ENGGINEERING IS HERE...
EGYPT & PYRAMID
The Egyptian pyramids are ancient pyramid-shaped masonry structures located in Egypt.
There are 138 pyramids discovered in Egypt as of 2008.[1][2] Most were built as tombs for the country's Pharaohs and their consorts during the Old and Middle Kingdom periods.[3][4] [5]
The earliest known Egyptian pyramid is the Pyramid of Djoser which was built during the third dynasty. This pyramid and its surrounding complex were designed by the architect Imhotep, and are generally considered to be the world's oldest monumental structures constructed of dressed masonry.
The best known Egyptian pyramids are those found at Giza, on the outskirts of Cairo. Several of the Giza pyramids are counted among the largest structures ever built.[6]
The Pyramid of Khufu at Giza is the largest Egyptian pyramid. It is the only one of the Seven Wonders of the Ancient World still in existence.
There are 138 pyramids discovered in Egypt as of 2008.[1][2] Most were built as tombs for the country's Pharaohs and their consorts during the Old and Middle Kingdom periods.[3][4] [5]
The earliest known Egyptian pyramid is the Pyramid of Djoser which was built during the third dynasty. This pyramid and its surrounding complex were designed by the architect Imhotep, and are generally considered to be the world's oldest monumental structures constructed of dressed masonry.
The best known Egyptian pyramids are those found at Giza, on the outskirts of Cairo. Several of the Giza pyramids are counted among the largest structures ever built.[6]
The Pyramid of Khufu at Giza is the largest Egyptian pyramid. It is the only one of the Seven Wonders of the Ancient World still in existence.
The shape of Egyptian pyramids is thought to represent the primordial mound from which the Egyptians believed the earth was created. The shape is also thought to be representative of the descending rays of the sun, and most pyramids were faced with polished, highly reflective white limestone, in order to give them a brilliant appearance when viewed from a distance. Pyramids were often also named in ways that referred to solar luminescence. For example, the formal name of the Bent Pyramid at Dahshur The Southern Shining Pyramid, and that of Senwosret at el-Lahun was Senwosret is Shining.
While it is generally agreed that pyramids were burial monuments, there is continued disagreement on the particular theological principles that might have given rise to them. One theory is that they were designed as a type of "resurrection machine."[10]
The Egyptians believed the dark area of the night sky around which the stars appear to revolve was the physical gateway into the heavens. One of the narrow shafts that extends from the main burial chamber through the entire body of the Great Pyramid points directly towards the center of this part of the sky. This suggests the pyramid may have been designed to serve as a means to magically launch the deceased pharaoh's soul directly into the abode of the gods.
All Egyptian pyramids were built on the west bank of the Nile, which as the site of the setting sun was associated with the realm of the dead in Egyptian mythology.[11]
While it is generally agreed that pyramids were burial monuments, there is continued disagreement on the particular theological principles that might have given rise to them. One theory is that they were designed as a type of "resurrection machine."[10]
The Egyptians believed the dark area of the night sky around which the stars appear to revolve was the physical gateway into the heavens. One of the narrow shafts that extends from the main burial chamber through the entire body of the Great Pyramid points directly towards the center of this part of the sky. This suggests the pyramid may have been designed to serve as a means to magically launch the deceased pharaoh's soul directly into the abode of the gods.
All Egyptian pyramids were built on the west bank of the Nile, which as the site of the setting sun was associated with the realm of the dead in Egyptian mythology.[11]
MACHUPICCHU
THE AMAZING STRUCTURE
Machu Picchu was constructed around 1462, at the height of the Inca Empire. It was abandoned less than 100 years later. It is likely that most of its inhabitants were wiped out by smallpox before the Spanish conquistadores arrived in the area, and there is no record of the Spanish having known of the remote city. One theory about the purpose of the citadel, by Hiram Bingham, is that it was the traditional birthplace of the Inca of the "Virgins of the Suns".[2]
Another theory maintains that Machu Picchu was an Inca "llaqta", a settlement built to control the economy of these conquered regions. Yet another asserts that it may have been built as a prison for a select few who had committed heinous crimes against Inca society. Research conducted by scholars, such as John Rowe and Richard Burger, has convinced most archaeologists that Machu Picchu was an estate of the Inca emperor, Pachacuti. In addition, Johan Reinhard presented evidence that the site was selected because of its position relative to sacred landscape features such as its mountains, which are purported to be in alignment with key astronomical events that would have been important to the Incas.
