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Isobath
A bathymetric chart is a type of isarithmic map that depicts the submerged bathymetry and physiographic features of ocean and sea bottoms. Their primary purpose is to provide detailed depth contours of ocean topography as well as provide the size, shape and distribution of underwater features. Topographic maps display elevation above ground (topography) and are complementary to bathymetric charts. Bathymetric charts showcase depth using a series of lines and points at equal intervals, called depth contours or isobaths (a type of contour line). A closed shape with increasingly smaller shapes inside of it can indicate an ocean trench or a seamount, or underwater mountain, depending on whether the depths increase or decrease going inward. Bathymetric surveys and charts are associated with the science of oceanography, particularly marine geology, and underwater engineering or other specialized purposes. Bathymetric data used to produce charts can also be converted to bathymet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isarithmic Map
A contour line (also isoline, isopleth, isoquant or isarithm) of a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. It is a plane section of the three-dimensional graph of the function f(x,y) parallel to the (x,y)-plane. More generally, a contour line for a function of two variables is a curve connecting points where the function has the same particular value. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes. The contour interval of a contour map is the difference in elevation between successive contour lines. The gradient of the function is always perpendicular to the contour lines. When the lines are close together the magnitude of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contour Line
A contour line (also isoline, isopleth, isoquant or isarithm) of a Function of several real variables, function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value. It is a cross-section (geometry)#Definition, plane section of the graph of a function of two variables, three-dimensional graph of the function f(x,y) parallel to the (x,y)-plane. More generally, a contour line for a function of two variables is a curve connecting points where the function has the same particular value. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. A contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes. The contour interval of a contour map is the difference in elevation between successive contour lines. The gradient of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathymetry
Bathymetry (; ) is the study of underwater depth of ocean floors ('' seabed topography''), river floors, or lake floors. In other words, bathymetry is the underwater equivalent to hypsometry or topography. The first recorded evidence of water depth measurements are from Ancient Egypt over 3000 years ago. Bathymetry has various uses including the production of bathymetric charts to guide vessels and identify underwater hazards, the study of marine life near the floor of water bodies, coastline analysis and ocean dynamics, including predicting currents and tides. Bathymetric charts (not to be confused with '' hydrographic charts''), are typically produced to support safety of surface or sub-surface navigation, and usually show seafloor relief or terrain as contour lines (called '' depth contours'' or '' isobaths'') and selected depths ('' soundings''), and typically also provide surface navigational information. Bathymetric maps (a more general term where navigational safet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead
Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable nuclide, stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its Amphoterism, amphoteric nature; lead and lead oxides react with acids and base (chemistry), bases, and it tends to form covalent bonds. Lead compounds, Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Testament
The New Testament (NT) is the second division of the Christian biblical canon. It discusses the teachings and person of Jesus in Christianity, Jesus, as well as events relating to Christianity in the 1st century, first-century Christianity. The New Testament's background, the first division of the Christian Bible, is called the Old Testament, which is based primarily upon the Hebrew Bible; together they are regarded as Sacred Scripture by Christians. The New Testament is a collection of 27 Christianity, Christian texts written in Koine Greek by various authors, forming the second major division of the Christian Bible. It includes four Gospel, gospels, the Acts of the Apostles, epistles attributed to Paul the Apostle, Paul and other authors, and the Book of Revelation. The Development of the New Testament canon, New Testament canon developed gradually over the first few centuries of Christianity through a complex process of debate, rejection of Heresy, heretical texts, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul The Apostle
