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Water clock, the Glossary

A water clock or clepsydra is a timepiece by which time is measured by the regulated flow of liquid into (inflow type) or out from (outflow type) a vessel, and where the amount of liquid can then be measured.^[1]

136 relations: Abhisheka, Agora, Ahmad Y. al-Hassan, Akkadian language, Al-Andalus, Alexandria, Amenhotep III, Analog computer, Ancient Egypt, Ancient Greece, Ancient Rome, Andronicus of Cyrrhus, Arabs, Archimedes, Armillary sphere, Astrology, Astronomer, Astronomical clock, Astronomy, Atharvaveda, Athens, Automaton, Babylon, Beijing, Bell, Bernard Gitton, Bernoulli's principle, Borugak Jagyeongnu, Brahmagupta, Brāhmasphuṭasiddhānta, British Museum, Bronze, Buddhism, Byzantium, Celestial globe, Cf., Chain drive, Chronometry, Clay tablet, Clock, Clock tower, CRC Handbook of Chemistry and Physics, Ctesibius, Cuneiform, Damascus, Dar al-Magana, Donald Hill, Drum Tower and Bell Tower of Beijing, Egypt, Elephant clock, ... Expand index (86 more) »
Time measurement systems
Water clocks

Abhisheka

Abhisheka is a religious rite or method of prayer in which a devotee pours a liquid offering on an image or murti of a deity.

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Agora

The agora (ἀγορά, romanized:, meaning "market" in Modern Greek) was a central public space in ancient Greek city-states.

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Ahmad Y. al-Hassan

Ahmad Yousef Al-Hassan (أحمد يوسف الحسن) (June 25, 1925 – April 28, 2012) was a Palestinian/Syrian/Canadian historian of Arabic and Islamic science and technology, educated in Jerusalem, Cairo, and London with a PhD in Mechanical engineering from University College London.

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Akkadian language

Akkadian (translit)John Huehnergard & Christopher Woods, "Akkadian and Eblaite", The Cambridge Encyclopedia of the World's Ancient Languages.

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Al-Andalus

Al-Andalus was the Muslim-ruled area of the Iberian Peninsula.

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Alexandria

Alexandria (الإسكندرية; Ἀλεξάνδρεια, Coptic: Ⲣⲁⲕⲟϯ - Rakoti or ⲁⲗⲉⲝⲁⲛⲇⲣⲓⲁ) is the second largest city in Egypt and the largest city on the Mediterranean coast.

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Amenhotep III

Amenhotep III (jmn-ḥtp(.w),; "Amun is satisfied"), also known as Amenhotep the Magnificent or Amenhotep the Great and Hellenized as Amenophis III, was the ninth pharaoh of the Eighteenth Dynasty.

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Analog computer

An analog computer or analogue computer is a type of computation machine (computer) that uses the continuous variation aspect of physical phenomena such as electrical, mechanical, or hydraulic quantities (analog signals) to model the problem being solved.

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Ancient Egypt

Ancient Egypt was a civilization of ancient Northeast Africa.

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Ancient Greece

Ancient Greece (Hellás) was a northeastern Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity, that comprised a loose collection of culturally and linguistically related city-states and other territories.

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Ancient Rome

In modern historiography, ancient Rome is the Roman civilisation from the founding of the Italian city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD.

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Andronicus of Cyrrhus

Andronicus of Cyrrhus or Andronicus Cyrrhestes (Latin; Ἀνδρόνικος Κυρρήστης, Andrónikos Kyrrhēstēs) was a Hellenized Macedonian astronomer best known for designing the Tower of the Winds in Roman Athens.

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Arabs

The Arabs (عَرَب, DIN 31635:, Arabic pronunciation), also known as the Arab people (الشَّعْبَ الْعَرَبِيّ), are an ethnic group mainly inhabiting the Arab world in West Asia and North Africa.

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Archimedes

Archimedes of Syracuse was an Ancient Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily.

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Armillary sphere

An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centered on Earth or the Sun, that represent lines of celestial longitude and latitude and other astronomically important features, such as the ecliptic.

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Astrology

Astrology is a range of divinatory practices, recognized as pseudoscientific since the 18th century, that propose that information about human affairs and terrestrial events may be discerned by studying the apparent positions of celestial objects.

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Astronomer

An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth.

