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domenica 7 novembre 2010

Scratch hardness

Scratch hardness is the measure of how resistant a sample is to fracture or plastic (permanent) deformation due to friction from a sharp object. The principle is that an object made of a hard material will scratch an object made of a softer material. The most common test is Mohs scale, which is used in mineralogy. One tool to make this measurement is the sclerometer


Adam and Eve

Genesis 3 introduces the Serpent, "slier than every beast of the field." The serpent tempts the woman to eat from the tree of knowledge, telling her that it will make her more like God and it will not lead to death. She succumbs, and gives the fruit to the man, who eats also, "and the eyes of the two of them were opened." Aware now of their nakedness, they make coverings of fig leaves, and hide from the sight of God. God asks them about what they have done. Adam blames Eve, and Eve blames the serpent. God curses the Serpent and then curses Adam and Eve with hard labor and with pain in childbirth, and banishes them from his garden, setting a cherub at the gate to bar their way to the Tree of Life, "lest he put out his hand ... and eat, and live forever."


Another clear example is the Serpent's Temptation then the Eve's incapacity to resist it.

In other Words...Resistant

Resistant:
blocked, compact, durable, fixed, hard, impenetrable, inflexible, invulnerable, irreducible, massive, permanent, rebel, rigid, rigorous, robust, solid, stationary, stopped, strong, tenacious, tireless.

mercoledì 3 novembre 2010

Honey/Non-Newtonian fluid

A non-Newtonian fluid is a fluid whose flow properties differ in any way from those of Newtonian fluids. Most commonly the viscosity of non-Newtonian fluids is not independent of shear rate or shear rate history. However, there are some non-Newtonian fluids with shear-independent viscosity, that nonetheless exhibit normal stress-differences or other non-Newtonian behavior.


To understand this phenomenon, you can put slowly a spoon in a honey jar, it sinks easily as the honey moves around it/away from it. If you put the spoon in much faster, it seems to almost tense up and is harder to do so.The non-Newtonian fluid is resistant to high impacts but weak to a constant low force, like we can see in the video:



martedì 2 novembre 2010

Italian Resistant Movement

The Italian resistance movement (It. Resistenza) was a partisan force during World War II.
The 1947 democratic Constitution of the Italian Republic declared itself to be "built on the Resistance".The movement was initially composed of independent troops, spontaneously formed by members of political parties previously outlawed by the Fascist regime, or by former officers of the disbanded Royal Army loyal to the monarchy. Later, the Comitato di Liberazione Nazionale (CNL; Committee of National Liberation) created by the Italian Communist Party, the Italian Socialist Party, the Partito d'Azione (a republican liberal party), Democrazia Cristiana and other minor parties took control of the movement, in accordance with King Victor Emmanuel III's ministers and the (then) Allies.
The formations were eventually divided between three main groups, the pro communist Garibaldi Brigades, Giustizia e Libertà Brigades (related to Partito d'Azione), and grego-socialist Matteotti Brigades. Smaller groups included Catholic sympathizers and monarchists (like the Green Flames, Di Dio and Mauri), and some anarchist formations. Relations between the different groups were not always good. For example, in 1945 in Porzûs (in the province of Udine), Garibaldi Brigade partisans under Yugoslav command attacked and killed partisans of the Catholic and azionista Osoppo band. The Garibaldi Brigade partisans claimed that the Catholic and azionista Osoppo band partisans had refused to accept the authority of Josip Broz Tito, the Yugoslavian partisan leader. They were also accused of sharing intelligence with the fascist enemy. This famous fratricide was preceded by several instances where the reverse was true. For example, in the Maritime Alps near Mondovì in autumn 1943 some Communists partisans, fugitive after killing German Army (Wehrmacht Heer) officers in anambush, were traded to the Nazi-Fascists by monarchist military officers from the so called azzurri or badogliani who exerted command there in an uneasy truce with the enemy.
While the largest contingents operated in mountainous districts of the Alps and the Apennine Mountains, there were also large formations in the Po plain; in the main towns of Northern Italy, the Gruppi di azione patriottica (G.A.P., Patriotic Action Groups) regularly carried out acts of sabotage and guerrilla warfare, and the Squadre di azione patriottica (S.A.P., Patriotic Action Squads) arranged massive strike actions and campaigns of propaganda. Not unlike the French Resistance, women were important leaders and couriers both in the armed groups, as well as in the industrial areas.


http://en.wikipedia.org/wiki/Italian_resistance_movement

The Raft of the Medusa

The Raft of the Medusa is an oil painting of 1818–1819 by the French Romantic painter and lithographer Théodore Géricault (1791–1824). Completed when the artist was just 27, the work has become an icon of French Romanticism.
The Raft of the Medusa portrays the moment when, after 13 days adrift on the raft, the remaining 15 survivors view a ship approaching from a distance. According to an early British reviewer, the work is set at a moment when "the ruin of the raft may be said to be complete". The painting is on a monumental scale of 491 × 716 cm (193.3 × 282.3 in), so that most of the figures rendered are life-sized and those in the foreground almost twice life-size, pushed close to the picture plane and crowding onto the viewer, who is drawn into the physical action as a participant.
As
Edmond Burke theorizes the sublime concept, the catastrophism, represents the dichotomy between man and nature, nature is seen as a representation of the divine then the man is a quite manifestation of caducity.



http://en.wikipedia.org/wiki/The_Raft_of_the_Medusa

Star Wars Episode III: Revenge of the Sith

Star Wars is an American epic space opera franchise conceived by George Lucas.
This Episode is the sixth and final film released in the Star Wars saga and the third in terms of the series' internal chronology.
The main theme is the submission of Anakin to the Dark Side, becoming Palpatine's new apprentice, Darth Vader.
We think that the inability of Anakin to resist to the power of the "Dark Side" strongly represents the human Weakness.


http://en.wikipedia.org/wiki/Star_Wars_Episode_III:_Revenge_of_the_Sith