View of the city of Machu Picchu in 1911 Although the citadel is located only about 80 kilometers (50 miles) from Cusco, the Inca capital, it was never found by the Spanish and consequently not plundered and destroyed, as was the case with many other Inca sites. Over the centuries, the surrounding jungle grew over much of the site, and few knew of its existence. On July 24, 1911, Machu Picchu was brought to the attention of scholars by Hiram Bingham, an American historian employed as a lecturer at Yale University. Bingham was led up to Machu Picchu by a local 11 year old Quechua boy named Pablito Alvarez.[3] Bingham undertook archaeological studies and completed a survey of the area. Bingham coined the name "The Lost City of the Incas", which was the title of his first book.
Bingham had been searching for the city of Vilcapampa, the last Inca refuge and spot of resistance during the Spanish conquest of Peru. In 1911, after years of previous trips and explorations around the zone, he was led to the citadel by Quechuans. These people were living in Machu Picchu, in the original Inca infrastructure. Bingham made several more trips and conducted excavations on the site through 1915, carrying off artifacts. He wrote a number of books and articles about the discovery of Machu Picchu in his lifetime.
A complete overview of the site as seen from Huayna Picchu. At far left is the visitor centre and main entrance. At the top is the path to the Sun Gate. The site received significant publicity after the National Geographic Society devoted their entire April 1913 issue to Machu Picchu.
An area of 325.92 square kilometers surrounding Machu Picchu was declared a "Historical Sanctuary" of Peru in 1971. In addition to the ruins, this sanctuary area includes a large portion of adjoining region, rich with flora and fauna.
Machu Picchu was designated as a World Heritage Site in 1983 when it was described as "an absolute masterpiece of architecture and a unique testimony to the Inca civilization".[4]
On July 7, 2007, Machu Picchu was voted as one of New Open World Corporation's New Seven Wonders of the World. The World Monuments Fund placed Machu Picchu on its 2008 Watch List of the 100 Most Endangered Sites in the world because of environmental degradation resulting from the impact of tourism, uncontrolled development in the nearby town of Aguas Calientes that included a poorly sited tram to ease visitor access, and the construction of a bridge across the Vilcanota River that is likely to bring even more tourists to the site in defiance of a court order and government protests against it.
The central buildings of Machu Picchu use the classical Inca architectural style of polished dry-stone walls of regular shape. The Incas were masters of this technique, called ashlar, in which blocks of stone are cut to fit together tightly without mortar. The Incas were among the best stone masons the world has seen, and many junctions in the central city are so perfect that it is said not even a blade of grass fits between the stones.
Terraced Fields of Machu Picchu View of the residential section of Machu Picchu Some Inca buildings were constructed using mortar, but by Inca standards this was quick, shoddy construction, and was not used in the building of important structures. Peru is a highly seismic land, and mortar-free construction was more earthquake-resistant than using mortar. The stones of the dry-stone walls built by the Incas can move slightly and resettle without the walls collapsing.
Inca walls show numerous design details that also help protect them from collapsing in an earthquake. Doors and windows are trapezoidal and tilt inward from bottom to top; corners usually are rounded; inside corners often incline slightly into the rooms; and "L"-shaped blocks often were used to tie outside corners of the structure together. These walls do not rise straight from bottom to top but are offset slightly from row to row.
The Incas never used the wheel in any practical manner. Its use in toys demonstrates that the principle was well-known to them, although it was not applied in their engineering. The lack of strong draft animals as well as terrain and dense vegetation issues may have rendered it impractical. How they moved and placed enormous blocks of stones remains a mystery, although the general belief is that they used hundreds of men to push the stones up inclined planes. A few of the stones still have knobs on them that could have been used to lever them into position; it is believed that after the stones were placed, the Incas would have sanded the knobs away, but a few were overlooked.
