Trade wind
The trade winds (sometimes called trades) are the prevailing pattern of easterly surface winds found in the tropics, within the lower portion of the Earth's atmosphere, in the lower section of the tr...
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.
Energy Harnessed From Humidity Can Power Small Devices
Researchers have built devices that harness changes in atmospheric humidity to generate small amounts of electricity, lift tiny weights, and even power a toy car. In the grand scheme of things, that c...
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 Sail
The Age of Sail was a period roughly corresponding to the early modern period in which international trade and naval warfare were dominated by sailing ships, lasting from the 16th to the mid-19th cent...
Air mass
In meteorology, an air mass is a volume of air defined by its temperature and water vapor content. Air masses cover many hundreds or thousands of square miles, and adopt the characteristics of the s...
Hadley cell
The Hadley cell, named after George Hadley, is a tropical atmospheric circulation that is defined by the average over longitude, which features rising motion near the equator, poleward flow 10–15 kilo...
Humidity
Humidity is the amount of water vapor in the air. Water vapor is the gaseous state of water and is invisible. Humidity indicates the likelihood of precipitation, dew, or fog. Higher humidity reduces...
Monsoon
Monsoon ( /mɒnˈsuːn/; /mɑːnˈsuːn/) is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmosph...
Monsoon trough
The monsoon trough is a portion of the Intertropical Convergence Zone as depicted by a line on a weather map showing the locations of minimum sea level pressure, and as such, is a convergence zone be...
Near-equatorial trough
Since 1954, studies concluded that the near-equatorial trough was associated with a maximum in oceanic sea surface temperature. It is sometimes used as a synonym for the terms near equatorial tradewin...
Prevailing winds
Global surface wind vector flow lines colored by wind speed from June 1, 2011 to October 31, 2011.Prevailing winds are winds that blow predominantly from a single general direction over a particular...
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.
Erosion
In geomorphology and geology, erosion is the action of exogenic processes (such as water flow or wind) which remove soil and rock from one location on the Earth's crust, then transport it to another l...
Energy Harnessed From Humidity Can Power Small Devices
Researchers have built devices that harness changes in atmospheric humidity to generate small amounts of electricity, lift tiny weights, and even power a toy car. In the grand scheme of things, that c...
Portuguese colonization of the Americas
Portugal was the leading country in the European exploration of the world in the 15th century. The Treaty of Tordesillas divided the Earth, outside Europe, in 1494 into Spanish (Castilian) and Portugu...
Christopher de Haro
Christopher de Haro (in Portuguese, Cristóvão de Haro) was a Lisbon-based merchant of Flemish origin. As a financier and representative of the Fuggers he provided the financial backing to Ferdinand Ma...
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 ...
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...
Bartolomeo Marchionni
Bartolomeo Marchionni (late 15th to early 16th century) was a Florentine merchant established in Lisbon during the Age of Discovery. Bartolomeo Marchionni arrived circa 1468 at Lisbon as an agent to t...
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...
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...
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...
Martín de Ayamonte
Martín de Ayamonte, also called by his Portuguese name Martinho de Aiamonte, was an apprentice seaman in the Armada de Molucca under the command of the Portuguese mariner Ferdinand Magellan.Ayamonte w...
Wind rose
A wind rose is a graphic tool used by meteorologists to give a succinct view of how wind speed and direction are typically distributed at a particular location. Historically, wind roses were predecess...
Portuguese India Armadas
The Portuguese India armadas (armadas da Índia) were the fleets of ships, organized by the Portuguese crown and dispatched on an annual basis from Portugal to India, principally Goa. These armadas und...
Dimasaua
Dimasaua, also spelled Dimasawa and Dimasava, was the invented name created by 17th-century Spanish missionary Fr. Francisco Colín, S.J., pointing to a tiny isle in southern Leyte whose chief, accordi...
History of colonialism
The historical phenomenon of colonisation is one that stretches around the globe and across time, including such disparate peoples as the Hittites, the Incas and the British. Modern state global colo...
Factory (trading post)
A factory (from Latin facere, meaning "to do"; Portuguese feitoria, Dutch factorij, French factorerie, German Faktorei) was an establishment for factors or merchants carrying on business in foreign la...