Bacteria
In most bacteria, a cell wall is present on the outside of the cell membrane. The cell membrane and cell wall comprise the cell envelope. A common bacterial cell wall material is peptidoglycan (called "murein" in older sources), which is made from polysaccharide chains cross-linked by peptides containing D-amino acids. Bacterial cell walls are different from the cell walls of plants and fungi, which are made of cellulose and chitin, respectively. The cell wall of bacteria is also distinct from that of Archaea, which do not contain peptidoglycan. The cell wall is essential to the survival of many bacteria, and the antibiotic penicillin is able to kill bacteria by inhibiting a step in the synthesis of peptidoglycan.
History of Jerusalem
In 66 CE, the Jewish population rebelled against the Roman Empire in what is now known as the First Jewish -- Roman War or Great Revolt. Roman legions under future emperor Titus reconquered and subsequently destroyed much of Jerusalem in 70 CE. Also the Second Temple was burnt and all that remained was the great external (retaining) walls supporting the esplanade on which the Temple had stood, a portion of which has become known as the Western Wall. Titus' victory is commemorated by the Arch of Titus in Rome. Agrippa II died c. 94 CE, which brought the Herodian dynasty to an end almost thirty years after the destruction of the Second Temple. After the end of this revolt, Jews continued to live in Jerusalem in significant numbers, and were allowed to practice their religion, only if they paid the Jewish Tax.
Alloy
With the introduction of the blast furnace to Europe in the Middle Ages, pig iron was able to be produced in much higher volumes than wrought iron. Because pig iron could be melted, people began to develop processes of reducing the carbon in the liquid pig iron to create steel. Puddling was introduced during the 1700s, where molten pig iron was stirred while exposed to the air, to remove the carbon by oxidation. In 1858, Sir Henry Bessemer developed a process of steel-making by blowing hot air through liquid pig iron to reduce the carbon content. The Bessemer process was able to produce the first large scale manufacture of steel. Once the Bessemer process began to gain widespread use, other alloys of steel began to follow. Mangalloy, an alloy of steel and manganese exhibiting extreme hardness and toughness, was one of the first alloy steels, and was created by Robert Hadfield in 1882.
Mond process
The Mond process, sometimes known as the carbonyl process, is a technique created by Ludwig Mond in 1890, to extract and purify nickel. The process was used commercially before the end of the 19th century. This process converts nickel oxides into pure nickel.
Circadian rhythm
The earliest recorded account of a circadian process dates from the 4th century B.C.E., when Androsthenes, a ship captain serving under Alexander the Great, described diurnal leaf movements of the tamarind tree. The observation of a circadian or diurnal process in humans is mentioned in Chinese medical texts dated to around the 13th century, including the Noon and Midnight Manual and the Mnemonic Rhyme to Aid in the Selection of Acu-points According to the Diurnal Cycle, the Day of the Month and the Season of the Year.
John Augustus Just
Dr. John Augustus Just (January 9, 1854 – September 13, 1908) was a German-born chemist and inventor. He is best known for his investigative work into recovery of precious metals from their ores and for completing the process for evaporating milk. For his scientific achievements, he was awarded a medal by the committee celebrating Berthelot's 50th anniversary.
Lithium
As of 2015, most of the world's lithium production is in South America, where lithium - containing brine is extracted from underground pools and concentrated by solar evaporation. The standard extraction technique is to evaporate water from brine. Each batch takes from 18 to 24 months.
