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Ancient Discoveries
''Ancient Discoveries'' is a television series that premiered on December 21, 2003, on The History Channel. The program focused on ancient technologies. The show's theme was that many inventions which are thought to be modern have ancient roots or in some cases may have been lost and then reinvented. The program was a follow-up to a special originally broadcast in 2005 which focused on technologies from the Ancient Roman era such as the Antikythera mechanism and inventors such as Heron of Alexandria. Episodes of the regular series expanded to cover other areas such as Egypt, China and East Asia, and the Islamic world. ''Ancient Discoveries'' was made for The History Channel by Wild Dream Films based in Cardiff in the UK. Much of the filming was on location across the world. The series used contributions from archaeologists and other experts, footage of historical sites and artifacts, computer generated reconstructions, and dramatized reconstructions along with experiments an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History (American TV Channel)
History (formerly The History Channel from January 1, 1995 to February 15, 2008, stylized as HISTORY) is an American pay television television network, network and flagship channel owned by A&E Networks, a joint venture between Hearst Communications and the The Walt Disney Company, Disney General Entertainment Content division of the Walt Disney Company. The network was originally focused on history-based as well as social and science documentaries. During the late 2000s, History devolved into reality television programming. In addition to this change in format, the network has been criticized by many scientists, historians, and skeptics for broadcasting pseudo-documentaries and pseudoscientific, unsubstantiated, sensational investigative programming. As of February 2015, around 96,149,000 American households (82.6% of households with television) receive the network's flagship channel, History. International localized versions of History are available, in various forms, in India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Fire
Greek fire was an incendiary weapon used by the Eastern Roman Empire beginning . Used to set fire to enemy ships, it consisted of a combustible compound emitted by a flame-throwing weapon. Some historians believe it could be ignited on contact with water, and was probably based on naphtha and quicklime. The Byzantines typically used it in naval battles to great effect, as it could continue burning while floating on water. The technological advantage it provided was responsible for many key Byzantine military victories, most notably the salvation of Constantinople from the first and second Arab sieges, thus securing the empire's survival. The impression made by Greek fire on the western European Crusaders was such that the name was applied to any sort of incendiary weapon, including those used by Arabs, the Chinese, and the Mongols. However, these mixtures used formulas different from that of Byzantine Greek fire, which was a closely guarded state secret. Byzantines also used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automaton
An automaton (; plural: 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.Automaton – Definition and More from the Free Merriam-Webster Dictionary http://www.merriam-webster.com/dictionary/automaton Some automata, such as Jacquemart (bellstriker), bellstrikers in mechanical clocks, are designed to give the illusion to the casual observer that they are operating under their own power. Since long ago, the term is commonly associated with automated puppets that resemble moving humans or animals, built to impress and/or to entertain people. Animatronics are a modern type of automata with electronics, often used for the portrayal of characters in films and in theme park attractions. Etymology The word "automaton" is the latinization of the Ancient Greek , , (neuter) "acting of one's own will". This word was first used by Homer to describe an auto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robotics
Robotics is an interdisciplinary branch of computer science and engineering. Robotics involves design, construction, operation, and use of robots. The goal of robotics is to design machines that can help and assist humans. Robotics integrates fields of mechanical engineering, electrical engineering, information engineering, mechatronics, electronics, bioengineering, computer engineering, control engineering, software engineering, mathematics, etc. Robotics develops machines that can substitute for humans and replicate human actions. Robots can be used in many situations for many purposes, but today many are used in dangerous environments (including inspection of radioactive materials, bomb detection and deactivation), manufacturing processes, or where humans cannot survive (e.g. in space, underwater, in high heat, and clean up and containment of hazardous materials and radiation). Robots can take any form, but some are made to resemble humans in appearance. This is claim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Clock
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 outflo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossbow
A crossbow is a ranged weapon using an elastic launching device consisting of a bow-like assembly called a ''prod'', mounted horizontally on a main frame called a ''tiller'', which is hand-held in a similar fashion to the stock of a long firearm. Crossbows shoot arrow-like projectiles called '' bolts'' or ''quarrels''. A person who shoots crossbow is called a ''crossbowman'' or an '' arbalist'' (after the arbalest, a European crossbow variant used during the 12th century). Although crossbows and bows use the same launch principle, the difference is that an archer must maintain a bow's draw manually by pitching the bowstring with fingers, pulling it back with arm and back muscles and then holding that same form in order to aim (which distresses the body and demands significant physical strength and stamina); while a crossbow utilizes a locking mechanism to maintain the draw, limiting the shooter's exertion to only pulling the string into lock and then releasing the shot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flamethrower