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Astronomical clock

An astronomical clock, horologium, or orloj is a clock with special mechanisms and dials to display astronomical information, such as the relative positions of the Sun, Moon, zodiacal constellations, and sometimes major planets.

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Astronomy

Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos.

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Atharvaveda

The Atharvaveda or Atharva Veda (अथर्ववेद,, from अथर्वन्, and वेद, "knowledge") or Atharvana Veda (अथर्वणवेद) is the "knowledge storehouse of atharvāṇas, the procedures for everyday life".

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Athens

Athens is the capital and largest city of Greece.

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Automaton

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

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Babylon

Babylon was an ancient city located on the lower Euphrates river in southern Mesopotamia, within modern-day Hillah, Iraq, about 85 kilometers (55 miles) south of modern day Baghdad.

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Beijing

Beijing, previously romanized as Peking, is the capital of China.

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Bell

A bell is a directly struck idiophone percussion instrument.

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Bernard Gitton

Bernard Gitton; born 24 June 1935) is a French physicist and artist who has built modern water clocks, fountains and other devices relating art and science.

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Bernoulli's principle

Bernoulli's principle is a key concept in fluid dynamics that relates pressure, speed and height.

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Borugak Jagyeongnu

The Borugak Jagyeongnu ("Water Clock of Borugak Pavilion"), classified as a scientific instrument, is the 229th National Treasure of South Korea and was designated by the South Korean government on March 3, 1985. Water clock and Borugak Jagyeongnu are water clocks.

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Brahmagupta

Brahmagupta (–) was an Indian mathematician and astronomer.

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Brāhmasphuṭasiddhānta

The Brāhma-sphuṭa-siddhānta ("Correctly Established Doctrine of Brahma", abbreviated BSS) is a main work of Brahmagupta, written c. 628.

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British Museum

The British Museum is a public museum dedicated to human history, art and culture located in the Bloomsbury area of London.

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Bronze

Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals, such as phosphorus, or metalloids, such as arsenic or silicon.

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Buddhism

Buddhism, also known as Buddha Dharma and Dharmavinaya, is an Indian religion and philosophical tradition based on teachings attributed to the Buddha, a wandering teacher who lived in the 6th or 5th century BCE.

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Byzantium

Byzantium or Byzantion (Βυζάντιον) was an ancient Thracian settlement and later a Greek city in classical antiquity that became known as Constantinople in late antiquity and which is known as Istanbul today.

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Celestial globe

Celestial globes show the apparent positions of the stars in the sky.

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Cf.

The abbreviation cf. (short for either Latin confer or conferatur, both meaning 'compare') is used in writing to refer the reader to other material to make a comparison with the topic being discussed.

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Chain drive

Chain drive is a way of transmitting mechanical power from one place to another.

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Chronometry

Chronometry or horology is the science studying the measurement of time and timekeeping. Chronometry enables the establishment of standard measurements of time, which have applications in a broad range of social and scientific areas. Horology usually refers specifically to the study of mechanical timekeeping devices, while chronometry is broader in scope, also including biological behaviours with respect to time (biochronometry), as well as the dating of geological material (geochronometry). Water clock and chronometry are timekeeping.

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Clay tablet

In the Ancient Near East, clay tablets (Akkadian 𒁾) were used as a writing medium, especially for writing in cuneiform, throughout the Bronze Age and well into the Iron Age.

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Clock

A clock or chronometer is a device that measures and displays time. Water clock and clock are time measurement systems.

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Clock tower

Clock towers are a specific type of structure that house a turret clock and have one or more clock faces on the upper exterior walls.

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CRC Handbook of Chemistry and Physics

The CRC Handbook of Chemistry and Physics is a comprehensive one-volume reference resource for science research.

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Ctesibius

Ctesibius or Ktesibios or Tesibius (Κτησίβιος; BCE) was a Greek inventor and mathematician in Alexandria, Ptolemaic Egypt.

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Cuneiform

Cuneiform is a logo-syllabic writing system that was used to write several languages of the Ancient Near East.

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Damascus

Damascus (Dimašq) is the capital and largest city of Syria, the oldest current capital in the world and, according to some, the fourth holiest city in Islam.

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Dar al-Magana

Dar al-Magana is a 14th-century building in Fes, Morocco, built by the Marinid Sultan Abu Inan Faris which houses a weight-powered water clock.

