Height is the measurement of vertical distance Distance is a numerical description of how far apart objects are. In physics or everyday discussion, distance may refer to a physical length, or an estimation based on other criteria . In mathematics, a distance function or metric is a generalization of the concept of physical distance. A metric is a function that behaves according to a specific, but has two meanings in common use. It can either indicate how "tall" something is, or how "high up" it is. For example one could say "That is a tall building", or "That airplane is high up in the sky". These can both be referred to as the height of the object, as in "The height of the building is 50 m" or "The height of the airplane is 10,000 m". When used to describe how high something like an airplane A fixed-wing aircraft, typically called an aeroplane, airplane or just plane, is an aircraft capable of flight using forward motion that generates lift as the wing moves through the air. Planes include jet engine and propeller driven vehicles propelled forward by thrust, as well as unpowered aircraft , which use thermals, or warm-air pockets to or mountain peak is from sea level Mean sea level is a measure of the average height of the ocean's surface (such as the halfway point between the mean high tide and the mean low tide); used as a standard in reckoning land elevation, height is more often called altitude Altitude or height is defined based on the context in which it is used . As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context. Although the term altitude is commonly used to. Height is measured along the vertical (y) axis between a specified point and another point.
Contents |
Etymology
English high is derived from Old English hēah, ultimately from Proto-Germanic *xauxa-z, from a PIE The Proto-Indo-European language is the unattested, reconstructed common ancestor of the Indo-European languages, spoken by the Proto-Indo-Europeans. The existence of such a language has been accepted by linguists for over a century, and reconstruction is far advanced and quite detailed base *keuk-. The derived noun hight, also highth, is from Old English híehþo, later héahþu, as it were from Proto-Germanic *xaux-iþa.
In mathematics
Dimensional models define height as the third dimension In mathematics and physics, the dimension of a space or object is informally defined as the minimum number of coordinates needed to specify each point within it. Thus a line has a dimension of one because only one coordinate is needed to specify a point on it. A surface such as a plane or the surface of a cylinder or sphere has a dimension of two, the other two being length In certain contexts, the term "length" is reserved for a certain dimension of an object along which the length is measured. For example it is possible to cut a length of a wire which is shorter than wire thickness. Another example is FET transistors, in which the channel width may be larger than channel length and width In certain contexts, the term "length" is reserved for a certain dimension of an object along which the length is measured. For example it is possible to cut a length of a wire which is shorter than wire thickness. Another example is FET transistors, in which the channel width may be larger than channel length. If we construct a plane formed by the length and width, and construct a line which intersects that plane at a 90 degree angle, then the height is measured along that line.
Height can also refer to:
- the altitude In geometry, an altitude of a triangle is a straight line through a vertex and perpendicular to the opposite side or an extension of the opposite side. The intersection between the (extended) side and the altitude is called the foot of the altitude. This opposite side is called the base of the altitude. The length of the altitude is the distance of a triangle, which is the length from a vertex of a triangle to the line formed by the opposite side;
- a measurement in a circular segment of the length from the point of the circular segment farthest from the center, to trc of the segment (see diagram in circular segment).
In geology
Further information: Above mean sea level The term above mean sea level refers to the elevation (on the ground) or altitude (in the air) of any object, relative to the average sea level datum. AMSL is used extensively in radio (both in broadcasting and other telecommunications uses) by engineers to determine the coverage area a station will be able to reach. It is also used in aviation,Although height is relative to a plane of reference, most measurements of height in the physical world are based upon a zero surface, known as sea level Mean sea level is a measure of the average height of the ocean's surface (such as the halfway point between the mean high tide and the mean low tide); used as a standard in reckoning land elevation. Both altitude and elevation The elevation of a geographic location is its height above a fixed reference point, often the mean sea level. Elevation, or geometric height, is mainly used when referring to points on the Earth's surface, while altitude or geopotential height is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, two synonyms for height, are usually defined as the position of a point above the mean sea level. One can extend the sea-level surface under the continents: naively, one can imagine a lot of narrow canals through the continents. In practice, the sea level under a continent has to be computed from gravity measurements, and slightly different computational methods exist; see Geodesy, heights Geodesy , also named geodetics, a branch of earth sciences, is the scientific discipline that deals with the measurement and representation of the Earth, including its gravitational field, in a three-dimensional time-varying space. Geodesists also study geodynamical phenomena such as crustal motion, tides, and polar motion. For this they design.
