Egypt is one of the first and oldest countries in the world where civilization began on the soil deeper and the oldest and most prestigious civilizations in the world and is the ancient Pharaonic civilization, is situated on the northeastern side of the continent of Africa.
Focused along the lower reaches of the River Nile Zllk called siege of the Nile Valley of what are now the modern state in Egypt. Civilization coalesced around [3150 BC 1) with the political unity of Upper and Lower Egypt under the first pharaoh, and has evolved over the next three millennia. History and in a series of kingdoms stable, separated by periods of relative instability known as the periods of medium. Ancient Egypt reached its peak during the era of the modern state, and then entered into a period of slow decline. And Egypt occupied by a succession of foreign powers in the late period. The rule of the pharaohs officially ended in 31 BC, when Egypt fell to the Empire of Romania and became a Roman province. The pages of the history of Egypt does not end the beginning of the prehistoric period to the present time, is divided into pages of history of the Egyptian .
Prehistory
Early Dynastic Period
Old Kingdom
First Intermediate Period
Middle Kingdom
Second Intermediate Period
New Kingdom
Third Intermediate Period
Late Kingdom
Greek Period
Roman Period
Islamic Period
French Period
British Period
israiel period
And all these historical periods are commonly known as "the land of civilizations" in human history, with its historical excellence and wealth of knowledge huge - for seven thousand years span of time that enabled them to supremacy and leadership is always in the sciences, arts, culture and architecture in all areas of humanity.
I have always been to Egypt, the privacy that are unique to all the civilizations and nations, it is considered the oldest country in the world have communal identity and the current geographical boundaries shall be one.
Egypt has launched the name of the area, which includes the lower Nile basin, ie the area extending from Nubia in the south to the Mediterranean Sea, Red Sea and east to Libyan borders in the west .. The area there runs the River Nile starting from the heart of Africa's Great Lakes region until it reaches to the heart of northern Sudan where the flow in the Harianh main water the Ethiopian tributaries collecting water from rain, and then begins the river in stability after undergoing cataract area south of Aswan, and continues as well as up to the estuaries on the Mediterranean .
Egypt is one of the few regions in the world that has kept the name throughout its history that is Egypt under the name of the note on this region without changing .. But how was named after Egypt?
Egypt has known in the Pharaonic era, names such as "Kimbet" means "black land" as distinct from yellow desert land and mountain red and "Tmira" or "Thamir" also means the fertile black earth .
Egypt is unique among the Arabs, but comes to its geographical position gives it far more exclusivity and the most prominent in this location is that the heart of the body. Mode of contract, and the link between Asia and Africa Arab Arab .
If it is agreed that Egypt is part of the Levant and if some combines a blend between the Mashreq and Maghreb, it is made the Maghreb to the Mashreq geographically and historically. That Egypt is not only a geographical but also historical and ethnic unit.
So I became attracted all the major countries in the twentieth century, its importance in the Middle East is located between three continents Asia, Africa and Europe, are to represent the station as they all trade between the continents of the world and colonies of soldiers and ammunition .
Egyptian people and the people friendly and welcomes everyone who comes to Egypt and Gansyatvho Different religions are one people and by all accounts even by Egypt's geographical location has merged with the Egyptian people with all peoples of the world, but the fact that all this and homogeneous human entity that participated in all realms of human activity
And achieved the historic achievements as evidenced by the human civilization in its various stages .
And during the historical period gave birth to Egypt many of the symbols, which affected Vymejry history in various fields .