A flamethrower is a ranged incendiary device designed to project a controllable jet of fire. First deployed by the Byzantine Empire in the 7th century AD, flamethrowers saw use in modern times during World War I, and more widely in World War II as a tactical siege weapon against fortifications. Most military flamethrowers use liquid fuel, typically either gasoline or diesel, but commercial flamethrowers are generally blowtorches using gaseous fuels such as propane; gases are safer in peacetime applications, because their flames have less mass flow rate and dissipate faster, and often are easier to extinguish when necessary. The military use of flamethrowers is restricted through the Protocol on Incendiary Weapons. Apart from the military applications, flamethrowers have peacetime applications where there is a need for controlled burning, such as in sugarcane harvesting and other land-management tasks. Various forms are designed for an operator to carry, while others a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Gunpowder
Gunpowder is the first explosive to have been developed. Popularly listed as one of the "Four Great Inventions" of China, it was invented during the late Tang dynasty (9th century) while the earliest recorded chemical formula for gunpowder dates to the Song dynasty (11th century). Knowledge of gunpowder spread rapidly throughout Asia and Europe, possibly as a result of the Mongol conquests during the 13th century, with written formulas for it appearing in the Middle East between 1240 and 1280 in a treatise by Hasan al-Rammah, and in Europe by 1267 in the ''Opus Majus'' by Roger Bacon. It was employed in warfare to some effect from at least the 10th century in weapons such as fire arrows, bombs, and the fire lance before the appearance of the gun in the 13th century. While the fire lance was eventually supplanted by the gun, other gunpowder weapons such as rockets and fire arrows continued to see use in China, Korea, India, and eventually Europe. Bombs too never ceased to deve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parthenon
The Parthenon (; grc, Παρθενών, , ; ell, Παρθενώνας, , ) is a former temple on the Athenian Acropolis, Greece, that was dedicated to the goddess Athena during the fifth century BC. Its decorative sculptures are considered some of the high points of Greek art, an enduring symbol of Ancient Greece, democracy and Western civilization. The Parthenon was built in thanksgiving for the Hellenic victory over Persian invaders during the Greco-Persian Wars. Like most Greek temples, the Parthenon also served as the city treasury. Construction started in 447 BC when the Delian League was at the peak of its power. It was completed in 438; work on the decoration continued until 432. For a time, it served as the treasury of the Delian League, which later became the Athenian Empire. In the final decade of the 6th century AD, the Parthenon was converted into a Christian church dedicated to the Virgin Mary. After the Ottoman conquest in the mid-fifteenth century ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khufu Ship
The Khufu ship is an intact full-size solar barque from ancient Egypt. It was sealed into a pit at the foot of the Great Pyramid of pharaoh Khufu around 2500 BC, during the Fourth Dynasty of the ancient Egyptian Old Kingdom. Like other buried Ancient Egyptian ships, it was apparently part of the extensive grave goods intended for use in the afterlife. The Khufu ship is one of the oldest, largest and best-preserved vessels from antiquity. It is long and wide, and has been identified as the world's oldest intact ship, and described as "a masterpiece of woodcraft" that could sail today if put into a lake or a river. The ship was preserved in the Giza Solar boat museum, but was relocated to the Grand Egyptian Museum in August 2021. History Function The history and function of the ship is not precisely known. It is of the type known as a "solar barge", a ritual vessel believed by ancient Egyptians to carry the resurrected king across the heavens with the sun god Ra. However, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serapis
Serapis or Sarapis is a Graeco-Egyptian deity. The cult of Serapis was promoted during the third century BC on the orders of Greek Pharaoh Ptolemy I Soter of the Ptolemaic Kingdom in Egypt as a means to unify the Greeks and Egyptians in his realm. The ''cultus'' of Serapis was spread as a matter of deliberate policy by the Ptolemaic kings. Serapis continued to increase in popularity during the Roman Empire, often replacing Osiris as the consort of Isis in temples outside Egypt. Though Ptolemy I may have created the official cult of Serapis and endorsed him as a patron of the Ptolemaic dynasty and Alexandria, Serapis was a pre-existing syncretistic deity derived from the worship of the Egyptian Osiris and Apis and also gained attributes from other deities, such as chthonic powers linked to the Greek Hades and Demeter, and with benevolence derived from associations with Dionysus. Iconography Serapis was depicted as Greek in appearance but with Egyptian trappings, and combined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mycenae
Mycenae ( ; grc, Μυκῆναι or , ''Mykē̂nai'' or ''Mykḗnē'') is an archaeological site near Mykines in Argolis, north-eastern Peloponnese, Greece. It is located about south-west of Athens; north of Argos; and south of Corinth. The site is inland from the Saronic Gulf and built upon a hill rising above sea level. In the second millennium BC, Mycenae was one of the major centres of Greek civilization, a military stronghold which dominated much of southern Greece, Crete, the Cyclades and parts of southwest Anatolia. The period of Greek history from about 1600 BC to about 1100 BC is called Mycenaean in reference to Mycenae. At its peak in 1350 BC, the citadel and lower town had a population of 30,000 and an area of 32 hectares. The first correct identification of Mycenae in modern literature was during a survey conducted by Francesco Grimani, commissioned by the Provveditore Generale of the Kingdom of the Morea in 1700, who used Pausanias's description of the Lio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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