In geodesy
Instead of using the sea level, geodesists often prefer to define height from the surface of a reference ellipsoid, see Geodetic system, vertical datum Geodetic systems or geodetic data are used in geodesy, navigation, surveying by cartographers and satellite navigation systems to translate positions indicated on their products to their real position on earth.
Defining the height of geographic landmarks becomes a question of reference. For example, the highest mountain by elevation in reference to sea level belongs to Mount Everest Mount Everest – also called Qomolangma Peak (Mount Sagarmāthā , Tibetan: ཇོ་མོ་གླང་མ; Chinese Zhumulangma Peak simplified Chinese: 珠穆朗玛峰; pinyin: Zhūmùlǎngmǎ Fēng), Chajamlangma (Limbu), or Mount Chomolangma – is the world's highest mountain above sea level at 8,848 metres (29,029 ft). Part of the, located on the border of Nepal Nepal (pronounced /nəˈpal/ nə-PAHL, /-pal/ -PAWL; Nepali: नेपाल [neˈpal] ), officially the Federal Democratic Republic of Nepal, is a himalayan country in South Asia and, as of 2010, the world's most recent nation to become a republic. It is bordered to the north by the People's Republic of China, and to the south, east, and west by and Tibet Tibet is a plateau region in Asia and a disputed territory, north of the Himalayas. It is home to the indigenous Tibetan people, and to some other ethnic groups such as Monpas and Lhobas, and is inhabited by considerable numbers of Han and Hui people. Tibet is the highest region on earth, with an average elevation of 4,900 metres (16,000 ft). It, China China is seen variously as an ancient civilization extending over a large area in East Asia, a nation and/or a multinational entity; however the highest mountain by measurement of apex to base belongs to Mauna Kea Mauna Kea is an inactive volcano in the U.S. state of Hawaii, one of five volcanoes which together form the island of Hawaii. Mauna Kea, according to some etymologists is a contraction of Mauna-o-Wakea, meaning in English, "Mountain of the deity Wakea."[citation needed] The modern form, "Mauna Kea," means "white mountain& in Hawaii The state encompasses nearly the entire volcanic Hawaiian Island chain, which comprises hundreds of islands spread over 1,500 miles . At the southeastern end of the archipelago, the eight "main islands" are (from the northwest to southeast) Niʻihau, Kauaʻi, Oʻahu, Molokaʻi, Lānaʻi, Kahoʻolawe, Maui, and Hawaiʻi. The last is by, United States ^ b. English is the de facto language of American government and the sole language spoken at home by 80% of Americans age five and older. Spanish is the second most commonly spoken language.
In aviation
In aviation terminology, the terms height, altitude, and elevation are not synonyms. Usually, the altitude of an aircraft is measured from sea level, while its height is measured from ground level. Elevation is also measured from sea level, but is most often regarded as a property of the ground. Thus, elevation plus height can equal altitude. But the term altitude has several meanings in aviation; see Altitude in aviation Altitude or height is defined based on the context in which it is used . As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context. Although the term altitude is commonly used to.
In human culture
Human height When populations share genetic background and environmental factors, average height is frequently characteristic within the group. Exceptional height variation within such a population is usually due to gigantism or dwarfism; which are medical conditions due to specific genes or to endocrine abnormalities[citation needed] is one of the areas of study within anthropometry Anthropometry , in physical anthropology, refers to the measurement of the human individual for the purposes of understanding human physical variation. While height variations within a population are largely genetic Genetics , a broad discipline of biology, is the science of heredity, genes, DNA, mutation, etc., and their functions and aspects in living organisms. The fact that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding. However, the modern science of, height variations between populations are mostly environmental.