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Donald Hill

Donald Routledge Hill (6 August 1922 – 30 May 1994)D.

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Drum Tower and Bell Tower of Beijing

The Drum Tower of Beijing, or Gulou, is situated at the northern end of the central axis of the Inner City to the north of Di'anmen Street.

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Egypt

Egypt (مصر), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and the Sinai Peninsula in the southwest corner of Asia.

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Elephant clock

The elephant clock was a model of water clock invented by the medieval Islamic engineer Ismail al-Jazari (1136–1206). Water clock and elephant clock are water clocks.

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Emperor Tenji

, known first as and later as until his accession, was the 38th emperor of Japan who reigned from 668 to 671.

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Enuma Anu Enlil

Enuma Anu Enlil (The Assyrian Dictionary, volume 7 (I/J) – inūma, The Oriental Institute, Chicago 1960, s. 160. When Anu and Enlil), abbreviated EAE, is a major series of 68 or 70 tablets (depending on the recension) dealing with Babylonian astrology.

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Epicyclic gearing

An epicyclic gear train (also known as a planetary gearset) is a gear reduction assembly consisting of two gears mounted so that the center of one gear (the "planet") revolves around the center of the other (the "sun").

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Escapement

An escapement is a mechanical linkage in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear train to move forward, advancing the clock's hands.

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Europe

Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere.

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Fez, Morocco

Fez or Fes (fās) is a city in northern inland Morocco and the capital of the Fès-Meknès administrative region.

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Float chamber

A float chamber is a device for automatically regulating the supply of a liquid to a system.

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Giovanni Dondi dall'Orologio

Giovanni Dondi dall'Orologio (c. 1330 – 1388), also known as Giovanni de' Dondi, was an Italian physician, astronomer and mechanical engineer in Padua, now in Italy.

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Gonabad

Gonabad (گناباد) is a city in the Central District of Gonabad County, Razavi Khorasan Province, Iran, serving as capital of both the county and the district.

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Gong

A gongFrom Indonesian and gong; ꦒꦺꦴꦁ gong; p; どら|dora; គង kong; ฆ้อง khong; cồng chiêng; কাঁহ kãh is a percussion instrument originating in East Asia and Southeast Asia.

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Greater Iran

Greater Iran or Greater Persia (ایران بزرگ), also called the Iranosphere or the Persosphere, is an expression that denotes a wide socio-cultural region comprising parts of West Asia, the South Caucasus, Central Asia, South Asia, and East Asia (specifically Xinjiang)—all of which have been affected, to some degree, by the Iranian peoples and the Iranian languages.

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Greeks

The Greeks or Hellenes (Έλληνες, Éllines) are an ethnic group and nation native to Greece, Cyprus, southern Albania, Anatolia, parts of Italy and Egypt, and to a lesser extent, other countries surrounding the Eastern Mediterranean and Black Sea. They also form a significant diaspora, with many Greek communities established around the world..

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Hagen–Poiseuille equation

In nonideal fluid dynamics, the Hagen–Poiseuille equation, also known as the Hagen–Poiseuille law, Poiseuille law or Poiseuille equation, is a physical law that gives the pressure drop in an incompressible and Newtonian fluid in laminar flow flowing through a long cylindrical pipe of constant cross section.

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Hellenistic period

In classical antiquity, the Hellenistic period covers the time in Mediterranean history after Classical Greece, between the death of Alexander the Great in 323 BC and the death of Cleopatra in 30 BC, which was followed by the ascendancy of the Roman Empire, as signified by the Battle of Actium in 31 BC and the Roman conquest of Ptolemaic Egypt the following year, which eliminated the last major Hellenistic kingdom.

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Hero of Alexandria

Hero of Alexandria (Ἥρων ὁ Ἀλεξανδρεύς,, also known as Heron of Alexandria; probably 1st or 2nd century AD) was a Greek mathematician and engineer who was active in Alexandria in Egypt during the Roman era.

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Herophilos

Herophilos (Ἡρόφιλος; 335–280 BC), sometimes Latinised Herophilus, was a Greek physician regarded as one of the earliest anatomists.

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Hindu astrology

Hindu astrology, also called Indian astrology, Jyotisha (translit-script) and, more recently, Vedic astrology, is the traditional Hindu system of astrology.