Pharaonic era
King Menes united the two countries
Ahmose
Thutmose
Tutankhamun
Nefertiti
Hatshepsut
Cleopatra
Khufu
Khafre
Menkaure
Amenhotep
tot ankh amone
hatshebsout
ramsess
Modern
Politics
Mohamed Abdo
Mohammad Karim
Omar Makram
Hassan Tobar
Ahmed Orabi
Abdullah Nadeem
Mostafa Kamel
Mohamed Farid
Saad Zaghloul
Muhammad Ali
Mohamed Naguib
Gamal Abdel Nasser
Mohamed Anwar Sadat (received the Nobel Prize in Peace)
Mohamed Hosni Mubarak
Literature
Mustafa Mahmoud
Naguib Mahfouz ( received the Nobel Prize in Literature)
Ahsan Abdul Quddus
Tawfiq al-Hakim
Science
Ahmed Zewail ( received the Nobel Prize in Chemistry )
Mostafa ElBaradei, (a Nobel laureate in peace )
Religion
Abdul Basit Abdul Samad
Mahmoud Ali Al-Banna
Mohammad Sidique explained
Mahmoud Khalil Hosary
Mohamed Mahmoud Tablawy
Mohamed Metwally Shaarawy
singers
om kalthome
abdel halim hafez
mohmed abdel wahab
Wednesday, May 18, 2011
the Great Pyramid
Is safe person is appointed to the Great Pyramid for the first time only consortium in place and raises his head to the highest Igil
High-rise building in sight at all admire the words: What God, hey, or to Alala, which Mia! , Or other
According to the language and culture!! .....
The same is the pyramid is the only building Albag of the seven ancient wonders of the world, and this is certainly demonstrates that
The greatest of them all ... The remains of that towering pyramid that defied time and making fun of the science of our time
Left sophisticated pyramid is the main concern - across different eras - the archaeologists and architects who
Could not reach so far to how to build it! , The Great Pyramid remained a puzzle for physicists and
Geology and astronomy and even biologists including exudes its secrets every day !!....
And below I'll show you some aspects of the miracle of the pyramid to absorb and to understand the extent of more miracle in the building
Pyramid:
First: Description of the Great Pyramid:
Height of 147 meters.
Side length of 228 m square base.
That is, it occupies an area of 13 acres.
And size of the total 2.5 million cubic meters.
Stone The number of 23 million stone.
Average weight of each stone from 2.5 to 8 million tons, some of the stones weigh up to 50 tons.
Estimated total weight of the pyramid, with 6 million tons.
And has been covered with limestone and white Ksute but still quite far, and became the height of the current 137 AD.
So far not revealed the Great Pyramid of all its regions, the temples are still attached to it - and
Which was attached to each other pyramids - buried under the sand.
Burial chamber of King Khufu's pyramid, the largest with a length of 10.4 meters by 5.2 meters and a height of 5.8
Meters. The ceiling of the room is a single piece of pure granite weighing 50 tons.
How the Great Pyramid was built?
1] The design and preparation stage
Sure that the ancient Egyptians Kano applicants in architecture and architecture it is very difficult in this day and age to build a pyramid, such as pyramid intimidated identical Fihrm Khufu's builders engineers at the highest level of accuracy and the same Zaip miles walls 52 degrees exactly and to and was built in the modern era did not withstand 100-year is not 4600 the year such as the pyramid of Cheops
Prior to the establishment of any building to be design and painting first and then study how the residence through the soil test
And a series of complex calculations to measure and the strong pressure on the walls and the rules of the building.
And when building the pyramid pharaohs km needs of workers and engineers and workers who prepare food and drink for this tremendous human energy to produce this unique Egyptian edifice of its kind in the whole world
It is known that the pharaohs were working in the year, three months only, and is the flood period is the period in which there is growing is that the building of the pyramid took twenty years,
In other words, the actual duration of the pyramid's construction is 60 months, which just five years, and scientists had estimated a
Mathematics duration of the pyramid's construction labor 640 years! ..!
Then also question the skill of these workers and the heads of workers and engineers who had their
Stone in the position very carefully to fully adhere to the previous stone and without a single error!!
2] on how to prepare and bring Stones:
First: cut stones
The ancient Egyptians excelled in the cut, the stones of the pyramid, the largest component in a manner to ensure the smooth, fully air discharge between the stones and the adhesion between the stones without the need for materials used for adhesion and a prestigious stage of the vacuum between the stones of the Secret Secrets of the Pharaohs
Second: the source of stones
That the pyramid was being built through the pieces of natural rock and stones but from the molding manufacture
Egyptian builders of gravel mixed with lime, and that these stones cast much stronger than the
Concrete that we know now, and that the bottom of the pyramid is a nucleus of natural rock have been carved
To take the desired shape and then the rest of the establishment of the pyramid, ie, that there were in this group of Almntgaha
Khufu chose the hills of the oldest Bnanh will be the base of the pyramid .