Solar energy
Solar concentrating technologies such as parabolic dish, trough and Scheffler reflectors can provide process heat for commercial and industrial applications. The first commercial system was the Solar Total Energy Project (STEP) in Shenandoah, Georgia, USA where a field of 114 parabolic dishes provided 50% of the process heating, air conditioning and electrical requirements for a clothing factory. This grid-connected cogeneration system provided 400 kW of electricity plus thermal energy in the form of 401 kW steam and 468 kW chilled water, and had a one-hour peak load thermal storage. Evaporation ponds are shallow pools that concentrate dissolved solids through evaporation. The use of evaporation ponds to obtain salt from sea water is one of the oldest applications of solar energy. Modern uses include concentrating brine solutions used in leach mining and removing dissolved solids from waste streams. Clothes lines, clotheshorses, and clothes racks dry clothes through evaporation by wind and sunlight without consuming electricity or gas. In some states of the United States legislation protects the "right to dry" clothes. Unglazed transpired collectors (UTC) are perforated sun-facing walls used for preheating ventilation air. UTCs can raise the incoming air temperature up to 22 °C (40 °F) and deliver outlet temperatures of 45–60 °C (113–140 °F). The short payback period of transpired collectors (3 to 12 years) makes them a more cost-effective alternative than glazed collection systems. As of 2003, over 80 systems with a combined collector area of 35,000 square metres (380,000 sq ft) had been installed worldwide, including an 860 m2 (9,300 sq ft) collector in Costa Rica used for drying coffee beans and a 1,300 m2 (14,000 sq ft) collector in Coimbatore, India, used for drying marigolds.
Siege of Jerusalem (70 CE)
Overlooking the Temple compound, the fortress provided a perfect point from which to attack the Temple itself. Battering rams made little progress, but the fighting itself eventually set the walls on fire; a Roman soldier threw a burning stick onto one of the Temple's walls. Destroying the Temple was not among Titus' goals, possibly due in large part to the massive expansions done by Herod the Great mere decades earlier. Titus had wanted to seize it and transform it into a temple dedicated to the Roman Emperor and the Roman pantheon. The fire spread quickly and was soon out of control. The Temple was captured and destroyed on 9 / 10 Tisha B'Av, at the end of August, and the flames spread into the residential sections of the city. Josephus described the scene:
Great Wall of China
The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally built along an east - to - west line across the historical northern borders of China to protect the Chinese states and empires against the raids and invasions of the various nomadic groups of the Eurasian Steppe. Several walls were being built as early as the 7th century BC; these, later joined together and made bigger and stronger, are collectively referred to as the Great Wall. Especially famous is the wall built in 220 -- 206 BC by Qin Shi Huang, the first Emperor of China. Little of that wall remains. The Great Wall has been rebuilt, maintained, and enhanced over various dynasties; the majority of the existing wall is from the Ming Dynasty (1368 -- 1644).
Great Wall of China
Great Wall of China 萬里長城 The Great Wall of China at Jinshanling Map of all the wall constructions General information Type Fortification Country China Coordinates 40 ° 41 ′ N 117 ° 14 ′ E ﻿ / ﻿ 40.68 ° N 117.23 ° E ﻿ / 40.68; 117.23 Coordinates: 40 ° 41 ′ N 117 ° 14 ′ E ﻿ / ﻿ 40.68 ° N 117.23 ° E ﻿ / 40.68; 117.23 Technical details Size 21,196 km (13,171 mi) UNESCO World Heritage Site Criteria Cultural: (i), (ii), (iii), (iv), (vi) Reference 438 Inscription 1987 (11th Session) (edit on Wikidata)
Lath and plaster
Lath and plaster is a building process used to finish mainly interior walls and ceilings in Canada and the United States until the late 1950s. After the 1950s, drywall began to replace the lath and plaster process in the United States.
Constitution of Texas
Article 15 describes the process of impeachment and lists grounds on which to impeach judges. The House of Representatives is granted the power of impeachment.
Great Wall of China
The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally built along an east - to - west line across the historical northern borders of China to protect the Chinese states and empires against the raids and invasions of the various nomadic groups of the Eurasian Steppe with an eye to expansion. Several walls were being built as early as the 7th century BC; these, later joined together and made bigger and stronger, are collectively referred to as the Great Wall. Especially famous is the wall built in 220 -- 206 BC by Qin Shi Huang, the first Emperor of China. Little of that wall remains. The Great Wall has been rebuilt, maintained, and enhanced over various dynasties; the majority of the existing wall is from the Ming Dynasty (1368 -- 1644).