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History Channel

History (stylized in all caps), formerly and commonly known as the History Channel, is an American pay television network and flagship channel owned by A&E Networks, a joint venture between Hearst Communications and The Walt Disney Company's General Entertainment Content Division.

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History of China

The history of China spans several millennia across a wide geographical area.

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History of India

Anatomically modern humans first arrived on the Indian subcontinent between 73,000 and 55,000 years ago.

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History of timekeeping devices

The history of timekeeping devices dates back to when ancient civilizations first observed astronomical bodies as they moved across the sky. Water clock and history of timekeeping devices are timekeeping.

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Hourglass

An hourglass (or sandglass, sand timer, or sand clock) is a device used to measure the passage of time.

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Huan Tan

Huan Tan (BC– AD28) was a Chinese philosopher, poet, and politician of the Western Han and its short-lived interregnum between AD9 and 23, known as the Xin dynasty.

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Ibn Khalaf al-Muradi

Ibn Khalaf al-Murādī, (أبو جعفر علي ابن خلف المرادي.; 11th century) was an Andalusian engineer.

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Indus Valley Civilisation

The Indus Valley Civilisation (IVC), also known as the Indus Civilisation, was a Bronze Age civilisation in the northwestern regions of South Asia, lasting from 3300 BCE to 1300 BCE, and in its mature form from 2600 BCE to 1900 BCE.

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Iran

Iran, officially the Islamic Republic of Iran (IRI), also known as Persia, is a country in West Asia. It borders Turkey to the northwest and Iraq to the west, Azerbaijan, Armenia, the Caspian Sea, and Turkmenistan to the north, Afghanistan to the east, Pakistan to the southeast, the Gulf of Oman and the Persian Gulf to the south.

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Isfahan

Isfahan or Esfahan (اصفهان) is a major city in the Central District of Isfahan County, Isfahan province, Iran.

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Islamic Golden Age

The Islamic Golden Age was a period of scientific, economic and cultural flourishing in the history of Islam, traditionally dated from the 8th century to the 13th century.

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Ismail al-Jazari

Badīʿ az-Zaman Abu l-ʿIzz ibn Ismāʿīl ibn ar-Razāz al-Jazarī (1136–1206, بَدِيعُ الزَّمانِ أَبُو العِزِّ بْنُ إسْماعِيلَ بْنِ الرَّزَّازِ الجَزَرِيّ) was a Muslim polymath: a scholar, inventor, mechanical engineer, artisan and artist from the Artuqid Dynasty of Jazira in Mesopotamia.

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Jang Yeong-sil

Jang Yeong-sil (1390 – after 1442) was a Korean mechanical engineer, scientist, and inventor during the Joseon dynasty (1392–1897).

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Japan

Japan is an island country in East Asia, located in the Pacific Ocean off the northeast coast of the Asian mainland.

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Joseon

Joseon, officially Great Joseon State, was a dynastic kingdom of Korea that existed for 505 years.

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Korea

Korea (translit in South Korea, or label in North Korea) is a peninsular region in East Asia consisting of the Korean Peninsula (label in South Korea, or label in North Korea), Jeju Island, and smaller islands.

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Lalla

Lalla (720–790 CE) was an Indian mathematician, astronomer, and astrologer who belonged to a family of astronomers.

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Liang Lingzan

Liang Lingzan was a Chinese artist, astronomer, inventor, mechanical engineer and politician of the Kaiyuan era during the Tang dynasty.

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Lingam

A lingam (लिङ्ग, lit. "sign, symbol or mark"), sometimes referred to as linga or Shiva linga, is an abstract or aniconic representation of the Hindu god Shiva in Shaivism.

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Liquid

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a nearly constant volume independent of pressure.

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Mannequin

A mannequin (sometimes spelled as manikin and also called a dummy, lay figure, or dress form) is a doll, often articulated, used by artists, tailors, dressmakers, window dressers and others, especially to display or fit clothing and show off different fabrics and textiles.

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March equinox

The March equinox or northward equinox is the equinox on the Earth when the subsolar point appears to leave the Southern Hemisphere and cross the celestial equator, heading northward as seen from Earth.

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Mercury (element)

Mercury is a chemical element; it has symbol Hg and atomic number 80.