3) How to move stones and put in place:
Given the magnitude of the stones used in building the Great Pyramid, there are some theories used to transport stones from the base to the top of the pyramid
1 - building the Pharaohs to the path of the sand next to spiral around the pyramid increasinglyrise up to the Summit .
2 - rolling rocks at a group of tree trunks and then lifted into place using a complex system of pulleys.
3 - through paper airplanes!!! And that one of the scientists noted, hieroglyphic writing
Shows a row of men standing in a strange position and holding the lead rope by a particular type of system .
To a giant mechanical bird in the sky .. And turned out to be a giant kite is used to lift the blocks
Heavy .. So I went in the experience of having disturbed her curiosity to look at how realistic this possibility, I tried with
Some friends to raise a piece of wood length of 25 meters and a cement block weighing 150 kg by plane
Ordinary paper purchased from a shop has succeeded in doing so, and then rolled experiences, and was able to
Raise the obelisk weighs 35 tons Bastkhaddan a giant kite and a set of pulleys, and adopt the idea that
To rely on the momentum of the wind to carry rocks and facilitate the transfer!!
4 - Hydraulic Lift
5 - Pharaohs progress in the field of science where we find that the pharaohs may have been reached to cancel the gravitational
Ground and used in lifting stones
The greatest secret in the construction of the Great Pyramid
A group of scholars from architecture, Egyptology that the pharaohs were able to cancel the gravity
When you raise the stones used in building the pyramids and move long distances through
Forward is a sound and vibrations Kahrostetekip shipments to facilitate the lifting process, said Dr. Professor
Architecture University and an expert on Egyptology to the editor that this scientific explanation for how to build
Pyramids came through Brdetyn .. First in a cemetery in one of the architects of the Middle Kingdom at Karnak and the second
In the Louvre in Paris. And said: "The Pharaohs were able to control many of the cosmic forces
And took advantage of energy in achieving the purposes of scientific Balbndul and used in the development of stones to be consistent with
The direction of her veins in the mountains to be more resistant to erosion. He added that the miracle is the Pharaonic
How to adjust the angle and the associated geometry of the universe and the movement of the stars and the magnetic and geographic trends
To the ground. This theory proved wrong theories about the way in which built the pyramids
- Pharaohs judge in the force of gravity and its effect on weight lifting, as is the case on the surface of the moon
Or in space flight.
- The famous Pharaonic architect Imhotep, who was helping the workers in the transfer of stones by reading spells
He holds a special magic of Osiris, and then ordering the fund to pay workers Vihrk stone without effort.
- Pharaohs used in laser cutting and carving stone statues.
- Pharaohs used mathematical equations of astronomy and the stars in the building of the pyramids.
- Pharaohs used green hazardous radiation in the mummification of the bodies and kill the enemies.
- The Great Pyramid to be built a telescope and a space observatory to address the sky and not a grave of a king.
- Pharaohs understood the modern atomic theory and bringing the system of the universe.
HISTORY EGYPT NASSER -- Murderous CIA and Saudi ISLAM BROTHERHOOD
History of Military Dictatorship in Egypt
Gilbert Achcar: Military rule in Egypt began with Nasser's overthrow of King Farouk and increasing independence from the US
Gilbert Achcar grew up in Lebanon, and is currently Professor at the School of Oriental and African Studies (SOAS) of the University of London. His books include The Clash of Barbarisms: The Making of the New World Disorder, published in 13 languages, Perilous Power: The Middle East and U.S. Foreign Policy, co-authored with Noam Chomsky, and most recently the critically acclaimed The Arabs and the Holocaust: The Arab-Israeli War of Narratives.
Transcript
PAUL JAY, SENIOR EDITOR, TRNN: Welcome to The Real News Network. I'm Paul Jay. In Egypt, the military dictatorship continues its rule. The question is whether it will be with or without President Mubarak. How did in fact this dictatorship, this military regime come to power in Egypt? Now joining us to talk about the history of this regime is Gilbert Achcar. He grew up in Lebanon. He's now a professor of development studies and international relations at the School of Oriental and African Studies in London. His most recent book is The Arabs and the Holocaust: The Arab-Israeli War of Narratives. Thanks for joining us, Gilbert.
