and informatio...
Geographical pole
A geographical pole, also known as a geographic pole, is either of the two points on a planet, moon or other relatively large rotating body where the body's axis of rotation meets its surface. As with...
Vincenty's formulae
Vincenty's formulae are two related iterative methods used in geodesy to calculate the distance between two points on the surface of a spheroid, developed by Thaddeus Vincenty (1975a) They are based o...
Gravimetry
Gravimetry is the measurement of the strength of a gravitational field. Gravimetry may be used when either the magnitude of gravitational field or the properties of matter responsible for its creatio...
Gravimetry - Wikipedia
SOSI
SOSI is a much used geospatial vector data format for predominantly used for exchange of geographical information in Norway.SOSI is short for Samordnet Opplegg for Stedfestet Informasjon (literally "C...
Globalization
Globalization (or globalisation) is the process of international integration arising from the interchange of world views, products, ideas and other aspects of culture. Advances in transportation and ...
Trading post
A trading post was a place or establishment where the trading of goods took place; the term is generally used, in modern parlance, in reference to such establishments in historic Northern America, alt...
Trading post - Wikipedia
Jacques N. Bellin
Jacques Nicolas Bellin (1703 – 21 March 1772) was a French hydrographer, geographer, and member of the French intellectual group called the philosophes.Bellin was born in Paris. He was hydrographer of...
Jacques N. Bellin - Wikipedia
Luis de Santangel
Luis de Santángel (died 1498) was a baptized Jew and finance minister to Ferdinand II who made the case to Isabella I in favor of Christopher Columbus' voyage in 1492.
In 1486, Ferdinand and Isabe...
Luis de Santangel - Wikipedia
GIS in environmental contamination
GIS in environmental contamination is the use of GIS software in mapping out the contaminants in soil and water using the spatial interpolation tools from GIS. Soil and water contamination by metals ...
GIS in environmental contamination - Wikipedia
Padrão Real
The Padrão Real ([pɐˈðɾɐ̃w̃ ʁiˈaɫ], Royal Standard) was a master Portuguese nautical chart produced and maintained by the Portuguese government organization, the Armazéns da Índia, where the new disco...