Paul, also named Saul of Tarsus, commonly known as Paul the Apostle and Saint Paul, was a Apostles in the New Testament, Christian apostle ( AD) who spread the Ministry of Jesus, teachings of Jesus in the Christianity in the 1st century, first-century world. For his contributions towards the New Testament, he is generally regarded as one of the most important figures of the Apostolic Age, and he also founded Early centers of Christianity, several Christian communities in Asia Minor and Europe from the mid-40s to the mid-50s AD. The main source of information on Paul's life and works is the Acts of the Apostles in the New Testament. Approximately half of its content documents his travels, preaching and miracles. Paul was not one of the Twelve Apostles, and did not know Jesus during his lifetime. According to the Acts, Paul lived as a Pharisees, Pharisee and participated in the Persecution of Christians in the Roman Empire, persecution of early Disciple (Christianity), disciples ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malta
Malta, officially the Republic of Malta, is an island country in Southern Europe located in the Mediterranean Sea, between Sicily and North Africa. It consists of an archipelago south of Italy, east of Tunisia, and north of Libya. The two official languages are Maltese language, Maltese and English language, English. The country's capital is Valletta, which is the smallest capital city in the EU by both area and population. It was also the first World Heritage Site, World Heritage City in Europe to become a European Capital of Culture in 2018. With a population of about 542,000 over an area of , Malta is the world's List of countries and dependencies by area, tenth-smallest country by area and the List of countries and dependencies by population density, ninth-most densely populated. Various sources consider the country to consist of a single urban region, for which it is often described as a city-state. Malta has been inhabited since at least 6500 BC, during the Mesolith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acts Of The Apostles
The Acts of the Apostles (, ''Práxeis Apostólōn''; ) is the fifth book of the New Testament; it tells of the founding of the Christian Church and the spread of The gospel, its message to the Roman Empire. Acts and the Gospel of Luke make up a two-part work, Luke–Acts, by the same anonymous author. Traditionally, the author is believed to be Luke the Evangelist, a doctor who travelled with Paul the Apostle. It is usually dated to around 80–90 AD, although some scholars suggest 110–120 AD.Tyson, Joseph B., (April 2011)"When and Why Was the Acts of the Apostles Written?" in: The Bible and Interpretation: "...A growing number of scholars prefer a late date for the composition of Acts, i.e., c. 110–120 CE. Three factors support such a date. First, Acts seems to be unknown before the last half of the second century. Second, compelling arguments can be made that the author of Acts was acquainted with some materials written by Josephus, who completed his Antiquities of the J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christopher Columbus
Christopher Columbus (; between 25 August and 31 October 1451 – 20 May 1506) was an Italians, Italian explorer and navigator from the Republic of Genoa who completed Voyages of Christopher Columbus, four Spanish-based voyages across the Atlantic Ocean sponsored by the Catholic Monarchs, opening the way for the widespread European Age of Discovery, exploration and colonization of the Americas. His expeditions were the first known European contact with the Caribbean and Central and South America. The name ''Christopher Columbus'' is the Anglicisation (linguistics), anglicization of the Latin . Growing up on the coast of Liguria, he went to sea at a young age and traveled widely, as far north as the British Isles and as far south as what is now Ghana. He married Portuguese noblewoman Filipa Moniz Perestrelo, who bore a son, Diego Columbus, Diego, and was based in Lisbon for several years. He later took a Castilian mistress, Beatriz Enríquez de Arana, who bore a son, Ferdinand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herodotus
Herodotus (; BC) was a Greek historian and geographer from the Greek city of Halicarnassus (now Bodrum, Turkey), under Persian control in the 5th century BC, and a later citizen of Thurii in modern Calabria, Italy. He wrote the '' Histories'', a detailed account of the Greco-Persian Wars, among other subjects such as the rise of the Achaemenid dynasty of Cyrus. He has been described as " The Father of History", a title conferred on him by the ancient Roman orator Cicero, and the " Father of Lies" by others. The ''Histories'' primarily cover the lives of prominent kings and famous battles such as Marathon, Thermopylae, Artemisium, Salamis, Plataea, and Mycale. His work deviates from the main topics to provide a cultural, ethnographical, geographical, and historiographical background that forms an essential part of the narrative and provides readers with a wellspring of additional information. Herodotus was criticized in his times for his inclusion of "legends an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