PROF. GILBERT ACHCAR, SCHOOL OF ORIENTAL AND AFRICAN STUDIES: Thank you, Paul. My pleasure.
JAY: So talk a bit--first of all, do you agree with this description, that Egypt is in fact essentially a military dictatorship?
ACHCAR: Of course, essentially. I mean, it has been like that since 1952. It has been basically a country where the backbone of the political power is the military. Of course, it has taken more of a civilian facade in the last few decades, but the real center of power remains the army.
JAY: So in 1952 this is essentially the coup led by the then middle rank officer Nasser overthrowing the king. Give us a sense of the arc of history. Take us from there to today.
ACHCAR: Well, by a kind of historical coincidence, if you go back to the year 1952, this is a year that started with a major day of riots and fire in Cairo. That was on 26 January 1952. And by, I mean, historical coincidence, the events this time start on 25 January. So that was an indication of the ripeness of the situation for something. That was really a very explosive situation: very sharp social contradictions, a lot of discontent, a very hated monarchy, British domination. So a huge resentment. And on top of all that, of course, the resentment created by the war of Palestine in 1948 and the defeat of the Arab armies, including the Egyptian army, in that war. So, all that created a very unstable situation. The country already, after '45, had gone through a wave of social struggle, which peaked in 1946. Now, in terms of political forces [that] you had, I mean, the organized workers movement in the country was quite weak. What could be described as the liberal party was rather discredited and unable to lead any mass uprising. The major organized political force that existed was already at that time the Muslim Brotherhood. So you can see a lot of repetition, actually, in history. And the end result of all that was that the army moved forward and seized power. But that was not the army. We have to be clear on the fact that that was actually a group of officers that organized within the army. They called themselves the Free Officers. And that was a committee representing more or less all the major political currents within the Egyptian opposition. So you had people among them close to the Muslim Brotherhood, to people close to the communists, and nationalists in between, and even a few liberal figures at the beginning.
JAY: Alright. Gilbert, back up just a sec. For viewers that aren't too aware of this history, talk about the issue of the Suez Canal, what was at stake, that the--the extent to which Britain and France had, you know, control of this region, and why the Suez was so important.
ACHCAR: Well, that came later, the issue of the Suez Canal. I mean, of course, that was an old nationalist demand--or normal national demand, I would say, in Egypt by the national movement, because the Suez Canal is such a vital economic artery for Egypt that they thought that it didn't--I mean, it wasn't correct, it wasn't right that it belonged to foreign interests. But actually the new regime that came to power in '52, and when even after Nasser took over in 1954 and he became the president, '54--for the first two years someone else was at the head of--I mean officially at the head of the state. He--it is not before 1956 that he nationalized the Suez Canal. And that came also after the failure of attempts to get US aid, actually, for economic projects in Egypt. And finally the government, faced with the conditions put by the United States, the reluctance of United States to give it aid, and also the fact that they couldn't even get arms, which they needed, finally decided to nationalize the Suez Canal in 1956. And that led to the tripartite aggression against Egypt waged by Britain, France, and Israel. The three of them attacked Egypt. And, well, that ended with them having to withdraw with a few conditions, but under international pressure, including that of the United States at that time. Both Moscow and Washington made pressure on the three countries to withdraw from Egypt. And Nasser came out of that as a major hero for not only the Egyptians but all the Arab people, and beyond the Arab world, actually, as one of the key heroes of the -- what used to be called -- it started [to] be calling at that time the Third World.
JAY: And again, for people that don't understand the geography here, the Suez Canal was the central route for oil tankers moving oil from the Arabian Gulf oil fields to Europe. In fact, I would expect, at that time at least, it was the majority of Europe's oil would've been traveling through the Suez. So it had enormous strategic interests for England and France, but also for the United States, who wants to start to control the world by controlling the Middle East oil supply.
ACHCAR: Absolutely. That's absolutely the case. And it remained so until 1967, when it had to be closed as a result of the war, the June 1967 Arab-Israeli War. And it remained closed for quite a long time, and tankers were developed to go, you know, around Africa. And that diminished somewhat the importance of the canal. But when it was reopened, it recovered part of its importance, and it's one of the major sources of income for Egypt.
