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Water Clocks
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 is then measured. Water clocks are one of the oldest time-measuring instruments. The bowl-shaped outflow is the simplest form of a water clock and is known to have existed in Babylon, Egypt, and Persia around the 16th century BC. Other regions of the world, including India and China, also have early evidence of water clocks, but the earliest dates are less certain. Some authors, however, claim that water clocks appeared in China as early as 4000 BC. Water clocks were also used in ancient Greece and ancient Rome, described by technical writers such as Ctesibius and Vitruvius. Designs A water clock uses the flow of water to measure time. If viscosity is neglected, the physical principle required to study such clocks is Torricelli's law. There are two types of water clocks: inflow and out ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AGMA Clepsydre
Agma is a name for the velar nasal speech sound and the letter ⟨⟩ that stands for it. AGMA may refer to: * Alliance for Gray Market and Counterfeit Abatement, an anti-counterfeiting and gray market organization * American Gear Manufacturers Association, a trade group for companies involved in gears, couplings and related power transmission components and equipment * American Guild of Musical Artists, an entertainment labor union * Association of Greater Manchester Authorities, the local government association for Greater Manchester, England {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. The impulse action transfers energy to the clock's timekeeping element (usually a pendulum or balance wheel) to replace the energy lost to friction during its cycle and keep the timekeeper oscillating. The escapement is driven by force from a coiled spring or a suspended weight, transmitted through the timepiece's gear train. Each swing of the pendulum or balance wheel releases a tooth of the escapement's ''escape wheel'', allowing the clock's gear train to advance or "escape" by a fixed amount. This regular periodic advancement moves the clock's hands forward at a steady rate. At the same time, the tooth gives the timekeeping element a push, before another tooth catches on the escapement's pallet, returning the escapement to its "locked" state. The sudden stopping of the esc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Temple Of Amen-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. The precinct is by far the largest of these and the only one that is open to the general public. The temple complex is dedicated to the principal god of the Theban Triad, Amun, in the form of Amun-Re. The site occupies some 250,000 m² and contains many structures and monuments. The main temple itself, the Temple of Amun, covers some 61 acres. Some parts of the complex are closed or semi-closed, including large parts of the North-South Axis (the 8th, 9th, and 10th pylons), which are under active excavation or restoration. The whole southeast corner is semi-closed. The northwest corner is a museum that requires an additional ticket to visit. Most of the southwest is an open-air assembling area containing millions of stone fragments, from small to huge, laid out in long rows, awaiting reassembly into their respective monuments. The area is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amenhotep III
Amenhotep III ( egy, jmn-ḥtp(.w), ''Amānəḥūtpū'' , "Amun is Satisfied"; Hellenized as Amenophis III), also known as Amenhotep the Magnificent or Amenhotep the Great, was the ninth pharaoh of the Eighteenth Dynasty. According to different authors, he ruled Egypt from June 1386 to 1349 BC, or from June 1388 BC to December 1351 BC/1350 BC, after his father Thutmose IV died. Amenhotep was Thutmose's son by a minor wife, Mutemwiya. His reign was a period of unprecedented prosperity and splendour, when Egypt reached the peak of its artistic and international power. When he died in the 38th or 39th year of his reign he was succeeded by his son Amenhotep IV, who later changed his name to Akhenaten. Family and early life Amenhotep was the son of Thutmose IV and his minor wife Mutemwiya. He was born probably around 1401 BC. Later in his life, Amenhotep commissioned the depiction of his divine birth to be displayed at Luxor Temple. Amenhotep claimed that his true father was the g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fragment Of A Basalt Water-clock With Evaporation Time Markers On Interior As Dots On Djed And Was Hieroglyphs
Fragment may refer to: Entertainment Television and film * "Fragments" (''Torchwood''), an episode from the BBC TV series * "Fragments", an episode from the Canadian TV series ''Sanctuary'' * "Fragments" (Steven Universe Future), an episode from the American TV series ''Steven Universe Future'' * ''Fragments'' (film) (a.k.a. ''Winged Creatures''), a 2009 film * '' Fragments: Chronicle of a Vanishing'', a 1991 Croatian film Music * "Fragments" (song), a song by Jack Johnson * "Fragments", a song from ''Endless Wire'' (The Who album) * ''Fragments'' (Paul Bley album), a 1987 album by jazz pianist Paul Bley * ''Fragments'', an album by the Danish singer Jakob Sveistrup * ''Fragments'' (EP), an EP by Rapids! * ''Fragments'', an EP by Chipzel * ''Fragments'' (Bonobo album), a 2022 album by British producer Bonobo Other * ''Fragments'', a play by Edward Albee * ''Fragments: Memories of a Wartime Childhood 1939–1948'', a fictional memoir of Holocaust survival by Binjamin Wil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pendulum Clock
