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114-700: Ben Sirach wrote his work in Hebrew, possibly in Alexandria in the Ptolemaic Kingdom c. 180–175 BCE, where he is thought to have established a school. While Ben Sira is sometimes claimed to be a contemporary of Simeon the Just , it is more likely that his contemporary was High Priest Simon II (219–199 BCE) and this is due to confusion with his father, Joshua. A medieval text, the Alphabet of Sirach ,

228-422: A Hippodamian grid plan . Following Alexander's death in 323 BC, his general Ptolemy Lagides took possession of Egypt and brought Alexander's body to Egypt with him. Ptolemy at first ruled from the old Egyptian capital of Memphis . In 322/321 BC he had Cleomenes executed. Finally, in 305 BC, Ptolemy declared himself Pharaoh as Ptolemy I Soter ("Savior") and moved his capital to Alexandria. Although Cleomenes

342-464: A Roman triumphal column , is one of the best-known ancient monuments still standing in Alexandria today. It is located on Alexandria's ancient acropolis —a modest hill located adjacent to the city's Arab cemetery —and was originally part of a temple colonnade. Including its pedestal , it is 30 m (99 ft) high; the shaft is of polished red granite, 2.7 m (8.9 ft) in diameter at

456-586: A hot steppe climate (Köppen climate classification: BSh ), virtually hot desert climate ( Köppen climate classification : BWh ). Like the rest of Egypt's northern coast , the prevailing north wind, blowing across the Mediterranean, gives the city a less severe climate than the desert hinterland. Rafah and Alexandria are the wettest places in Egypt; the other wettest places are Rosetta , Baltim , Kafr el-Dawwar , and Mersa Matruh . The city's climate

570-402: A Greek unit of length measuring approximately 180 m or 590 ft). The end of this abutted on the land at the head of the present Grand Square, where the "Moon Gate" rose. All that now lies between that point and the modern "Ras al-Tin" quarter is built on the silt which gradually widened and obliterated this mole. The Ras al-Tin quarter represents all that is left of the island of Pharos,

684-541: A Nile river delta, Alexandria is one of the most vulnerable cities to sea level rise in the entire world. According to some estimates, hundreds of thousands of people in its low-lying areas may already have to be relocated before 2030. The 2022 IPCC Sixth Assessment Report estimates that by 2050, Alexandria and 11 other major African cities ( Abidjan , Algiers , Cape Town , Casablanca , Dakar , Dar es Salaam , Durban , Lagos , Lomé , Luanda and Maputo ) would collectively sustain cumulative damages of US$ 65 billion for

798-662: A Ptolemaic colonnade and streets in the north-east of the city, but little else. Hogarth explored part of an immense brick structure under the mound of Kom El Deka , which may have been part of the Paneum, the Mausolea, or a Roman fortress. The making of the new foreshore led to the dredging up of remains of the Patriarchal Church; and the foundations of modern buildings are seldom laid without some objects of antiquity being discovered. The most famous mosque in Alexandria

912-527: A bishop decreed that Paganism must be eradicated. Beneath the acropolis itself are the subterranean remains of the Serapeum, where the mysteries of the god Serapis were enacted and whose carved wall niches are believed to have provided overflow storage space for the ancient Library. In more recent years, many ancient artifacts have been discovered from the surrounding sea, mostly pieces of old pottery. Alexandria's catacombs , known as Kom El Shoqafa , are

1026-481: A density 0.5539 times that of air (0.678 kg per standard cubic meter). In the early 1800s, natural gas became known as "natural" to distinguish it from the dominant gas fuel at the time, coal gas . Unlike coal gas, which is manufactured by heating coal, natural gas can be extracted from the ground in its native gaseous form. When the use of natural gas overtook the use of coal gas in English speaking countries in

1140-484: A major source of natural gas in the United States and Canada. Because of increased shale gas production the United States was in 2014 the number one natural gas producer in the world. The production of shale gas in the United States has been described as a "shale gas revolution" and as "one of the landmark events in the 21st century." Following the increased production in the United States, shale gas exploration

1254-464: A seawall, quays and a bridge. Near the beach side of the area, there are the remains of a tower built by Ptolemy II Philadelphus. The tower was an exact scale replica of the destroyed Alexandrine Pharos Lighthouse . Citadel of Qaitbay is a defensive fortress located on the Mediterranean sea coast. It was established in 1477 AD (882 AH ) by the mamluk Sultan Al-Ashraf Sayf al-Din Qa'it Bay . The Citadel

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1368-429: A short distance southwest of the pillar, consist of a multi-level labyrinth, reached via a large spiral staircase and featuring dozens of chambers adorned with sculpted pillars, statues, and other syncretic Romano-Egyptian religious symbols , burial niches, and sarcophagi , as well as a large Roman-style banquet room, where memorial meals were conducted by relatives of the deceased. The catacombs were long forgotten by

1482-415: A successful attempt to erect a 25-ton obelisk in 1999. This followed two experiments to erect smaller obelisks and two failed attempts to erect a 25-ton obelisk. "Pompey's Pillar" is a misnomer , as it has nothing to do with Pompey , having been erected in 293 for Diocletian , possibly in memory of the rebellion of Domitius Domitianus . The structure was plundered and demolished in the 4th century when

1596-542: A synthetic crude that can be further refined into finished products, while MTG can produce synthetic gasoline from natural gas. STG+ can produce drop-in gasoline, diesel, jet fuel and aromatic chemicals directly from natural gas via a single-loop process. In 2011, Royal Dutch Shell's 140,000 barrels (22,000 m ) per day F–T plant went into operation in Qatar . Natural gas can be "associated" (found in oil fields ), or "non-associated" (isolated in natural gas fields ), and