JAY: So, as you say, the beginning of the military regime is the coup that overthrows the king in 1952. Nasser emerges as a nationalist hero who, if I understand correctly, sort of plays the Soviet Union and the United States off against each other to some extent, at least more independent than others in the Middle East. What happens to Nasser? And then what happens to the character of the military regime?
ACHCAR: Well, this is--I mean, Nasser took over in '54. He nationalized the Suez Canal in '56 and had his first war, with him at the head of the state, against Israel. But one of his major projects was Arab unification, because he was an Arab nationalist -- more than an Egyptian nationalist, he was an Arab nationalist. And there has been an attempt at creating what was called the United Arab Republic by the union of Egypt and Syria, but that was relatively short-lived. It ended in '61. During that time, there has been a gradual radicalization of the Nasserite regime. It started at the beginning, with a, let's say, fairly relatively moderate, democratic (in the social sense, not in the political sense) kind of program that is a certain degree of agrarian reform, what at the beginning was rather moderate, and some national aspirations. So sovereignty, agrarian reform, the removal of the old land-based classes, that was the initial program. And gradually this government went into gradual encroachments in capitalist property in Egypt, starting with foreign property at the time of the Suez Canal. And later on, most of foreign investments in Egypt were nationalized. And later on, in the early '60s, that moved to local capital. And the government proclaimed socialism in the early '60s and started defining itself as socialist, renamed the ruling party the Socialist Union, the Arab Socialist Union. And that was seen, you know, from Washington as a kind of equivalent of what was happening in Cuba, what's happened in Cuba, you know, after Fidel Castro seized power and revolutionaries took power in '59. Well, a couple of years later the revolution had proclaimed itself socialist, and even adopted Marxism in Cuban case, which is not the case, was never the case in the Egyptian case, where it was rather what used to be called -- what has been called at that time "Arab socialism". They wanted to have their own brand of socialism in the same way that you had in that same period of history African socialism in some Sub-Saharan African countries and the like.
JAY: What was Nasser's relationship with the more dominant members of the Egyptian elite, non-nonmilitary elite?
ACHCAR: Well, they practically--I mean, the military regime, well, started by substituting itself politically to the former ruling class and to whichever class was dominant, the economically dominant class in Egypt. But then, a few years later, this substitution moved from the political realm into the economic realm, where actually they even took over economically and the economy became completely dominated by state capitalism, that is, the public sector, a very sweeping nationalization of the industry, which became almost completely nationalized, except a relatively marginal private sector when it comes to the industry. So, you know, at that time in the '60s you had debates even among Marxists about how to describe this country of Egypt. Was it the equivalent of what you had in the Soviet Union and Eastern Europe, or even Cuba or other countries? Was it, you know, this kind of socialism? Or was it something different because of the different ideology, because there was no commitment to suppress private property as such as a principle, and because the government still spoke of the union of classes and of popular forces? But it was indeed a very radical experience, one of the most radical experiences led by nationalists, short of those which were led by communists in other countries, like China or Vietnam or the rest. If you take nationalist-led experiences, there's no doubt that the Egyptian one has been historically one of the most radical, if not the most radical.
JAY: Now, there's a quote from President Eisenhower where he talks about using the alliance with the Saudi family, Saudi royal family, and their defense of Mecca to spread Wahhabism throughout the Middle East, and one of the objects is to fight Nasserism. So how does the US deal with Nasser?
ACHCAR: Yes, absolutely. I mean, once--you know, after the turn of the regime towards the [inaudible] opening up the regime towards the Soviet Union, which started in the mid-'50s with arms imports and gradually deepened, the country, seen from Washington, as I said, became another Cuba. You know, that was seen by Washington as some kind of communist state and closely allied to the Soviet Union, so part of the Soviet system. And the United States faced Egypt through its main region -- and oldest regional ally, which is the Saudi Kingdom, which we shouldn't forget, every time, that the Saudi Kingdom is by far the most undemocratic, the most anti-women, the most obscurantist and fundamentalist state of the whole region, and that compared to Saudi Kingdom, Iran, even Iran is a beacon of democracy and women's liberation. And so this state, which has been, which is the oldest ally of the United States in the region, it's really a US protectorate. I call that in one of my books an Islamic Texas. It's the real 52nd state of the United States of America--well, the 51st. The Saudi Kingdom was instrumental in the alliance with the United States in trying to fight Nasserism. And that went through support to the Muslim Brotherhood, who were repressed by Nasser in 1954 after an attempt at assassinating him, and who became Nasser's most bitter enemy. His fiercest enemy were the Muslim Brotherhood, and they were backed by the Saudi Kingdom and by the CIA and the United States.
