A rocket-propelled grenade or an RPG is the name for any kind of weapon, held on the shoulder that fires rockets that have an explosive warhead. These warheads are attached to a rocket motor and the rocket has fins which help it to fly straight. Some types of RPG are reloadable, while others are used only once and then thrown away. RPGs, with the exception of self-contained versions, are muzzleloaders, loaded from the front end.
RPGs with High explosive anti-tank warheads are very effective against armored vehicles such as armored personnel carriers (APCs). They can also be used against tanks, as long as the shooter targets a weak part of the tank, such as the tracks or the top door of the turret.
In general, the front armour on a tank is too thick to be penetrated by an RPG warhead. In some cases, teams attacking tanks with RPGs will have multiple RPG users fire at the same tank, which may penetrate the armour. Insurgents have sometimes successfully used RPGs to shoot at helicopters.
Tibetan Plateau
The Tibetan Plateau, also known as the Qinghai-Tibetan (Qingzang) Plateau, is a vast, high plateau in Central Asia. It covers most of the Tibet Autonomous Region, the Qinghai Province in China, and Ladakh in Kashmir, India.
The Tibetan Plateau occupies an area of around 1,000 by 2,500 kilometers, and has an average elevation of over 4,500 meters. It is the highest and largest plateau in the world.
It was formed by the same forces which formed the Himalayas, namely, the movement of the Indian continental plate into Asia. The Plateau has an great effect on climate, and is the main cause of the monsoon rains.
Heraclitus
Heraclitus of Ephesus or Herakleitos (c.535 – 475 BC) was a pre-Socratic Greek philosopher. He was a native of Ephesus, Ionia, on the coast of Asia Minor.
His teaching, as we have it now, is a series of epigrams. This means his teachings are sayings and remarks, rather than systematic essays. Heraclitus is famous for his doctrine of change being central to the universe. His famous sayings, "All is flux", and "You cannot step twice into the same river" is still remembered today. Another of his sayings appeals to some psychologists:
Often it is difficult to understand what he was trying to say. He believed in the unity of opposites, stating that "the path up and down are one and the same".
His utterance that "all things come to be in accordance with this "logos"," (literally, "word," "reason," or "account") has been the subject of many interpretations.
"Logos" became a technical term in philosophy, beginning with Heraclitus, who used the term for a principle of order and knowledge.
Diogenes Laërtius states that Heraclitus' work was "a continuous treatise "On Nature", but was divided into three discourses, one on the universe, another on politics, and a third on theology." Theophrastus says (in Diogenes) "... some parts of his work are half-finished, while other parts make a strange medley".
Diogenes also tells us that Heraclitus deposited his book as a dedication in the great temple of Artemis, the Artemisium, one of the largest temples of the 6th century BC, and one of the Seven Wonders of the Ancient World. Ancient temples were regularly used for storing treasures, and were open to private individuals under exceptional circumstances. Many later philosophers refer to the work.
Thales
Thales of Miletus, about 624 BC – 546 BC, was a pre-Socratic Greek philosopher. He was from Miletus in Asia Minor. Many, notably Aristotle, regard him as the first philosopher in the Greek tradition.
According to Bertrand Russell, "Western philosophy begins with Thales". Thales attempted to explain natural phenomena without reference to mythology and was tremendously influential in this respect. Almost all of the other pre-Socratic philosophers follow him in attempting to provide an explanation of ultimate substance, change, and the existence of the world—without reference to mythology. Those philosophers were also influential, and eventually Thales' rejection of mythological explanations became an essential idea for science. He was also the first to define general principles and set forth hypotheses. As a result he has been called the "Father of Science", though maybe Democritus is more deserving of this title.
In mathematics, Thales used geometry to solve problems such as calculating the height of pyramids and the distance of ships from the shore. He is the first known individual to whom a mathematical discovery has been attributed. Also, Thales was the first person known to have studied electricity.
Hardancourt
Hardancourt is a village in the Vosges département of northeastern France.
Anaximander
Anaximander (; "Anaximandros"; c. 610 – c. 546 BC) was a Pre-Socratic Greek philosopher who lived in Miletus, a city of Ionia. He belonged to the Milesian school and learned the teachings of his master Thales. He succeeded him and became the second master of that school where he counted Anaximenes and Pythagoras amongst his pupils.
Little of his life and work is known today. According to available historical documents, he is the first philosopher known to have written down his studies, although only one fragment of his work remains. Fragmentary testimonies found in documents after his death provide a portrait of the man.
Anaximenes of Miletus
Anaximenes () of Miletus (c. 585 BC-c. 525 BC) was a Greek Pre-Socratic philosopher from the latter half of the 6th century, probably a younger contemporary of Anaximander, whose pupil or friend he is said to have been.
Anaximenes, like others in his school of thought, practised material monism, the idea that underlying reality is one single thing.
For him, the primary substance was air. it was an attempt to find a natural way to explain the world.
Eberhardt del’Antonio
Eberhardt del’Antonio (April 21, 1926 in Lichtenstein - February 22, 1997 in Dresden) was a German writer.
Eberhardt Del'Antonio was the son of a locksmith. He learned the job as an technical drawer. He was fighting for the German army during the Second World War.
Gorgias
Gorgias (, ca. 487-376 BC), Greek sophist, presocratic philosopher and rhetorician, was a native of Leontini in Sicily. Along with Protagoras, he forms the first generation of sophists. Several doxographers report that he was a pupil of Empedocles, although he would only have been a few years younger.
His theory was subjected of critique by Plato in his work "Gorgias".
Sophism
Sophism can mean two very different things. In Ancient Greece, sophism was practiced by "sophists", who were a group of teachers of philosophy and rhetoric. In the modern definition, a sophism is a confusing or slightly incorrect argument used for deceiving someone.
The word "sophism" originated from the Greek word σόφισμα, "sophisma" (from σοφίζω, "sophizo" meaning "I am wise").
The similar Greek word σοφιστής, "sophistēs" means "wise-ist, one who does wisdom, one who makes a business out of wisdom" while σοφός, "sophós" means a "wise man".
The ancient Greek philosopher Protagoras
(ca. 490–420 BC) is often said to be the first of the sophists. Others include: Gorgias, Prodicus, Hippias, Thrasymachus, Lycophron, Callicles, Antiphon, and Cratylus.
Plato opposed those sophists because they only abused wisdom for their own interest and refused the truth and justice.
In modern usage, "sophism", "sophist", and "sophistry" are derogatory terms, due the influence of many philosophers in the past. Sophism and platonism were rival schools, as enemies of each other.
A "sophism" is a statement to deceive someone in a debate or conversation. It might be made to seem to make sense when really being wrong, or it might use difficult words and complicated sentences to intimidate the audience into agreeing. An argument "ad hominem" is an example of sophistry.
A "sophist" is a person who uses sophisms. "Sophistry" means using sophisms for subtly deceptive reasoning or argumentation.
Protagoras