1710-1269: Is Abu al-Abbas al-Mursi Mosque in Bahary . Other notable mosques in the city include Ali ibn Abi Talib mosque in Somouha, Bilal mosque, al-Gamaa al-Bahari in Mandara, Hatem mosque in Somouha, Hoda el-Islam mosque in Sidi Bishr, al-Mowasah mosque in Hadara, Sharq al-Madina mosque in Miami, al-Shohadaa mosque in Mostafa Kamel, Al Qa'ed Ibrahim Mosque, Yehia mosque in Zizinia, Sidi Gaber mosque in Sidi Gaber, Sidi B esher mosque, Rokay el-Islam mosque in Elessway, Elsadaka Mosque in Sidibesher Qebly, Elshatbi mosque and Sultan mosque. Natural gas Natural gas (also called fossil gas, methane gas , or simply gas )

1824-493: Is a flammable gaseous fuel made by the destructive distillation of coal . It contains a variety of calorific gases including hydrogen , carbon monoxide , methane , and other volatile hydrocarbons , together with small quantities of non-calorific gases such as carbon dioxide and nitrogen , and was used in a similar way to natural gas. This is a historical technology and is not usually economically competitive with other sources of fuel gas today. Most town "gashouses" located in

1938-421: Is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane (95%) in addition to various smaller amounts of other higher alkanes . Traces of carbon dioxide , nitrogen , hydrogen sulfide , and helium are also usually present. Methane is colorless and odorless, and the second largest greenhouse gas contributor to global climate change after carbon dioxide. Because natural gas

2052-550: Is a popular tourist destination and an important industrial centre due to its natural gas and oil pipelines from Suez . The city extends about 40 km (25 mi) along the northern coast of Egypt and is the largest city on the Mediterranean, the second-largest in Egypt (after Cairo ), the fourth-largest city in the Arab world , the ninth-largest city in Africa , and the ninth-largest urban area in Africa . The city

2166-458: Is a schematic block flow diagram of a typical natural gas processing plant. It shows the various unit processes used to convert raw natural gas into sales gas pipelined to the end user markets. The block flow diagram also shows how processing of the raw natural gas yields byproduct sulfur, byproduct ethane, and natural gas liquids (NGL) propane, butanes and natural gasoline (denoted as pentanes +). As of mid-2020, natural gas production in

2280-399: Is also found in coal beds (as coalbed methane ). It sometimes contains a significant amount of ethane , propane , butane , and pentane —heavier hydrocarbons removed for commercial use prior to the methane being sold as a consumer fuel or chemical plant feedstock. Non-hydrocarbons such as carbon dioxide , nitrogen , helium (rarely), and hydrogen sulfide must also be removed before

2394-628: Is beginning in countries such as Poland, China, and South Africa. Chinese geologists have identified the Sichuan Basin as a promising target for shale gas drilling, because of the similarity of shales to those that have proven productive in the United States. Production from the Wei-201 well is between 10,000 and 20,000 m per day. In late 2020, China National Petroleum Corporation claimed daily production of 20 million cubic meters of gas from its Changning-Weiyuan demonstration zone. Town gas

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2508-480: Is built up') existed since the 13th century BC in the vicinity and eventually grew into the Egyptian quarter of the city. Just east of Alexandria (where Abu Qir Bay is now), there were in ancient times marshland and several islands. As early as the 7th century BC, there existed important port cities of Canopus and Heracleion . The latter was recently rediscovered underwater. Alexandria was founded by Alexander

2622-537: Is estimated to have 51,000 cubic kilometers (12,000 cu mi) of natural gas and 50 billion barrels (7.9 billion cubic meters) of natural gas condensates . Because natural gas is not a pure product, as the reservoir pressure drops when non-associated gas is extracted from a field under supercritical (pressure/temperature) conditions, the higher molecular weight components may partially condense upon isothermic depressurizing—an effect called retrograde condensation . The liquid thus formed may get trapped as

2736-694: Is heated and compressed deep underground. Methanogenic organisms produce methane from a variety of sources, principally carbon dioxide. During petroleum production, natural gas is sometimes flared rather than being collected and used. Before natural gas can be burned as a fuel or used in manufacturing processes, it almost always has to be processed to remove impurities such as water. The byproducts of this processing include ethane , propane , butanes , pentanes , and higher molecular weight hydrocarbons. Hydrogen sulfide (which may be converted into pure sulfur ), carbon dioxide , water vapor , and sometimes helium and nitrogen must also be removed. Natural gas

2850-596: Is in the Far West Nile delta area. It is a densely populated city; its core areas belie its large administrative area. Notes: 2020 CAPMAS projection based on 2017 revised census figures, may differ significantly from 2017 census preliminary tabulations. The 14 kisms were reported simply as Alexandria city by CAPMAS in 2006 but given explosive growth definitions, likely informal, may have changed or may be set to change. Same area with 12 kisms existed in 1996. Kisms are considered 'fully urbanised' Alexandria has

2964-545: Is influenced by the Mediterranean Sea , moderating its temperatures, causing variable rainy winters and moderately hot and slightly prolonged summers that, at times, can be very humid; January and February are the coolest months, with daily maximum temperatures typically ranging from 12 to 18 °C (54 to 64 °F) and minimum temperatures that could reach 5 °C (41  °F ). Alexandria experiences violent storms , rain and sometimes sleet and hail during

3078-600: Is located on the eastern side of the northern tip of Pharos Island at the mouth of the Eastern Harbour . It was erected on the exact site of the famous Lighthouse of Alexandria , which was one of the Seven Wonders of the Ancient World . It was built on an area of 17,550 square metres . Persistent efforts have been made to explore the antiquities of Alexandria. Encouragement and help have been given by