A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is a harmonic oscillator: It swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates. From its invention in 1656 by Christiaan Huygens, inspired by Galileo Galilei, until the 1930s, the pendulum clock was the world's most precise timekeeper, accounting for its widespread use. Throughout the 18th and 19th centuries, pendulum clocks in homes, factories, offices, and railroad stations served as primary time standards for scheduling daily life, work shifts, and public transportation. Their greater accuracy allowed for the faster pace of life which was necessary for the Industrial Revolution. The home pendulum clock was replaced by less-expensive, synchronous electric clock, synchronous, electric clocks in the 1930s and '40s. Pendulum clocks are now kept mostly for their Interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. In the narrowest sense of the word, it consists of a flat plate (the ''dial'') and a gnomon, which casts a shadow onto the dial. As the Sun appears to move through the sky, the shadow aligns with different hour-lines, which are marked on the dial to indicate the time of day. The ''style'' is the time-telling edge of the gnomon, though a single point or ''nodus'' may be used. The gnomon casts a broad shadow; the shadow of the style shows the time. The gnomon may be a rod, wire, or elaborately decorated metal casting. The style must be parallel to the axis of the Earth's rotation for the sundial to be accurate throughout the year. The style's angle from horizontal is equal to the sundial's geographical latitude. The term ''sundial'' can refer to any device that uses the Sun's altitude or azimut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north toward the East China Sea, Philippine Sea, and Taiwan in the south. Japan is a part of the Ring of Fire, and spans Japanese archipelago, an archipelago of List of islands of Japan, 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa Island, Okinawa. Tokyo is the Capital of Japan, nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the List of countries and dependencies by population, eleventh most populous country in the world, as well as one of the List of countries and dependencies by population density, most densely populated and Urbanization by country, urbanized. About three-fourths of Geography of Japan, the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korea
Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic of Korea) comprising its southern half. Korea consists of the Korean Peninsula, Jeju Island, and several minor islands near the peninsula. The peninsula is bordered by China to the northwest and Russia to the northeast. It is separated from Japan to the east by the Korea Strait and the Sea of Japan (East Sea). During the first half of the 1st millennium, Korea was divided between three states, Goguryeo, Baekje, and Silla, together known as the Three Kingdoms of Korea. In the second half of the 1st millennium, Silla defeated and conquered Baekje and Goguryeo, leading to the "Unified Silla" period. Meanwhile, Balhae formed in the north, superseding former Goguryeo. Unified Silla eventually collapsed into three separate states due to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia and it is located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. Comprising the westernmost peninsulas of Eurasia, it shares the continental landmass of Afro-Eurasia with both Africa and Asia. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south and Asia to the east. Europe is commonly considered to be Boundaries between the continents of Earth#Asia and Europe, separated from Asia by the drainage divide, watershed of the Ural Mountains, the Ural (river), Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea and the waterways of the Turkish Straits. "Europe" (pp. 68–69); "Asia" (pp. 90–91): "A commonly accepted division between Asia and E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Program (machine)
A program is a set of instructions used to control the behavior of a machine. Examples of such programs include: *The sequence of cards used by a Jacquard loom to produce a given pattern within weaved cloth. Invented in 1801, it used holes in punched cards to represent sewing loom arm movements in order to generate decorative patterns automatically. *A computer program (software) is a list of instructions to be executed by a computer. *Barrels, punched cards and music rolls encoding music to be played by player pianos, fairground organs, barrel organs and music boxes. *A music sequencer is a programmable musical instrument. It was the earliest type of programmable machine. The first music sequencer was an automated flute player invented by the Persian Banu Musa brothers, described in their ''Book of Ingenious Devices'', in the 9th century. In 1206, the Muslim inventor Al-Jazari (in the Artuqid Sultnate) invented programmable automata, which incorporated the first programmable d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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