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Hero of Alexandria

Index Hero of Alexandria

Hero of Alexandria (ἭρωνGenitive: Ἥρωνος., Heron ho Alexandreus; also known as Heron of Alexandria; c. 10 AD – c. 70 AD) was a mathematician and engineer who was active in his native city of Alexandria, Roman Egypt. [1]

73 relations: Adobe Flash Player, Aeolipile, Alexandria, Ancient Aliens, Ancient Discoveries, Ancient Rome, Architect, Armoured warfare, Atmosphere of Earth, Atomism, Automaton, Bernardino Baldi, Catapult, Ctesibius, Cybernetics, De architectura, Dioptra, Egypt (Roman province), Egyptians, Encyclopædia Britannica, Engineer, Fermat's principle, George Sarton, Greeks in Egypt, Hellenistic period, Hellenization, Heron's formula, Heron's fountain, Heronian mean, Heronian triangle, History (U.S. TV network), Ibn al-Haytham, Industrial Revolution, Internet Archive, Library of Alexandria, Library of Congress, Light, Lost work, Mathematician, Mathematics, Maxima and minima, Mechanics, Methods of computing square roots, Mirror, Musaeum, Odometer, Paul Levinson, Physics, Pierre de Fermat, Piston pump, ..., Pneumatics, Pressure, Reflection (physics), Rocket engine, Science fiction, Steam, Steam engine, Surface area, Syringe, The Plot to Save Socrates, Theatre, Theodolite, Thunder, Time travel, Turbine, University of North Carolina at Charlotte, Vending machine, Vitruvius, Volume, Water, Water organ, Wind power, Windmill. Expand index (23 more) »

Adobe Flash Player

Adobe Flash Player (labeled Shockwave Flash in Internet Explorer and Firefox) is freeware for using content created on the Adobe Flash platform, including viewing multimedia contents, executing rich Internet applications, and streaming audio and video.

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Aeolipile

An aeolipile (or aeolipyle, or eolipile), also known as a Hero's engine, is a simple bladeless radial steam turbine which spins when the central water container is heated.

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Alexandria

Alexandria (or; Arabic: الإسكندرية; Egyptian Arabic: إسكندرية; Ⲁⲗⲉⲝⲁⲛⲇⲣⲓⲁ; Ⲣⲁⲕⲟⲧⲉ) is the second-largest city in Egypt and a major economic centre, extending about along the coast of the Mediterranean Sea in the north central part of the country.

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Ancient Aliens

Ancient Aliens is an American television series that premiered on April 20, 2010, on the History channel.

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Ancient Discoveries

Ancient Discoveries is a television series that premiered on December 21, 2003, on The History Channel.

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Ancient Rome

In historiography, ancient Rome is Roman civilization from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD, encompassing the Roman Kingdom, Roman Republic and Roman Empire until the fall of the western empire.

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Architect

An architect is a person who plans, designs, and reviews the construction of buildings.

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Armoured warfare

Armoured warfare, mechanised warfare or tank warfare is the use of armoured fighting vehicles in modern warfare.

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Atmosphere of Earth

The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity.

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Atomism

Atomism (from Greek ἄτομον, atomon, i.e. "uncuttable", "indivisible") is a natural philosophy that developed in several ancient traditions.

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Automaton

An automaton (plural: automata or automatons) is a self-operating machine, or a machine or control mechanism designed to automatically follow a predetermined sequence of operations, or respond to predetermined instructions.

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Bernardino Baldi

Bernardino Baldi (5 June 1553 – 10 October 1617) was an Italian mathematician and writer.

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Catapult

A catapult is a ballistic device used to launch a projectile a great distance without the aid of explosive devices—particularly various types of ancient and medieval siege engines.

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Ctesibius

Ctesibius or Ktesibios or Tesibius (Κτησίβιος; fl. 285–222 BC) was a Greek inventor and mathematician in Alexandria, Ptolemaic Egypt.

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Cybernetics

Cybernetics is a transdisciplinary approach for exploring regulatory systems—their structures, constraints, and possibilities.

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De architectura

De architectura (On architecture, published as Ten Books on Architecture) is a treatise on architecture written by the Roman architect and military engineer Marcus Vitruvius Pollio and dedicated to his patron, the emperor Caesar Augustus, as a guide for building projects.

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Dioptra

A dioptra (sometimes also named dioptre or diopter from διόπτρα) is a classical astronomical and surveying instrument, dating from the 3rd century BCE.

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Egypt (Roman province)

The Roman province of Egypt (Aigyptos) was established in 30 BC after Octavian (the future emperor Augustus) defeated his rival Mark Antony, deposed Queen Cleopatra VII, and annexed the Ptolemaic Kingdom of Egypt to the Roman Empire.

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Egyptians

Egyptians (مَصريين;; مِصريّون; Ni/rem/en/kīmi) are an ethnic group native to Egypt and the citizens of that country sharing a common culture and a common dialect known as Egyptian Arabic.