3192-403: Is natural gas produced from shale . Because shale's matrix permeability is too low to allow gas to flow in economical quantities, shale gas wells depend on fractures to allow the gas to flow. Early shale gas wells depended on natural fractures through which gas flowed; almost all shale gas wells today require fractures artificially created by hydraulic fracturing . Since 2000, shale gas has become

3306-408: Is odorless, odorizers such as mercaptan (which smells like rotten eggs ) are commonly added to it for safety so that leaks can be readily detected. Natural gas is a fossil fuel that is formed when layers of organic matter (primarily marine microorganisms) decompose under anaerobic conditions and are subjected to intense heat and pressure underground over millions of years. The energy that

3420-406: Is often stored underground [references about geological storage needed]inside depleted gas reservoirs from previous gas wells, salt domes , or in tanks as liquefied natural gas. The gas is injected in a time of low demand and extracted when demand picks up. Storage nearby end users helps to meet volatile demands, but such storage may not always be practicable. With 15 countries accounting for 84% of

3534-452: Is preparing to export natural gas. Floating liquefied natural gas (FLNG) is an innovative technology designed to enable the development of offshore gas resources that would otherwise remain untapped due to environmental or economic factors which currently make them impractical to develop via a land-based LNG operation. FLNG technology also provides a number of environmental and economic advantages: Many gas and oil companies are considering

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3648-548: Is primarily dependent on proximity to markets (pipelines), and regulatory restrictions. Natural gas can be indirectly exported through the absorption in other physical output. The expansion of shale gas production in the US has caused prices to drop relative to other countries. This has caused a boom in energy intensive manufacturing sector exports, whereby the average dollar unit of US manufacturing exports has almost tripled its energy content between 1996 and 2012. A "master gas system"

3762-429: Is primarily used in the northern hemisphere. North America and Europe are major consumers. Often well head gases require removal of various hydrocarbon molecules contained within the gas. Some of these gases include heptane , pentane , propane and other hydrocarbons with molecular weights above methane ( CH 4 ). The natural gas transmission lines extend to the natural gas processing plant or unit which removes

3876-716: Is sometimes informally referred to simply as "gas", especially when it is being compared to other energy sources, such as oil, coal or renewables. However, it is not to be confused with gasoline , which is also shortened in colloquial usage to "gas", especially in North America. Natural gas is measured in standard cubic meters or standard cubic feet . The density compared to air ranges from 0.58 (16.8 g/mole, 0.71 kg per standard cubic meter) to as high as 0.79 (22.9 g/mole, 0.97 kg per scm), but generally less than 0.64 (18.5 g/mole, 0.78 kg per scm). For comparison, pure methane (16.0425 g/mole) has

3990-598: Is the second largest city in Egypt and the largest city on the Mediterranean coast . It lies at the western edge of the Nile River delta . Founded in c.  331 BC by Alexander the Great , Alexandria grew rapidly and became a major centre of Hellenic civilisation , eventually replacing Memphis , in present-day Greater Cairo , as Egypt's capital. Called the "Bride of the Mediterranean" internationally, Alexandria

4104-604: Is traded on a "dry gas" basis and is required to be commercially free from objectionable odours, materials, and dust or other solid or liquid matter, waxes, gums and gum forming constituents, which might damage or adversely affect operation of equipment downstream of the custody transfer point. LNG carrier ships transport liquefied natural gas (LNG) across oceans, while tank trucks can carry LNG or compressed natural gas (CNG) over shorter distances. Sea transport using CNG carrier ships that are now under development may be competitive with LNG transport in specific conditions. Gas

4218-409: Is transported at high pressure, typically above 200 bars (20,000 kPa; 2,900 psi). Compressors and decompression equipment are less capital intensive and may be economical in smaller unit sizes than liquefaction/regasification plants. Natural gas trucks and carriers may transport natural gas directly to end-users, or to distribution points such as pipelines. In the past, the natural gas which

4332-416: Is turned into liquid at a liquefaction plant, and is returned to gas form at regasification plant at the terminal . Shipborne regasification equipment is also used. LNG is the preferred form for long distance, high volume transportation of natural gas, whereas pipeline is preferred for transport for distances up to 4,000 km (2,500 mi) over land and approximately half that distance offshore. CNG

4446-656: The Battle of Ridaniya in 1517, the city was conquered by the Ottoman Turks and remained under Ottoman rule until 1798. Alexandria lost much of its former importance to the Egyptian port city of Rosetta during the 9th to 18th centuries, and it only regained its former prominence with the construction of the Mahmoudiyah Canal in 1820. Alexandria figured prominently in the military operations of Napoleon 's expedition to Egypt in 1798. French troops stormed

4560-572: The Coptic Orthodox Church and the Greek Orthodox Church of Alexandria both lay claim to this ancient heritage. By 641, the city had already been largely plundered and lost its significance before re-emerging in the modern era. From the late 18th century, Alexandria became a major centre of the international shipping industry and one of the most important trading centres in the world, both because it profited from

4674-661: The Muslim conquest of Egypt in 641 AD, when a new capital was founded at Fustat (later absorbed into Cairo ). Alexandria was best known for the Lighthouse of Alexandria ( Pharos ), one of the Seven Wonders of the Ancient World ; its Great Library , the largest in the ancient world; and the Catacombs of Kom El Shoqafa , one of the Seven Wonders of the Middle Ages . Alexandria was the intellectual and cultural centre of

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4788-427: The supply chain can result in natural gas having a similar carbon footprint to other fossil fuels overall. Natural gas can be found in underground geological formations , often alongside other fossil fuels like coal and oil (petroleum). Most natural gas has been created through either biogenic or thermogenic processes. Thermogenic gas takes a much longer period of time to form and is created when organic matter