JAY: Yeah. This is of course one of the great ironies of this whole current war on terrorism rhetoric, that so much of this Islamic extremist radical movement was nurtured and brought into being by the US and the Saudis to fight Nasserism and other forms of Arab nationalism.
ACHCAR: Absolutely. I mean, the United States has been instrumental in producing the kind of political cycle that prevailed after the '70s and through which Islamic fundamentalist organizations and movements became the main forces in the in the mass opposition in the Arab world. But that is a result of two decades of fight by the United States against any kind of progressive current, secular or whatever you want to call it, any kind of left-wing current in the region, and fighting them through the use of Islam, of the Muslim Brotherhood, of the Saudi Kingdom, and a whole range of Islamic fundamentalist organization. And this kind, you know, of line followed by Washington ended relatively recently, because the last major example or illustration of this same line is the war in Afghanistan against the Soviet Union. I mean, everybody knows how the United States also there used Islamic fundamentalist forces in alliance with the Saudi Kingdom again and the Pakistani dictatorship in fighting the Soviet occupation of the country.
JAY: And, of course, the alliance with the Saudis is as close as ever. Gilbert, let's pick this up in part two of our interview about the rise of the current military state of Egypt. Please join us for part two of this interview on The Real News Network.
End of Transcript
http://www.youtube.com/watch?v=G7FN_mQFrSU
Tuesday, May 17, 2011
Controversies of Historiography of Indian Subcontinent from 1960 to 1970s
To a Question that what does Marxist History actually mean, Dr. Upinder Singh had given an elaboration to Malvika Singh. It had been published in Tehelka of Tarun J Tejpal, Vol 5, issue 33, Saturday, August 23, 2008, New Delhi.
According Dr. Upinder Singh, “Well, I think there is a lot of diversity within what we describe as Marxist historiography. Marxist history writing of the 1960s and 1970s was truly path braking. It brought in an important focus on economic and social processes. It brought in marginalised and subordinated social groups. It brought in a focus on agrarian relations, class structure, forms of labour. At the same time, it is important to recognise that Marxist historiography, especially in forms in which it percolated down into classrooms and public consciousness, also did have major problems. One of the limitations was the fact that religion, for instance, was generally treated as something that was a reflection of existing social and political power relations and certainly the aesthetic dimensions of the past were not given the kind of treatment they deserved. When an ideology, - any ideology - becomes dominant, deeply entrenched in research and education institutions, and is given state patronage, it can become a major obstacle to fresh creative thinking. I think without disagreement and dissent there can be no progress in any discipline. It is also important to look at other strong ideological positions that exist in our times. You have right-wing interpretation of the past, which are constantly trying to impose a very monolithic view of Indian culture on us and are very intolerant of anyone who thinks differently.”
The above definition is complete in itself to some extent. However, Dr. Upinder, a teacher of Ancient History at Delhi University India, has obliquely referred to some controversies. The readers would be able to develop good picture of Indian Historiography in post independence India by referring to another statement made by S. Gopal, another established historian and son of Honourable President of India, S. Radhakrishanan. Dr. Upinder Singh is daughter of Indian Prime Minister Dr. Manmohan Singh. The statement of S. Gopal is given at the following link.
The Fear of History.
Further, an obituary by K. N. Pannikar, another established historian, which contains reference to debates of 1960s and 1970s plays another dimension and it can be accessed at the following link.
A Great Historian
Source: TEHELKA, VOL 5, ISSUE 33, AUGUST 23, 2008, TEHELKA Frontline, Volume 19 - Issue 09, Apr. 27 - May 12, 2002, India's National Magazine from the publishers of THE HINDU Seminar 221, January 1978
The plausibility of the geology of Char
Char is (according to StarCraft Wiki) a planet orbiting a binary star-system in the Koprulu sector. Its dimensions are comparable to earth with a diameter slightly smaller of 10.521 km to the 12.756 km of earth, gravity is also comparable with 91% of earth. Char possess two small moons with a diameter under 1.000 km named Eris and Ate in a planet-near orbit.