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Encyclopædia Britannica

The Encyclopædia Britannica (Latin for "British Encyclopaedia"), published by Encyclopædia Britannica, Inc., is a general knowledge English-language encyclopaedia.

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Engineer

Engineers, as practitioners of engineering, are people who invent, design, analyze, build, and test machines, systems, structures and materials to fulfill objectives and requirements while considering the limitations imposed by practicality, regulation, safety, and cost.

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Fermat's principle

In optics, Fermat's principle or the principle of least time, named after French mathematician Pierre de Fermat, is the principle that the path taken between two points by a ray of light is the path that can be traversed in the least time.

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George Sarton

George Alfred Leon Sarton (31 August 1884 – 22 March 1956), was a Belgian-born American chemist and historian.

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Greeks in Egypt

There has been a large community of Greeks in Egypt, also known as Egyptiotes (Αιγυπτιώτες), from the Hellenistic period until the aftermath of the Egyptian revolution of 1952, when most were forced to leave.

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Hellenistic period

The Hellenistic period covers the period of Mediterranean history between the death of Alexander the Great in 323 BC and the emergence of the Roman Empire as signified by the Battle of Actium in 31 BC and the subsequent conquest of Ptolemaic Egypt the following year.

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Hellenization

Hellenization or Hellenisation is the historical spread of ancient Greek culture, religion and, to a lesser extent, language, over foreign peoples conquered by Greeks or brought into their sphere of influence, particularly during the Hellenistic period following the campaigns of Alexander the Great in the fourth century BC.

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Heron's formula

In geometry, Heron's formula (sometimes called Hero's formula), named after Hero of Alexandria, gives the area of a triangle by requiring no arbitrary choice of side as base or vertex as origin, contrary to other formulae for the area of a triangle, such as half the base times the height or half the norm of a cross product of two sides.

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Heron's fountain

Heron's fountain is a hydraulic machine invented by the 1st century AD inventor, mathematician, and physicist Heron of Alexandria.

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Heronian mean

In mathematics, the Heronian mean H of two non-negative real numbers A and B is given by the formula: It is named after Hero of Alexandria.

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Heronian triangle

In geometry, a Heronian triangle is a triangle that has side lengths and area that are all integers.

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History (U.S. TV network)

History (originally The History Channel from 1995 to 2008) is a history-based digital cable and satellite television network that is owned by A&E Networks, a joint venture between the Hearst Communications and the Disney–ABC Television Group division of the Walt Disney Company.

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Ibn al-Haytham

Hasan Ibn al-Haytham (Latinized Alhazen; full name أبو علي، الحسن بن الحسن بن الهيثم) was an Arab mathematician, astronomer, and physicist of the Islamic Golden Age.

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Industrial Revolution

The Industrial Revolution was the transition to new manufacturing processes in the period from about 1760 to sometime between 1820 and 1840.

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Internet Archive

The Internet Archive is a San Francisco–based nonprofit digital library with the stated mission of "universal access to all knowledge." It provides free public access to collections of digitized materials, including websites, software applications/games, music, movies/videos, moving images, and nearly three million public-domain books.

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Library of Alexandria

The Royal Library of Alexandria or Ancient Library of Alexandria in Alexandria, Egypt, was one of the largest and most significant libraries of the ancient world.

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Library of Congress

The Library of Congress (LOC) is the research library that officially serves the United States Congress and is the de facto national library of the United States.

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Light

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.

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Lost work

A lost work is a document, literary work, or piece of multimedia produced some time in the past of which no surviving copies are known to exist.

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Mathematician

A mathematician is someone who uses an extensive knowledge of mathematics in his or her work, typically to solve mathematical problems.

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Mathematics

Mathematics (from Greek μάθημα máthēma, "knowledge, study, learning") is the study of such topics as quantity, structure, space, and change.

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Maxima and minima

In mathematical analysis, the maxima and minima (the respective plurals of maximum and minimum) of a function, known collectively as extrema (the plural of extremum), are the largest and smallest value of the function, either within a given range (the local or relative extrema) or on the entire domain of a function (the global or absolute extrema).

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Mechanics

Mechanics (Greek μηχανική) is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment.

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Methods of computing square roots

In numerical analysis, a branch of mathematics, there are several square root algorithms or methods of computing the principal square root of a non-negative real number.

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Mirror

A mirror is an object that reflects light in such a way that, for incident light in some range of wavelengths, the reflected light preserves many or most of the detailed physical characteristics of the original light, called specular reflection.

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Musaeum

The Musaeum or Mouseion at Alexandria (Μουσεῖον τῆς Ἀλεξανδρείας), which included the famous Library of Alexandria, was an institution founded by Ptolemy I Soter or, perhaps more likely, by his son Ptolemy II Philadelphus.

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Odometer

An odometer or odograph is an instrument used for measuring the distance travelled by a vehicle, such as a bicycle or car.

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Paul Levinson

Paul Levinson (born March 25, 1947) is an American writer and professor of communications and media studies at Fordham University in New York City.