4902-464: The "moderate" climate change scenario RCP 4.5 and US$ 86.5 billion for the high-emission scenario RCP 8.5, while RCP 8.5 combined with the hypothetical impact from marine ice sheet instability at high levels of warming would involve up to US$ 137.5 billion in damages. Additional accounting for the "low-probability, high-damage events" may increase aggregate risks to US$ 187 billion for the "moderate" RCP4.5, US$ 206 billion for RCP8.5 and US$ 397 billion under

5016-618: The 10th century, had the reading "Shimʽon, son of Yeshuaʽ, son of Elʽazar ben Siraʼ"; and a similar reading occurs in the Hebrew manuscript B. Sirach is the Greek form of the family name Sira. It adds the letter Chi , an addition like that in Hakel-dama-ch in Acts 1 :19. According to the Greek version, though not according to the Syriac, the author traveled extensively (Sirach 34:12) and

5130-548: The 19th century, natural gas was primarily obtained as a by-product of producing oil . The small, light gas carbon chains came out of solution as the extracted fluids underwent pressure reduction from the reservoir to the surface, similar to uncapping a soft drink bottle where the carbon dioxide effervesces . The gas was often viewed as a by-product, a hazard, and a disposal problem in active oil fields. The large volumes produced could not be used until relatively expensive pipeline and storage facilities were constructed to deliver

5244-406: The 20th century, it was increasingly referred to as simply "gas." In order to highlight its role in exacerbating the climate crisis , however, many organizations have criticized the continued use of the word "natural" in referring to the gas. These advocates prefer the term "fossil gas" or "methane gas" as better conveying to the public its climate threat. A 2020 study of Americans' perceptions of

5358-534: The 4th century AD. This underwater section, containing many of the most interesting sections of the Hellenistic city, including the palace quarter, was explored in 1992 and is still being extensively investigated by the French underwater archaeologist Franck Goddio and his team . It raised a noted head of Caesarion . These are being opened up to tourists, to some controversy. The spaces that are most open are

5472-523: The Arabs under the general 'Amr ibn al-'As invaded it during the Muslim conquest of Egypt , after a siege that lasted 14 months. The first Arab governor of Egypt recorded to have visited Alexandria was Utba ibn Abi Sufyan , who strengthened the Arab presence and built a governor's palace in the city in 664–665. In reference to Alexandria, Ibn Battuta speaks of a number of Muslim saints that resided in

5586-593: The Great in April 331 BC as Ἀλεξάνδρεια ( Alexandreia ), as one of his many city foundations . After he captured the Egyptian Satrapy from the Persians , Alexander wanted to build a large Greek city on Egypt's coast that would bear his name. He chose the site of Alexandria, envisioning the building of a causeway to the nearby island of Pharos that would generate two great natural harbours. Alexandria

5700-515: The Great Harbour. The names of a few other public buildings on the mainland are known, but there is little information as to their actual position. None, however, are as famous as the building that stood on the eastern point of Pharos island. There, The Great Lighthouse , one of the Seven Wonders of the World , reputed to be 138 m (453 ft) high, was situated. The first Ptolemy began

5814-519: The Rosetta Gate, but remnants of streets and canals were exposed in 1899 by German excavators outside the east fortifications, which lie well within the area of the ancient city. Alexandria consisted originally of little more than the island of Pharos, which was joined to the mainland by a 1,260 m-long (4,130 ft) mole and called the Heptastadion ("seven stadia"—a stadium was

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5928-592: The Serapeum. Nearby, immense catacombs and columbaria have been opened which may have been appendages of the temple. These contain one very remarkable vault with curious painted reliefs, now artificially lit and open to visitors. The objects found in these researches are in the museum, the most notable being a great basalt bull, probably once an object of cult in the Serapeum. Other catacombs and tombs have been opened in Kom El Shoqafa (Roman) and Ras El Tin (painted). The German excavation team found remains of

6042-726: The Society for the Promotion of Hellenic Studies in 1895; and a German expedition worked for two years (1898–1899). But two difficulties face the would-be excavator in Alexandria: lack of space for excavation and the underwater location of some areas of interest. Since the great and growing modern city stands immediately over the ancient one, it is almost impossible to find any considerable space in which to dig, except at enormous cost. Cleopatra VII 's royal quarters were inundated by earthquakes and tsunami, leading to gradual subsidence in

6156-665: The Sultan of Egypt at the time, al-Nasir Muhammad . Ibn Battuta also visited the Pharos lighthouse on two occasions: in 1326 he found it to be partly in ruins and in 1349 it had deteriorated to the point that it was no longer possible to enter. During the Middle Ages , the Mamluk Sultanate provided amenities for European merchants to stay in the port cities of Alexandria and Damietta , so hotels were built and placed at

6270-432: The US had peaked three times, with current levels exceeding both previous peaks. It reached 24.1 trillion cubic feet per year in 1973, followed by a decline, and reached 24.5 trillion cubic feet in 2001. After a brief drop, withdrawals increased nearly every year since 2006 (owing to the shale gas boom ), with 2017 production at 33.4 trillion cubic feet and 2019 production at 40.7 trillion cubic feet. After

6384-427: The US, over one-third of households (>40 million homes) cook with gas. Natural gas dispensed in a residential setting can generate temperatures in excess of 1,100 °C (2,000 °F) making it a powerful domestic cooking and heating fuel. Stanford scientists estimated that gas stoves emit 0.8–1.3% of the gas they use as unburned methane and that total U.S. stove emissions are 28.1 gigagrams of methane. In much of