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Mohenjo-daro

Mohenjo-daro (موهن جو دڙو,; موئن جو دڑو) is an archaeological site in Larkana District, Sindh, Pakistan.

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Month

A month is a unit of time, used with calendars, that is approximately as long as a natural orbital period of the Moon; the words month and Moon are cognates.

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MUL.APIN

MUL.APIN is the conventional title given to a Babylonian compendium that deals with many diverse aspects of Babylonian astronomy and astrology.

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Nalanda mahavihara

Nalanda (IAST) was a renowned Buddhist mahavihara (great monastery) in ancient and medieval Magadha (modern-day Bihar), eastern India.

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Nowruz

Nowruz or Navroz (نوروز) is the Iranian New Year or Persian New Year.

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Octagon

In geometry, an octagon is an eight-sided polygon or 8-gon.

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Old Babylonian Empire

The Old Babylonian Empire, or First Babylonian Empire, is dated to, and comes after the end of Sumerian power with the destruction of the Third Dynasty of Ur, and the subsequent Isin-Larsa period.

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Pancha-siddhantika

Pancha-siddhantika (IAST: Pañca-siddhāntikā) is a 6th-century CE Sanskrit-language text written by astrologer-astronomer Varāhamihira in present-day Ujjain, India.

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Pendulum

A pendulum is a device made of a weight suspended from a pivot so that it can swing freely.

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Philo of Byzantium

Philo of Byzantium (Φίλων ὁ Βυζάντιος, Phílōn ho Byzántios), also known as Philo Mechanicus (Latin for "Philo the Engineer"), was a Greek engineer, physicist and writer on mechanics, who lived during the latter half of the 3rd century BC.

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Pipette

A pipette (sometimes spelled as pipet) is a type of laboratory tool commonly used in chemistry and biology to transport a measured volume of liquid, often as a media dispenser.

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Precinct of Amun-Re

The Precinct of Amun-Re, located near Luxor, Egypt, is one of the four main temple enclosures that make up the immense Karnak Temple Complex.

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Pressure head

In fluid mechanics, pressure head is the height of a liquid column that corresponds to a particular pressure exerted by the liquid column on the base of its container.

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Program (machine)

A program is a set of instructions used to control the behavior of a machine.

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Proportionality (mathematics)

In mathematics, two sequences of numbers, often experimental data, are proportional or directly proportional if their corresponding elements have a constant ratio.

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Qanat

A qanat or kārīz is a system for transporting water from an aquifer or water well to the surface, through an underground aqueduct; the system originated approximately 3,000 years ago in Iran.

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Regulator (automatic control)

In automatic control, a regulator is a device which has the function of maintaining a designated characteristic.

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Room temperature

Room temperature, colloquially, denotes the range of air temperatures most people find comfortable indoors while dressed in typical clothing.

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Sejong the Great

Sejong (15 May 1397 – 30 March 1450), personal name Yi Do, commonly known as Sejong the Great, was the fourth monarch of the Joseon dynasty of Korea.

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September equinox

The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward.

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Su Song

Su Song (1020–1101), courtesy name Zirong, was a Chinese polymathic scientist and statesman.

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Subhash Kak

Subhash Kak is an Indian-American computer scientist and historical revisionist.

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Summer solstice

The summer solstice or estival solstice occurs when one of Earth's poles has its maximum tilt toward the Sun.

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Sundial

A sundial is a horological device that tells the time of day (referred to as civil time in modern usage) when direct sunlight shines by the apparent position of the Sun in the sky. Water clock and sundial are Egyptian inventions.

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Surya Siddhanta

The Surya Siddhanta is a Sanskrit treatise in Indian astronomy dated to 4th to 5th century,Menso Folkerts, Craig G. Fraser, Jeremy John Gray, John L. Berggren, Wilbur R. Knorr (2017),, Encyclopaedia Britannica, Quote: "(...) its Hindu inventors as discoverers of things more ingenious than those of the Greeks.

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Temperature

Temperature is a physical quantity that quantitatively expresses the attribute of hotness or coldness.

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Tirgan

Tirgan (تیرگان, Tirgān), is a early summer ancient Iranian festival, celebrated annually on Tir 13 (July 2, 3, or 4).