Fig.1. Char as imagined by jahim-myess 2009 ©
The surface is dominated entirely by a volcanic landscape, according to the sparse information recovered from a geological survey by the Confederacy and the Kel-Morian Combine more than 52 calderas, 18 mountain ranges with active volcanoes, 38 lava-lakes and 5 lava-oceans of varying extent were recognized, small temporally pockets of liquid water were also spotted on the surface, feed probably by the rare rain events. The remaining large plains are covered with dark lava and ash-layers.
Thermal scans of the surface showed temperatures ranging from 48°C to 800°C - the last values reached in large pyroclastic flows travelling down from the volcanoes.
The atmosphere consists mainly of oxygen with great amounts of sulphur and ash derived from the volcanic exhalations, water vapour is present but most of the time in very small quantities - only periodically and locally clouds supersaturated of water vapour form and rain occurs.
Despite the hostile environment and the resemblances to hell the planet was soon colonized to gain access to his rich mineral deposits, especially heavy metals - Char is one of the richest resource nodes in the sector and was hotly contested by the Terrans, the Protoss and finally the Zerg.
From all the colonized planets Char is characterized by a quite unique tectonic, intense phases of tectonic storms and magmatic activity occur periodically, melting entire areas of the surface and sparing only temporary islands that drift like a raft on an immense ocean of fire.
According to the videogame StarCraft this is the fictive description of one of the last battlefields in a future war between three alien races, however science-fiction stories tend to be at last inspired by real science - so how plausible is such a planet?
Until 1995, with the first detection of an exosolar planet in the 51 Pegasi system, many speculation were proposed about the existence of planets or even inhabited worlds orbiting other stars. Most time these worlds resembled surprisingly earth - with landscapes that would not be to unfamiliar to us and only the advent of space probes in the 20th century showed us that the exotic worlds can possess an exotic landscape with a own exogeology.
With its pronounced eccentric orbit Char is apparently a common example in space - research showed that exoplanets can have a wide range of eccentricities and that our solar system is quite unusual with it's close to circular orbits. The research confirmed also that planets can form and persist in such gravitationally and dynamically active systems that are multiple star systems, 25% of the discovered planets until today occur in a binary-planetary system with two stars.
Two types of binary-planetary systems can be distinguished - the planet can be bound by the gravitation of just one star (S-Typ Orbit) or orbit the mass centre of both the star-partners (P-Typ Orbit). Models show that probably only planets orbiting the primary star have dynamically stable orbits for long periods - so these planets are better suited to host a stable environment and support life.
Char apparently possess a typical P-Typ Orbit and hosted no primary life forms; the only recent signs of life found on the burned surface are introduced neobiota by humans (ragnasaurs, some mushroom-like fungi and small rodents) and 10 billions of Zergs.
In the videogame two main geomorphologic units can be distinguished on the surface of Char:
-UNIT 1: Extended smooth plains of dark rocks forming the low- and the highlands, only occasionally broken open by lava-lakes, seem to be the results of episodic large scale effusion of very fluid lava, in outcrops various superimposed layers are recognizable, comparable to the landscape formed by the terrestrial Deccan traps.
Fig.2. Lava-lake on Char with steep cliffs showing layered mafic rocks of unit 1, SCV for scale, note also the degassing of volcanic gases in a vespene geyser field - a resource unknown on earth.
-UNIT 2: The second unit composed also of dark (mafic?) rocks is characterized by a wrinkled aspect, randomly distributed circular depressions and large crystals-like features are recognizable. This unit can be found only on the lowlands of the first unit.
Fig.3. Contact of unit 1 to unit 2, SCV for scale, in the upper corner creep of the Zerg-infestation on Char is recognizable.
The circular depressions are an interesting detail, three possible explanations are possible - the crater-like features could be maars (proposed by reynardo), formed by the explosive reaction between groundwater and magma, they could be craters of a more explosive volcanism (signs of a chance in the chemistry of the magma?) or finally impact craters, implying that these areas are older than the surrounding smooth plains (if we assume that the Char systems followed a similar evolution to our solar system, where impacts decreased over geologic time).