6498-523: The United States begins with localized use. In the seventeenth century, French missionaries witnessed the American Indians setting fire to natural gas seeps around lake Erie, and scattered observations of these seeps were made by European-descended settlers throughout the eastern seaboard through the 1700s. In 1821, William Hart dug the first commercial natural gas well in the United States at Fredonia, New York , United States, which led in 1858 to

6612-589: The ancient Mediterranean for much of the Hellenistic age and late antiquity . It was at one time the largest city in the ancient world before being eventually overtaken by Rome . The city was a major centre of early Christianity and was the centre of the Patriarchate of Alexandria , which was one of the major centres of Christianity in the Eastern Roman Empire . In the modern world,

6726-513: The base, tapering to 2.4 m (7.9 ft) at the top. The shaft is 88 ft (27 m) high and made out of a single piece of granite. Its volume is 132 m (4,662 cu ft) and weight approximately 396 tons. Pompey's Pillar may have been erected using the same methods that were used to erect the ancient obelisks . The Romans had cranes but they were not strong enough to lift something this heavy. Roger Hopkins and Mark Lehrner conducted several obelisk erecting experiments including

6840-702: The bottoms of the gashouse ovens was often used for roofing and other waterproofing purposes, and when mixed with sand and gravel was used for paving streets. Huge quantities of natural gas (primarily methane) exist in the form of clathrates under sediment on offshore continental shelves and on land in arctic regions that experience permafrost , such as those in Siberia . Hydrates require a combination of high pressure and low temperature to form. In 2013, Japan Oil, Gas and Metals National Corporation (JOGMEC) announced that they had recovered commercially relevant quantities of natural gas from methane hydrate. The image below

6954-462: The centre of the city, close to the point where the Sema (or Soma) of Alexander (his Mausoleum ) rose. This point is very near the present mosque of Nebi Daniel ; the line of the great East–West "Canopic" street is also present in modern-day Alexandria, having only slightly diverged from the line of the modern Boulevard de Rosette (now Sharae Fouad). Traces of its pavement and canal have been found near

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7068-516: The citizens until they were discovered by accident in 1900. The most extensive ancient excavation currently being conducted in Alexandria is known as Kom El Deka . It has revealed the ancient city's well-preserved theater, and the remains of its Roman-era baths . The temple was built in the Ptolemy era and dedicated to Osiris, which finished the construction of Alexandria. It is located in Abusir,

7182-570: The city on 2 July 1798, and it remained in their hands until the arrival of a British expedition in 1801. The British won a considerable victory over the French at the Battle of Alexandria on 21 March 1801, following which they besieged the city , which fell to them on 2 September 1801. Muhammad Ali , the Ottoman governor of Egypt, began rebuilding and redevelopment around 1810 and, by 1850, Alexandria had returned to something akin to its former glory. Egypt turned to Europe in their effort to modernise

7296-522: The city. One such saint was Imam Borhan Oddin El Aaraj, who was said to perform miracles. Another notable figure was Yaqut al-'Arshi, a disciple of Abu Abbas El Mursi . Ibn Battuta also writes about Abu 'Abdallah al-Murshidi, a saint that lived in the Minyat of Ibn Murshed. Although al-Murshidi lived in seclusion, Ibn Battuta writes that he was regularly visited by crowds, high state officials, and even by

7410-471: The climate of Alexandria in the year 2050 would most closely resemble the current climate of Gaza City . The annual temperature would increase by 2.8 °C (5.0 °F), and the temperature of the warmest and the coldest month by 2.9 °C (5.2 °F) and 3.1 °C (5.6 °F). According to Climate Action Tracker , the current warming trajectory appears consistent with 2.7 °C (4.9 °F), which closely matches RCP 4.5. Due to its location on

7524-493: The cooler months; these events, combined with a poor drainage system, have been responsible for occasional flooding in the city in the past though they rarely occur anymore. July and August are the hottest and driest months of the year, with an average daily maximum temperature of 30 °C (86  °F ). The average annual rainfall is around 211 mm (8.3 in) but has been as high as 417 mm (16.4 in) Port Said , Kosseir , Baltim , Damietta and Alexandria have

7638-481: The country. Greeks, followed by other Europeans and others, began moving to the city. In the early 20th century, the city became a home for novelists and poets. In July 1882, the city came under bombardment from British naval forces and was occupied. In July 1954, the city was a target of an Israeli bombing campaign that later became known as the Lavon Affair . On 26 October 1954, Alexandria's Mansheya Square

7752-595: The course of Roman rule in Egypt , the city's name was Latinised as Alexandrēa ad Aegyptum . After the capture of Alexandria by the Rashiduns in AD 641, the name was Arabicised : initial Al- was re-analysed into the definite article ; metathesis occurred on x , from [ks] to [sk] ; and the suffix -eia was assimilated into the feminine adjectival suffix -iyya ( ـِيَّة ). Radiocarbon dating of seashell fragments and lead contamination show human activity at

7866-654: The decayed organisms originally obtained from the sun via photosynthesis is stored as chemical energy within the molecules of methane and other hydrocarbons. Natural gas can be burned for heating, cooking, and electricity generation . Consisting mainly of methane, natural gas is rarely used as a chemical feedstock . The extraction and consumption of natural gas is a major industry. When burned for heat or electricity , natural gas emits fewer toxic air pollutants, less carbon dioxide, and almost no particulate matter compared to other fossil and biomass fuels. However, gas venting and unintended fugitive emissions throughout

7980-454: The distinction of its population's three largest ethnicities: Greek, Egyptian and Jewish. By the time of Augustus , the city grid encompassed an area of 10 km (3.9 sq mi), and the total population during the Roman principate was around 500,000–600,000, which would wax and wane in the course of the next four centuries under Roman rule. According to Philo of Alexandria , in