Wall Street Crash of 1929
The Wall Street Crash of 1929, also known as Black Tuesday (October 29), the Great Crash, or the Stock Market Crash of 1929, began on October 24, 1929 (``Black Thursday ''), and was the most devastating stock market crash in the history of the United States (acting as the most significant predicting indicator of the Great Depression), when taking into consideration the full extent and duration of its after effects. The crash, which followed the London Stock Exchange's crash of September, signalled the beginning of the 12 - year Great Depression that affected all Western industrialized countries.
Bessemer process
A system akin to the Bessemer process has existed since the 11th century in East Asia. Economic historian Robert Hartwell writes that the Chinese of the Song Dynasty innovated a ``partial decarbonization ''method of repeated forging of cast iron under a cold blast. Sinologist Joseph Needham and historian of metallurgy Theodore A. Wertime have described the method as a predecessor to the Bessemer process of making steel. This process was first described by the prolific scholar and polymath government official Shen Kuo (1031 -- 1095) in 1075, when he visited Cizhou. Hartwell states that perhaps the earliest center where this was practiced was the great iron - production district along the Henan -- Hebei border during the 11th century.
Han dynasty
Han-era astronomers adopted a geocentric model of the universe, theorizing that it was shaped like a sphere surrounding the earth in the center. They assumed that the Sun, Moon, and planets were spherical and not disc-shaped. They also thought that the illumination of the Moon and planets was caused by sunlight, that lunar eclipses occurred when the Earth obstructed sunlight falling onto the Moon, and that a solar eclipse occurred when the Moon obstructed sunlight from reaching the Earth. Although others disagreed with his model, Wang Chong accurately described the water cycle of the evaporation of water into clouds.
Great Wall of China
The Great Wall stretches from Dandong in the east to Lop Lake in the west, along an arc that roughly delineates the southern edge of Inner Mongolia. A comprehensive archaeological survey, using advanced technologies, has concluded that the Ming walls measure 8,850 km (5,500 mi). This is made up of 6,259 km (3,889 mi) sections of actual wall, 359 km (223 mi) of trenches and 2,232 km (1,387 mi) of natural defensive barriers such as hills and rivers. Another archaeological survey found that the entire wall with all of its branches measure out to be 21,196 km (13,171 mi). Today, the Great Wall is generally recognized as one of the most impressive architectural feats in history.
Wang Chong
Wang Chong (; 27 – c. 100 AD), courtesy name Zhongren (仲任), was a Chinese meteorologist, astronomer, and philosopher active during the Han Dynasty. He developed a rational, secular, naturalistic and mechanistic account of the world and of human beings and gave a materialistic explanation of the origin of the universe. His main work was the "Lunheng" (論衡, "Critical Essays"). This book contained many theories involving early sciences of astronomy and meteorology, and Wang Chong was even the first in Chinese history to mention the use of the square-pallet chain pump, which became common in irrigation and public works in China thereafter. Wang also accurately described the process of the water cycle.
Capacitor
The capacitance of certain capacitors decreases as the component ages. In ceramic capacitors, this is caused by degradation of the dielectric. The type of dielectric, ambient operating and storage temperatures are the most significant aging factors, while the operating voltage has a smaller effect. The aging process may be reversed by heating the component above the Curie point. Aging is fastest near the beginning of life of the component, and the device stabilizes over time. Electrolytic capacitors age as the electrolyte evaporates. In contrast with ceramic capacitors, this occurs towards the end of life of the component.
Where does the Great Wall end, in the country where the man who described the process of evaporation once lived?
Who was able to describe the process of evaporation?
Wang Chong
What country was #1 in?
China
where does the great wall of #2 end
Lop Lake in the west