The cartoonish crystal-like features could be formed only by slow crystallization of circulating fluids or cooling magma, and subsequently liberated by erosion from the surrounding lava sheets (or crystallised dikes as proposed by reynardo). The largest crystals found on earth formed underground in very peculiar conditions over millions of years - in a cave precipitating from an aqueous solution in the mine of Naica or in pegmatite intrusions - time that due the tectonic activity of Char apparently is not available.
Also the erosion on Char, with little water in the atmosphere, should be practically inexistent or very slow.
The unusual planetary tectonics of Char is explained in the videogame by its eccentric orbit and varying gravitational pull of the two stars on the planet - the kinetic energy is transformed by friction in heat, melting the entire crust when Char approaches its two suns.
In our solar system there is an example that maybe inspired this idea. Io is one of the larger moon of the gas giant Jupiter, and the most active body in the solar system. Io is too small to produce or store enough heat inside, the energy to feed the intense volcanism, based on sulphur (melt temperature 115°C) , is provided by tidal heating on the slightly eccentrically orbit around Jupiter. However this orbit is stabilized only by the presence of the other moons of Jupiter, without them Io would approach a circular orbit and soon cool down.
That Char would remain or survive long enough on such an extreme orbit that produces as much energy to melt mafic rocks (with melt temperature of over 1.000°C) is therefore doubtful.
There could be however a second model to explain the tectonics of Char.
Venus possess a similar diameter (12.104 km) and bulk density to earth, also the heat generated inside the two planets should be similar. On earth this energy is released by upwelling and ascending currents of the mantle, the creeping material crashes the outermost insolating crust and heat is dissipated along convergent and divergent plate boundaries.
Signs of strain like mountain belts, thrust systems and rifts are mostly concentrated at these boundaries. The surface of Venus is in contrast surprisingly smooth, there are less than 1.000 craters known randomly distributed and 80% of the topography consist of plains, elevations are concentrated in two large "bumps" - Ishtar and Aphrodite-Terra.
Fig.3. Simplified version of the topographic map provided by the Pioneer Venus Orbiter released in 1980 by NASA.
There are however unique tectonic landforms and terrains on Venus, divided into five classes: plains, volcanic rises, crustal plateaus, tesserae, coronae, and chasmata - the last three features are associated with strain on Venus crust: tesserae are areas of ridges or fractures (resembling the unit 2 on Char), coronae are circular to elliptical altitudes and chasmate are large graben-like structures.
These features resemble nothing on earth and it is therefore improbable that Venus release its inner heat in the same manner as earth trough plate boundaries.
Fig.4. Tessera terrain in Ovda Regio. Broad ridges, assumed to be open folds, trend ENE. The ridges are cut by grabens trending NNW, and they are embayed by radar-dark material that fills topographic lows. The "eye-shaped" pattern in the western part of the image suggests that some of the deformation of this tessera terrain was ductile. G = grabens; R = broad ridges(after WATTERS & SCHULTZ 2010).
According to one model for Venus, the stagnant-lid model, the lithosphere insulates the mantle until the growing heat reaches the melting temperature of the crust, causing increased volcanism and possibly reshaping the entire crust. This model would also explain the lack of impact craters (like on unit 1 on Char) of the surface - the Venusian crust was apparently mostly reshaped by an intense volcanism 300 to 500 million years ago.
And there is the problem with this model to apply it on Char - the periodic partial melting of the crust would occur in geologic periods, not so often as proposed in the videogame.
Char is a imaginary world, however the discoveries on the planets of our solar system and the discovery of exoplantes shows that there are exotic worlds with their own exotic geology (at least for geo-based -logists).
Bibliography:
MASON; J.W. (2008): Exoplanets Detection, Formation, Properties, Habitability. Springer: 314
WATTERS, T.R. & SCHULTZ, R.A. (2010): Planetary Tectonics. Cambridge University Press: 518
Online Resources:
HAMILTON, C.J. (2002): Planetscapes. (Accessed 05.05.2011)
USGS (05.08.2003): Solar System Geology - Venus. (Accessed 05.05.2011)
USGS (05.11.2010): Maps of Venus Published by the U.S. Geological Survey. (Accessed 05.05.2011)
Subscribe to:
Posts (Atom)