8094-446: The eastern US in the late 19th and early 20th centuries were simple by-product coke ovens that heated bituminous coal in air-tight chambers. The gas driven off from the coal was collected and distributed through networks of pipes to residences and other buildings where it was used for cooking and lighting. (Gas heating did not come into widespread use until the last half of the 20th century.) The coal tar (or asphalt ) that collected in

8208-524: The easy overland connection between the Mediterranean and Red Seas and the lucrative trade in Egyptian cotton . Alexandria was located on the earlier Egyptian settlement, which was called Rhacotis ( Ancient Greek : Ῥακῶτις , romanized :  Rhakôtis ), the Hellenised form of Egyptian r-ꜥ-qd(y)t . As one of many settlements founded by Alexander the Great, the city he founded on Rhacotis

8322-446: The economic and environmental benefits of floating liquefied natural gas (FLNG). There are currently projects underway to construct five FLNG facilities. Petronas is close to completion on their FLNG-1 at Daewoo Shipbuilding and Marine Engineering and are underway on their FLNG-2 project at Samsung Heavy Industries . Shell Prelude is due to start production 2017. The Browse LNG project will commence FEED in 2019. Natural gas

8436-497: The formation of the Fredonia Gas Light Company . Further such ventures followed near wells in other states, until technological innovations allowed the growth of major long distance pipelines from the 1920s onward. By 2009, 66,000 km (16,000 cu mi) (or 8%) had been used out of the total 850,000 km (200,000 cu mi) of estimated remaining recoverable reserves of natural gas. In

8550-461: The fuel found that, across political identifications, the term "methane gas" led to better estimates of its harms and risks. Natural gas can come out of the ground and cause a long-burning fire. In ancient Greece , the gas flames at Mount Chimaera contributed to the legend of the fire-breathing creature Chimera . In ancient China , gas resulting from the drilling for brines was first used by about 400 BC. The Chinese transported gas seeping from

8664-435: The gas needs to be cooled down and compressed, as the friction in the pipeline causes the gas to heat up. Many existing pipelines in the US are close to reaching their capacity, prompting some politicians representing northern states to speak of potential shortages. The large trade cost implies that natural gas markets are globally much less integrated, causing significant price differences across countries. In Western Europe ,

8778-517: The gas pipeline network is already dense. New pipelines are planned or under construction between Western Europe and the Near East or Northern Africa . Whenever gas is bought or sold at custody transfer points, rules and agreements are made regarding the gas quality. These may include the maximum allowable concentration of CO 2 , H 2 S and H 2 O . Usually sales quality gas that has been treated to remove contamination

8892-896: The gas to consumer markets. Until the early part of the 20th century, most natural gas associated with oil was either simply released or burned off at oil fields. Gas venting and production flaring are still practised in modern times, but efforts are ongoing around the world to retire them, and to replace them with other commercially viable and useful alternatives. In addition to transporting gas via pipelines for use in power generation, other end uses for natural gas include export as liquefied natural gas (LNG) or conversion of natural gas into other liquid products via gas to liquids (GTL) technologies. GTL technologies can convert natural gas into liquids products such as gasoline, diesel or jet fuel. A variety of GTL technologies have been developed, including Fischer–Tropsch (F–T), methanol to gasoline (MTG) and syngas to gasoline plus (STG+). F–T produces

9006-526: The ground in crude pipelines of bamboo to where it was used to boil salt water to extract the salt in the Ziliujing District of Sichuan . Natural gas was not widely used before the development of long distance pipelines in the early twentieth century. Before that, most use was near to the source of the well, and the predominant gas for fuel and lighting during the industrial revolution was manufactured coal gas. The history of natural gas in

9120-488: The high-end ice sheet instability scenario. In every single estimate, Alexandria alone bears around half of these costs. Since sea level rise would continue for about 10,000 years under every scenario of climate change, future costs of sea level rise would only increase, especially without adaptation measures. Greek Alexandria was divided into three regions: Two main streets, lined with colonnades and said to have been each about 60 m (200 ft) wide, intersected in

9234-442: The higher-molecular weight hydrocarbons to produce natural gas with energy content between 35–39 megajoules per cubic metre (950–1,050 British thermal units per cubic foot). The processed natural gas may then be used for residential, commercial and industrial uses. Natural gas flowing in the distribution lines is called mid-stream natural gas and is often used to power engines which rotate compressors. These compressors are required in

9348-479: The largest cities ever built before the Industrial Revolution and the largest pre-industrial city that was not an imperial capital. Due to the constant presence of war in Alexandria in ancient times, very little of the ancient city has survived into the present day. Much of the royal and civic quarters sank beneath the harbour and the rest has been built over in modern times. " Pompey's Pillar ",

9462-549: The largest city in the world and, for some centuries more, was second only to Rome. It became Egypt's main Greek city, with Greek people from diverse backgrounds. The Septuagint , a Greek version of the Tanakh , was produced there. The early Ptolemies kept it in order and fostered the development of its museum into the leading Hellenistic centre of learning ( Library of Alexandria , which faced destruction during Caesar 's siege of Alexandria in 47 BC), but were careful to maintain

9576-612: The largest proven gas reserves. Sources that consider that Russia has by far the largest proven reserves include the US Central Intelligence Agency (47,600 km ) and Energy Information Administration (47,800 km ), as well as the Organization of Petroleum Exporting Countries (48,700 km ). Contrarily, BP credits Russia with only 32,900 km , which would place it in second, slightly behind Iran (33,100 to 33,800 km , depending on

9690-482: The least temperature variation in Egypt. The highest recorded temperature was 45 °C (113 °F) on 30 May 1961, and the coldest recorded temperature was 0 °C (32 °F) on 31 January 1994. A 2019 paper published in PLOS One estimated that under Representative Concentration Pathway 4.5 , a "moderate" scenario of climate change where global warming reaches ~2.5–3 °C (4.5–5.4 °F) by 2100,