The space is composed of 140 structures or features, including temples, sanctuaries, parks, and residences that include houses with thatched roofs. There are more than one hundred flights of stone steps–often completely carved from a single block of granite–and a great number of water fountains that are interconnected by channels and water-drains perforated in the rock that were designed for the original irrigation system. Evidence has been found to suggest that the irrigation system was used to carry water from a holy spring to each of the houses in turn.
According to archaeologists, the urban sector of Machu Picchu was divided into three great districts: the Sacred District, the Popular District to the south, and the District of the Priests and the Nobility.
Temple of the Sun at Machu Picchu Located in the first zone are the primary archaeological treasures: the Intihuatana, the Temple of the Sun and the Room of the Three Windows. These were dedicated to Inti, their sun god and greatest deity. The Popular District, or Residential District, is the place where the lower class people lived. It includes storage buildings and simple houses. In the royalty area, a sector that existed for the nobility, includes a group of houses located in rows over a slope, the residence of the Amautas (wise persons) was characterized by its reddish walls, and the zone of the Ñustas (princesses) had trapezoid-shaped rooms. The Monumental Mausoleum is a carved statue with a vaulted interior and carved drawings. It was used for rites or sacrifices.
As part of their road system, the Inca built a road to the Machu Picchu region. Today, tens of thousands of tourists walk the Inca Trail to visit Machu Picchu each year, acclimatising at Cusco before starting on a two- to four-day journey on foot from the Urubamba valley up through the Andes mountain range to the isolated city..
Terraced Fields of Machu Picchu View of the residential section of Machu Picchu Some Inca buildings were constructed using mortar, but by Inca standards this was quick, shoddy construction, and was not used in the building of important structures. Peru is a highly seismic land, and mortar-free construction was more earthquake-resistant than using mortar. The stones of the dry-stone walls built by the Incas can move slightly and resettle without the walls collapsing.
Inca walls show numerous design details that also help protect them from collapsing in an earthquake. Doors and windows are trapezoidal and tilt inward from bottom to top; corners usually are rounded; inside corners often incline slightly into the rooms; and "L"-shaped blocks often were used to tie outside corners of the structure together. These walls do not rise straight from bottom to top but are offset slightly from row to row.
The Incas never used the wheel in any practical manner. Its use in toys demonstrates that the principle was well-known to them, although it was not applied in their engineering. The lack of strong draft animals as well as terrain and dense vegetation issues may have rendered it impractical. How they moved and placed enormous blocks of stones remains a mystery, although the general belief is that they used hundreds of men to push the stones up inclined planes. A few of the stones still have knobs on them that could have been used to lever them into position; it is believed that after the stones were placed, the Incas would have sanded the knobs away, but a few were overlooked.
The space is composed of 140 structures or features, including temples, sanctuaries, parks, and residences that include houses with thatched roofs. There are more than one hundred flights of stone steps–often completely carved from a single block of granite–and a great number of water fountains that are interconnected by channels and water-drains perforated in the rock that were designed for the original irrigation system. Evidence has been found to suggest that the irrigation system was used to carry water from a holy spring to each of the houses in turn.
According to archaeologists, the urban sector of Machu Picchu was divided into three great districts: the Sacred District, the Popular District to the south, and the District of the Priests and the Nobility.
Temple of the Sun at Machu Picchu Located in the first zone are the primary archaeological treasures: the Intihuatana, the Temple of the Sun and the Room of the Three Windows. These were dedicated to Inti, their sun god and greatest deity. The Popular District, or Residential District, is the place where the lower class people lived. It includes storage buildings and simple houses. In the royalty area, a sector that existed for the nobility, includes a group of houses located in rows over a slope, the residence of the Amautas (wise persons) was characterized by its reddish walls, and the zone of the Ñustas (princesses) had trapezoid-shaped rooms. The Monumental Mausoleum is a carved statue with a vaulted interior and carved drawings. It was used for rites or sacrifices.
As part of their road system, the Inca built a road to the Machu Picchu region. Today, tens of thousands of tourists walk the Inca Trail to visit Machu Picchu each year, acclimatising at Cusco before starting on a two- to four-day journey on foot from the Urubamba valley up through the Andes mountain range to the isolated city..