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Physics

Physics (from knowledge of nature, from φύσις phýsis "nature") is the natural science that studies matterAt the start of The Feynman Lectures on Physics, Richard Feynman offers the atomic hypothesis as the single most prolific scientific concept: "If, in some cataclysm, all scientific knowledge were to be destroyed one sentence what statement would contain the most information in the fewest words? I believe it is that all things are made up of atoms – little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another..." and its motion and behavior through space and time and that studies the related entities of energy and force."Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves."Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physics. (...) You will come to see physics as a towering achievement of the human intellect in its quest to understand our world and ourselves."Physics is an experimental science. Physicists observe the phenomena of nature and try to find patterns that relate these phenomena.""Physics is the study of your world and the world and universe around you." Physics is one of the oldest academic disciplines and, through its inclusion of astronomy, perhaps the oldest. Over the last two millennia, physics, chemistry, biology, and certain branches of mathematics were a part of natural philosophy, but during the scientific revolution in the 17th century, these natural sciences emerged as unique research endeavors in their own right. Physics intersects with many interdisciplinary areas of research, such as biophysics and quantum chemistry, and the boundaries of physics are not rigidly defined. New ideas in physics often explain the fundamental mechanisms studied by other sciences and suggest new avenues of research in academic disciplines such as mathematics and philosophy. Advances in physics often enable advances in new technologies. For example, advances in the understanding of electromagnetism and nuclear physics led directly to the development of new products that have dramatically transformed modern-day society, such as television, computers, domestic appliances, and nuclear weapons; advances in thermodynamics led to the development of industrialization; and advances in mechanics inspired the development of calculus.

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Pierre de Fermat

Pierre de Fermat (Between 31 October and 6 December 1607 – 12 January 1665) was a French lawyer at the Parlement of Toulouse, France, and a mathematician who is given credit for early developments that led to infinitesimal calculus, including his technique of adequality.

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Piston pump

A piston pump is a type of positive displacement pump where the high-pressure seal reciprocates with the piston.

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Pneumatics

Pneumatics (From Greek: πνεύμα) is a branch of engineering that makes use of gas or pressurized air.

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Pressure

Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

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Reflection (physics)

Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated.

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Rocket engine

A rocket engine uses stored rocket propellant mass for forming its high-speed propulsive jet.

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Science fiction

Science fiction (often shortened to Sci-Fi or SF) is a genre of speculative fiction, typically dealing with imaginative concepts such as advanced science and technology, spaceflight, time travel, and extraterrestrial life.

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Steam

Steam is water in the gas phase, which is formed when water boils.

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Steam engine

A steam engine is a heat engine that performs mechanical work using steam as its working fluid.

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Surface area

The surface area of a solid object is a measure of the total area that the surface of the object occupies.

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Syringe

A syringe is a simple reciprocating pump consisting of a plunger (though in modern syringes it's actually a piston) that fits tightly within a cylindrical tube called a barrel.

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The Plot to Save Socrates

The Plot to Save Socrates is a time travel novel by Paul Levinson, first published in 2006.

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Theatre

Theatre or theater is a collaborative form of fine art that uses live performers, typically actors or actresses, to present the experience of a real or imagined event before a live audience in a specific place, often a stage.

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Theodolite

A theodolite is a precision instrument for measuring angles in the horizontal and vertical planes.

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Thunder

Thunder is the sound caused by lightning.

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Time travel

Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically using a hypothetical device known as a time machine.

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Turbine

A turbine (from the Latin turbo, a vortex, related to the Greek τύρβη, tyrbē, meaning "turbulence") is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work.

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University of North Carolina at Charlotte

The University of North Carolina at Charlotte, also known as UNC Charlotte, is a public research university located in Charlotte, North Carolina, United States.

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Vending machine

A vending machine is an automated machine that provides items such as snacks, beverages, cigarettes and lottery tickets to consumers after money, a credit card, or specially designed card is inserted into the machine.

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Vitruvius

Marcus Vitruvius Pollio (c. 80–70 BC – after c. 15 BC), commonly known as Vitruvius, was a Roman author, architect, civil engineer and military engineer during the 1st century BC, known for his multi-volume work entitled De architectura.

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Volume

Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies or contains.

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Water

Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms.

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Water organ

The water organ or hydraulic organ (ὕδραυλις) (early types are sometimes called hydraulos, hydraulus or hydraula) is a type of pipe organ blown by air, where the power source pushing the air is derived by water from a natural source (e.g. by a waterfall) or by a manual pump.

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Wind power

Wind power is the use of air flow through wind turbines to mechanically power generators for electricity.

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Windmill

A windmill is a mill that converts the energy of wind into rotational energy by means of vanes called sails or blades.

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Redirects here:

Hero of alexandria, Heron of Alexander, Heron of Alexandria, Heron of alexandria, On the Dioptra, هيرو السكندري, Ἥρων ὁ Ἀλεξανδρεύς.

References

[1] https://en.wikipedia.org/wiki/Hero_of_Alexandria

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