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Torricelli's law

Torricelli's law, also known as Torricelli's theorem, is a theorem in fluid dynamics relating the speed of fluid flowing from an orifice to the height of fluid above the opening.

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Tower of the Winds

The Tower of the Winds, also known by other names, is an octagonal Pentelic marble tower in the Roman Agora in Athens, named after the eight large reliefs of wind gods around its top.

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Unified Silla

Unified Silla, or Late Silla, is the name often applied to the Korean kingdom of Silla, one of the Three Kingdoms of Korea, after 668 CE.

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University of Texas Press

The University of Texas Press (or UT Press) is a university press that is part of the University of Texas at Austin.

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Varāhamihira

Varāhamihira (6th century CE, possibly 505 – 587), also called Varāha or Mihira, was an astrologer-astronomer who lived in or around Ujjain in present-day Madhya Pradesh, India.

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Vedanga

The Vedanga (वेदांग, "limb of the Veda-s"; plural form: वेदांगानि) are six auxiliary disciplines of Hinduism that developed in ancient times and have been connected with the study of the Vedas:James Lochtefeld (2002), "Vedanga" in The Illustrated Encyclopedia of Hinduism, Vol.

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Verge escapement

The verge (or crown wheel) escapement is the earliest known type of mechanical escapement, the mechanism in a mechanical clock that controls its rate by allowing the gear train to advance at regular intervals or 'ticks'.

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Viscosity

The viscosity of a fluid is a measure of its resistance to deformation at a given rate.

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Vitruvius

Vitruvius (–70 BC – after) was a Roman architect and engineer during the 1st century BC, known for his multi-volume work titled De architectura.

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Water wheel

A water wheel is a machine for converting the energy of flowing or falling water into useful forms of power, often in a watermill. Water clock and water wheel are Egyptian inventions.

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Weather vane

A wind vane, weather vane, or weathercock is an instrument used for showing the direction of the wind.

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Winter solstice

The winter solstice, also called the hibernal solstice, occurs when either of Earth's poles reaches its maximum tilt away from the Sun.

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Yaldā Night

Yaldā Night (شب یلدا shab-e yalda) or Chelle Night (also Chellah Night, شب چلّه shab-e chelle) is an ancient festival in Iran, Afghanistan, Azerbaijan, Tajikistan, Iraqi Kurdistan, Uzbekistan, Turkmenistan, Dagestan and Turkey that is celebrated on the winter solstice.

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References

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

Also known as Clepsydra (clock), Rokoku, Rōkoku, Water clocks, Water powered clock, Water powered clocks, Water-clock, Water-powered clock, Waterclock, Waterclocks.

, Emperor Tenji, Enuma Anu Enlil, Epicyclic gearing, Escapement, Europe, Fez, Morocco, Float chamber, Giovanni Dondi dall'Orologio, Gonabad, Gong, Greater Iran, Greeks, Hagen–Poiseuille equation, Hellenistic period, Hero of Alexandria, Herophilos, Hindu astrology, History Channel, History of China, History of India, History of timekeeping devices, Hourglass, Huan Tan, Ibn Khalaf al-Muradi, Indus Valley Civilisation, Iran, Isfahan, Islamic Golden Age, Ismail al-Jazari, Jang Yeong-sil, Japan, Joseon, Korea, Lalla, Liang Lingzan, Lingam, Liquid, Mannequin, March equinox, Mercury (element), Mohenjo-daro, Month, MUL.APIN, Nalanda mahavihara, Nowruz, Octagon, Old Babylonian Empire, Pancha-siddhantika, Pendulum, Philo of Byzantium, Pipette, Precinct of Amun-Re, Pressure head, Program (machine), Proportionality (mathematics), Qanat, Regulator (automatic control), Room temperature, Sejong the Great, September equinox, Su Song, Subhash Kak, Summer solstice, Sundial, Surya Siddhanta, Temperature, Tirgan, Torricelli's law, Tower of the Winds, Unified Silla, University of Texas Press, Varāhamihira, Vedanga, Verge escapement, Viscosity, Vitruvius, Water wheel, Weather vane, Winter solstice, Yaldā Night, Yazd, Yi Xing, Zhang Heng, Zhang Sixun, Zibad, Zodiac.

Water clock, the Glossary

Table of Contents

See also

Time measurement systems

Water clocks

References