9804-478: The local Archaeological Society and by many individuals. Excavations were performed in the city by Greeks seeking the tomb of Alexander the Great without success. The past and present directors of the museum have been enabled from time to time to carry out systematic excavations whenever opportunity is offered; D. G. Hogarth made tentative researches on behalf of the Egypt Exploration Fund and

9918-516: The location during the period of the Old Kingdom (27th–21st centuries BC) and again in the period 1000–800 BC, followed by the absence of activity after that. From ancient sources it is known there existed a trading post at this location during the time of Rameses the Great for trade with Crete , but it had long been lost by the time of Alexander's arrival. A small Egyptian fishing village named Rhakotis ( Egyptian : rꜥ-qdy.t , 'That which

10032-399: The low grounds to northeast and southwest, where it is practically impossible to get below the Roman strata . The most important results were those achieved by Dr. G. Botti, late director of the museum, in the neighbourhood of "Pompey's Pillar", where there is a good deal of open ground. Here, substructures of a large building or group of buildings have been exposed, which are perhaps part of

10146-526: The merchants' disposal so that they could live according to the pattern they were accustomed to in their country. Alexandria lost much of its importance in international trade after Portuguese navigators discovered a new sea route to India in the late 15th century. This reduced the amount of goods that needed to be transported through the Alexandrian port, as well as the Mamluks' political power. After

10260-433: The natural gas can be transported. Natural gas extracted from oil wells is called casinghead gas (whether or not truly produced up the annulus and through a casinghead outlet) or associated gas. The natural gas industry is extracting an increasing quantity of gas from challenging, unconventional resource types : sour gas , tight gas , shale gas , and coalbed methane . There is some disagreement on which country has

10374-441: The pores of the gas reservoir get depleted. One method to deal with this problem is to re-inject dried gas free of condensate to maintain the underground pressure and to allow re-evaporation and extraction of condensates. More frequently, the liquid condenses at the surface, and one of the tasks of the gas plant is to collect this condensate. The resulting liquid is called natural gas liquid (NGL) and has commercial value. Shale gas

10488-414: The project, and the second Ptolemy ( Ptolemy II Philadelphus ) completed it, at a total cost of 800  talents . It took 12 years to complete and served as a prototype for all later lighthouses in the world. The light was produced by a furnace at the top and the tower was built mostly with solid blocks of limestone. The Pharos lighthouse was destroyed by an earthquake in the 14th century, making it

10602-483: The prologue to the Greek text to be the translator of Sirach into Greek. He probably undertook the translation many years after the original was written. The grandson states that he came to Egypt in the thirty-eighth year of the reign of Euergetes. Ptolemy VIII Physcon must be intended; he ascended the throne in 170 BCE, together with his brother Philometor, but he soon became sole ruler of Cyrene , and from 146 to 117 BCE, held sway over all Egypt. He dated his reign from

10716-503: The second longest surviving ancient wonder, after the Great Pyramid of Giza . A temple of Hephaestus also stood on Pharos at the head of the mole. In the 1st century, the population of Alexandria contained over 180,000 adult male citizens, according to a census dated from 32 AD, in addition to a large number of freedmen, women, children and slaves. Estimates of the total population range from 216,000 to 500,000, making it one of

10830-462: The site of the actual lighthouse having been weathered away by the sea. On the east of the mole was the Great Harbour, now an open bay; on the west lay the port of Eunostos, with its inner basin Kibotos, now vastly enlarged to form the modern harbour. In Strabo 's time (latter half of the 1st century BC), the principal buildings were as follows, enumerated as they were to be seen from a ship entering

10944-550: The source). It is estimated that there are about 900,000 km of "unconventional" gas such as shale gas, of which 180,000 km may be recoverable. In turn, many studies from MIT , Black & Veatch and the US Department of Energy predict that natural gas will account for a larger portion of electricity generation and heat in the future. The world's largest gas field is the offshore South Pars / North Dome Gas-Condensate field , shared between Iran and Qatar. It

11058-654: The third peak in December 2019, extraction continued to fall from March onward due to decreased demand caused by the COVID-19 pandemic in the US . The 2021 global energy crisis was driven by a global surge in demand as the world quit the economic recession caused by COVID-19, particularly due to strong energy demand in Asia. Because of its low density, it is not easy to store natural gas or to transport it by vehicle. Natural gas pipelines are impractical across oceans, since

11172-412: The transmission line to pressurize and repressurize the mid-stream natural gas as the gas travels. Typically, natural gas powered engines require 35–39 MJ/m (950–1,050 BTU/cu ft) natural gas to operate at the rotational name plate specifications. Several methods are used to remove these higher molecular weighted gases for use by the natural gas engine. A few technologies are as follows: In

11286-472: The western suburb of Alexandria in Borg el Arab city. Only the outer wall and the pylons remain from the temple. There is evidence to prove that sacred animals were worshiped there. Archaeologists found an animal necropolis near the temple. Remains of a Christian church show that the temple was used as a church in later centuries. Also found in the same area are remains of public baths built by the emperor Justinian,

11400-502: The worldwide extraction, access to natural gas has become an important issue in international politics, and countries vie for control of pipelines. In the first decade of the 21st century, Gazprom , the state-owned energy company in Russia, engaged in disputes with Ukraine and Belarus over the price of natural gas, which have created concerns that gas deliveries to parts of Europe could be cut off for political reasons. The United States