The United Nations The United Nations Organization or simply United Nations (UN) is an international organization whose stated aims are facilitating cooperation in international law, international security, economic development, social progress, human rights, and the achieving of world peace. The UN was founded in 1945 after World War II to replace the League of uses height (among other statistics Statistics is the formal science of making effective use of numerical data relating to groups of individuals or experiments. It deals with all aspects of this, including not only the collection, analysis and interpretation of such data, but also the planning of the collection of data, in terms of the design of surveys and experiments) to monitor nutritional Nutrition is the provision, to cells and organisms, of the materials necessary (in the form of food) to support life. Many common health problems can be prevented or alleviated with a healthy diet standards in developing nations Developing country is a term generally used to describe a nation with a low level of material well being. There is no single internationally-recognized definition of developed country, and the levels of development may vary widely within so-called developing countries, with some developing countries having high average standards of living. In human populations, average height can distill down complex data about the group's birth, upbringing, social class, diet, and health care system Health care systems are designed to meet the health care needs of target populations. There are a wide variety of health care systems around the world. In some countries, the health care system planning is distributed among market participants, whereas in others planning is made more centrally among governments, trade unions, charities, religious,. However, the height of a human is not always directly connected or related to such things as nutrition, social class, etc.
See also
- CGS unit
- Chinese unit
- Imperial unit Imperial units or the imperial system is a system of units, first defined in the British Weights and Measures Act of 1824, later refined and reduced. The system came into official use across the British Empire. By the late 20th century most nations of the former empire had officially adopted the metric system as their main system of measurement
- International System of Units The International System of Units is the modern form of the metric system and is generally a system of units of measurement devised around seven base units and the convenience of the number ten. It is the world's most widely used system of measurement, both in everyday commerce and in science
- U.S. customary units The United States customary system is the most commonly used system of measurement in the United States. It is similar but not identical to the British Imperial units. The U.S. is the only industrialized nation that does not mainly use the metric system in its commercial and standards activities, although the International System of Units (SI,
- Human height When populations share genetic background and environmental factors, average height is frequently characteristic within the group. Exceptional height variation within such a population is usually due to gigantism or dwarfism; which are medical conditions due to specific genes or to endocrine abnormalities[citation needed]
- Acrophobia Acrophobia is an extreme or irrational fear of heights. It belongs to a category of specific phobias, called space and motion discomfort that share both similar etiology and options for treatment (Fear of heights)
References
Categories: Length Categories: Physical quantities | Dimension | Spacetime
Personal tools
- New features
- Log in / create account
Namespaces
">Variants
Views
">Actions
Navigation
- Main page Hurricane Grace was a short-lived Category 2 hurricane that contributed to the formation of the powerful 1991 "Perfect Storm". Forming on October 26, Grace initially had subtropical origins, meaning it was partially tropical and partially extratropical in nature. It became a tropical cyclone on October 27, and ultimately peaked with
- Contents A portal is an introductory page for a given topic. It complements the main article of the subject by introducing the reader to key articles, images, and categories that further describe the subject. They also include to-do lists that are used mostly by Wikipedia's editors
- Featured content Featured content represents the best that Wikipedia has to offer. These are the articles, pictures, and other contributions that showcase the polished result of the collaborative efforts that drive Wikipedia. All featured content undergoes a thorough review process to ensure that it meets the highest standards and can serve as an example of our
- Current events Worldwide current events | Topic-specific: Science and technology | Sports
- Random article
Interaction
- About Wikipedia
- Community portal
- Recent changes
- Contact Wikipedia
- Donate to Wikipedia
- Help
Toolbox
- What links here
- Related changes
- Upload file
- Special pages
- Permanent link
- Cite this page
Print/export
- Create a book
- Download as PDF
- Printable version
Languages
- العربية
- Brezhoneg
- Български
- Deutsch
- Español
- Esperanto
- فارسی
- Français
- Galego
- ગુજરાતી
- Bahasa Indonesia
- עברית
- Magyar
- Bahasa Melayu
- 日本語
- Norsk (bokmål)
- Norsk (nynorsk)
- Polski
- Português
- Русский
- Simple English
- Suomi
- தமிழ்
- ไทย
- اردو
- West-Vlams
- 中文