11514-582: The year 38 AD, disturbances erupted between Jews and Greek citizens of Alexandria during a visit paid by King Agrippa I to Alexandria, principally over the respect paid by the Herodian nation to the Roman emperor , which quickly escalated to open affronts and violence between the two ethnic groups and the desecration of Alexandrian synagogues. This event has been called the Alexandrian pogroms . The violence

11628-465: The year in which he received the crown (i.e., from 170 BCE). The translator must therefore have gone to Egypt in 132 BCE. The prologue is generally considered the earliest witness to a canon of the books of the prophets. Alexandria Alexandria ( / ˌ æ l ɪ ɡ ˈ z æ n d r i ə , - ˈ z ɑː n -/ AL -ig- ZA(H)N -dree-ə ; Arabic : الإسكندرية ; ‹See Tfd› Greek : Ἀλεξάνδρεια , Coptic : Ⲣⲁⲕⲟϯ - Rakoti or ⲁⲗⲉⲝⲁⲛⲇⲣⲓⲁ)

11742-469: Was called Alexándreia hḗ kat' Aígypton ( Ἀλεξάνδρεια ἡ κατ' Αἴγυπτον ), which some sources translated as "Alexandria by Egypt", as the city was, at that time, in the periphery of Egypt proper (the area beside the Nile ). Some of the Alexandrian and Greek populaces, e.g., Hypsicles , also referred to the city as Alexándreia hḗ prós Aígypton ( Ἀλεξάνδρεια ἡ πρός Αἴγυπτον , "Alexandria near Egypt"). In

11856-607: Was devastated by a tsunami ( 365 Crete earthquake ), an event annually commemorated years later as a "day of horror". In 619, Alexandria fell to the Sassanid Persians . The city was mostly uninjured by the conquest and a new palace called Tarawus was erected in the eastern part of the city, later known as Qasr Faris, "fort of the Persians". Although the Byzantine emperor Heraclius recovered it in 629, in 641

11970-533: Was exposed in the presence of a certain king, supposed to be one of the Ptolemaic dynasty , are mentioned only in the Greek version, being ignored both in the Syriac and in the Hebrew text. The only fact known with certainty, drawn from the text itself, is that Ben Sira was a scholar, and a scribe thoroughly versed in the Law, and especially in the "Books of Wisdom". Very little is known about his grandson, who claims in

12084-666: Was falsely attributed to him. In the Koine Greek text of the Book of Sirach , the author's father is called "Jesus the son of Sirach of Jerusalem". Jesus is the Anglicized form of the Greek name Ἰησοῦς , the equivalent of the Aramaic form borrowed from late Biblical Hebrew Yeshua , derived from the older Masoretic Hebrew Yehoshua . The copy owned by Saadia Gaon , the prominent rabbi , Jewish philosopher, and exegete of

12198-477: Was founded originally in the vicinity of an Egyptian settlement named Rhacotis (that became the Egyptian quarter of the city). Alexandria grew rapidly, becoming a major centre of Hellenic civilisation and replacing Memphis as Egypt's capital during the reign of the Ptolemaic pharaohs who succeeded Alexander. It retained this status for almost a millennium, through the period of Roman and Eastern Roman rule until

12312-459: Was frequently in danger of death (34:13). Collins comments that unfortunately "he gives no details of his travels". Corley surmises from these travels that Ben Sira may have been a diplomat or counsellor. In the hymn of chapter 51, he speaks of the perils of all sorts from which God had delivered him, although this is probably only a poetic theme in imitation of the Psalms . The calumnies to which he

12426-409: Was intended to supersede the older Greek colony of Naucratis as a Hellenistic centre in Egypt and to be the link between Greece and the rich Nile valley. A few months after the foundation, Alexander left Egypt and never returned to the city during his life. After Alexander's departure, his viceroy Cleomenes continued the expansion. The architect Dinocrates of Rhodes designed the city, using

12540-494: Was invented in Saudi Arabia in the late 1970s, ending any necessity for flaring. Satellite and nearby infra-red camera observations, however, shows that flaring and venting are still happening in some countries. Natural gas is used to generate electricity and heat for desalination . Similarly, some landfills that also discharge methane gases have been set up to capture the methane and generate electricity. Natural gas

12654-513: Was mainly in charge of overseeing Alexandria's early development, the Heptastadion and the mainland quarters seem to have been primarily Ptolemaic work. Inheriting the trade of ruined Tyre and becoming the centre of the new commerce between Europe and the Arabian and Indian East, the city grew in less than a generation to be larger than Carthage . In one century, Alexandria had become

12768-570: Was quelled after Caligula intervened and had the Roman governor, Flaccus, removed from the city. In 115 AD, large parts of Alexandria were destroyed during the Diaspora revolt , which gave Hadrian and his architect, Decriannus , an opportunity to rebuild it. In 215 AD, the emperor Caracalla visited the city and, because of some insulting satires that the inhabitants had directed at him, abruptly commanded his troops to put to death all youths capable of bearing arms. On 21 July 365 AD, Alexandria

12882-567: Was recovered in the course of recovering petroleum could not be profitably sold, and was simply burned at the oil field in a process known as flaring . Flaring is now illegal in many countries. Additionally, higher demand in the last 20–30 years has made production of gas associated with oil economically viable. As a further option, the gas is now sometimes re- injected into the formation for enhanced oil recovery by pressure maintenance as well as miscible or immiscible flooding. Conservation, re-injection, or flaring of natural gas associated with oil

12996-401: Was the site of a failed assassination attempt on Gamal Abdel Nasser . Europeans began leaving Alexandria following the 1956 Suez Crisis that led to an outburst of Arab nationalism . The nationalisation of property by Nasser, which reached its highest point in 1961, drove out nearly all the rest. Alexandria is located in the country of Egypt, on the southern coast of the Mediterranean. It

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