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Arquivo para a ‘Jornais on-line’ Categoria

Black holes and worldview

16 Jul

Until recently the material world comprised only the so-called baryonic matter which is 4% of the only one, which is the material that most people know, with the dark energy and mass appeared the “black holes” that are actually black bodies.
Scientists still believe from Einstein’s theory that black holes suck objects and everything around them, including light itself, now a new phenomenon can change that. This process of sucking is called accretion, so there is a hot plasma that orbits around the black hole and is sucked by accretion, but this can also occur in bodies, and now a body that resists this accretion has been sighted. of accretion body, by the junction of material around it in the process of protoplanet formation.
The GRS1915 + 105 object is actually two stars a black hole (the body whose gravity prevents anything from escaping, hence being called the hungry), and a very modest star for the proportion of the black hole, similar to the sun. If compared to the 13 billion light-years of the observable universe, it is close to the Earth, because it is 40 thousand light-years away, what intrigues is that the black star (the name looks better than a hole) is that the star -star is not sucked though called accretion.
Next to an American laboratory, the star was observed using an ESO (Southern European Observatory) telescope, forming a trio from Germany and Chile that captured the light from the companion star of the black hole and determined to ” technical “:
According to a paper published in Nature, astrophysicist Charles Bailyn of Yale University, USA, said that the calculations are still not very accurate in size, mass and energy: “It is computed using very simple observations and calculations based only on the laws of orbital motion of Kepler, who are already known and have been trusted for centuries. ”
The mass is one of the problem points, in addition to the aspect of the addition, according to Jochen Greiner of the Astrophysical Institute of Potsdam, Germany, one of the authors of the article: “I would be very surprised if the mass was so wrong that theories applied.
By that I mean that I am convinced that theories have missed the mark: “In fact it is already suspected that what we think about mass is something quite different, by the theory of the current relativity, until the particle of Highs and the existence of the black holes they seemed to confirm, since the universe copernican and newtonian were surpassed.
Now if the mass is the one that is measured, and the hole does not suck it, it means that there will be a new worldview, where mass and matter must be re-conceptued.

 

World and the Post 2015´s Agend

11 Jul

When the UN organized its Post 2015 Development Agenda, it appeared that civil society organizations were moving towards a greater focus on poverty and hunger, urban planning and education, nuclear disarmament and women’s empowerment, others subjects related to the person, the struggle for greater perks and powers, the return of nationalism moved in the opposite direction.
UN Secretary-General Ban Ki-moon said in September 2014 “Our world needs more wind and solar energy. But I believe in an even stronger source of energy, people’s power”, the path seemed safe and was not, one can now evaluate the error.
The numbers that preceded the conservative turnaround were still “very unequal” in Latin America, Eduardo Frei affirmed that the Chile that governed from 1994-2000, with several initiatives that promoted democracy and social justice, had reduced poverty by 38.6% to 7.8% of the population, and extreme poverty from 13% to 2.5%, but by 2015 Latin America had another profile, despite GDP growth from 2015 to 2018 (photo above).
It was still a region “more unequal” than another, of its 600 million inhabitants still 167 million lived in poverty and 71 million in extreme poverty, this contrast reveals a dangerous and deep social gap, according to the own Frei in 2015.
Regarding the future, Frei affirms that the struggle against poverty and inequalities demanded another effort on an ethical basis, and at this crossroads, it would be time for governments to give greater impetus to the “moral movement” that did not happen.
Juan Somavia, former Director of the International Labor Organization, said in the post 2015 agenda that a good basis for negotiations would be: “the document reflects an extremely ambitious vision with its 17 goals and 69 indicators centered on the concept of sustainable development focused on people and eradicating poverty, “saying that UN political support was critical.
In 20th birthday of UN Millennium Development Goals (MDGs), which was adopted in 2000, said that the problem of poverty eradication was echoed by the UN’s Economic and Social Council (Ecosoc) : productive employment and social integration have been excluded, and it is not mere coincidence. And social integration is a broader concept when we think of global citizenship.

 

Fraternity, worldview and religion

05 Jul

I do not know the religion of the captain of Sea Watch, but the fraternal worldview of captain Carola Rackete (picture), unjustly imprisoned and brought to trial and released only these days, is undoubtedly the only real manifestation of worldliness in the contemporary world.
The press reported little, the Italian authorities raged against the captain’s “rebellion” to rescue shipwrecks and dock in Lampedusa in Italy, against the determination of the local maritime police, but this is the true brotherhood and religion of seeing all peoples as deserving of the same fraternity and respect.
Captain Rackete has been accused of crimes of resistance or violence against the Italian warship and attempted shipwreck for having collided with a patrol of the Financial Guard (Maritime Police of the Italian borders), and the European newspapers that always boast of any attitude in Latin America or Africa has barely reported Rackete’s arrest.
Yet the old colonialist view of looking disdainfully at the rest of the world, which is not just the American, remains and little look at its crimes and atrocities, especially against other peoples and nations that have a different worldview from Europe.
They do not recognize the penumbra and the blindness that they live, not even the worldview itself is very clear, besides the political and economic interests, little or nothing remains of a respect for other peoples and cultures, and little recognizes the own decadence and crisis of thought.
The arrogance of a limited worldview, despite its origin in Christianity, holds true for much of European thought, it is a fact that there is resistance and protesting groups, to the seemingly fraternal worldview of Europe, that biblical saying about Pharisaism in the time of Jesus , Luke 10: 12: “I tell you that on that day Sodom will be treated less severely than this city,” referring to people who rejected the fraternal Christian message.
Of course, one can only speak of a Christianity with a worldview of respect and true brotherhood with all peoples and cultures, for the rest is Pharisaism and cultural pride.
The contemptuous look at the peoples suffered, exploited and colonized is still stigma of our time, is still the result of a culture of domination and exploitation of peoples and nature.
Sea-Watch captain Rackete speaks after release from house arrest:

 

Michel Serres dies

03 Jun

I get the news in the morning of the 1st. of June working at home, Michel Serres passed away, I remember several things of him that I gave in class for having appreciated by the new technologies and to make analyzes less pessimistic of this aspect.
I also remember his words about Hiroshima, who affirmed it as the sole objective of his philosophy, in the sense of peace, of course, he said that he had no influence from thinkers, but he was guiding nothing less than Bachelard, he lived with Jacques Monod, and did a published interview with Bruno Latour.
In this interview she stated: “it is carnally formed in this atrocious environment and has remained, since then, removed from all politics: power continues to mean only corpses and tortures to it”, the problem of violence has always been its main problem and hence its work .
He did not follow the traditional French epistemology that in his view is based on the separation between “sciences” and “humanities”, his perspective was to create a bridge between one field and another, the primacy of the course on the discourse (see that there is difference) , in short the search for a generalized theory of the place.
He wrote in The Leibniz System: “Through the most distant regions there is often an underground relationship that intuition alone can not attain, nor can immediate knowledge or discursive knowledge, but which can be attained, by a pure and refined formalism … The aptitude to the diverse is proportional to the initial purity.”
Alongside Michel Foucault, in the early days of the University of Vincennes (Paris-VIII) in 1968, he formed a generation of researchers and thinkers who had him as a great teacher.
Among the faceted ones of Serres, the one of historian of the sciences, in “Elements of History of Sciences” (1989) was revealed. Under his direction worked Authier, Isabelle Stender, Bruno Latour and Pierre Lévy, just to mention what is best known in Brazil.
He saw in the new technologies not a curse that cushioned relations, they were dampened by modernity and non-originating knowledge, he affirmed that a new Pedagogical Society is yet to be born.
He said in a prophetic tone, that our communications world is aging, giving birth to a pedagogical society, that of our children, where continuing education will continue for the rest of our lives, an increasingly rare work.
The universities at a distance, everywhere and always present, will replace campuses, closed ghettos for rich adolescents, concentration camps of knowledge … “(SERRES, 1995, p 56).
SERRES, M. The legend of the Angels (in Portuguese), São Paulo: Aleph, 1995.

 

The discovery and the sound of pulsars

04 May

Supernovae are massive explosions of stars that until 1932 did not have many explanations, although they are observed and studied by astronomers.
Walter Brade and Fritz Zwicky sought the explanation when the subatomic particle called neutron was discovered so they understood that the answer was this, a neutron star.
It is a dense nucleus, as if two suns compressed in a space of the region of the great Sao Paulo of Brazil, but the explanation does not end there.
In 1967, the doctoral student Jocelyn Bell, captured in a radio astronomy equipment a weak pulse coming from a part of the sky with extreme precision, the house 1.3 seconds it repeated, it seemed an intentional signal of somebody or of and some civilization thought his counselor, but it was the discovery of pulsars.
Two important consequences of observation: to the extent that this star collapses its rotation increases greatly, and the other, is that collapse carries along with it the magnetic field forming a dense nucleus that spurs an energy beam dense to the space as pulses.
Russian scientists, capturing the flow of 10 pulsars, have created a song that along with other sounds of the universe form a great symphony of the creation and expansion of the universe.
Watch the video made by Russian scientists last month:

 

Poetry, Notre Dame and Ignorance

16 Apr

I was preparing to write something about the first volume of Otto Maria Carpeaux on Western literature, curiously I dwell on the passage: “‘lirism’ is the true name for the divine and human order in the world of Sophocles, symptoms of a precarious balance because purely aesthetic “(Carpeaux, 2012, p. 49), which speaks of lyricism in Sophocles, the fire of Notre Dame robs me of lyricism, and certainly not only aesthetic but historical.
Certainly there will be some who think that they are stones and museums, the little appreciation for the religious question touches me, but I understand, but no appreciation for history, the first arches that extended the ceiling of the Gothic cathedrals, an engineering work that lasted almost 300 years, that used various styles of architecture that could be reviewed and understood, etc.
There is militant ignorance, appeals to practice, objectivism (which robs any lyrical or poetic possibility), what Byung Chull Han calls the culture of the “smooth”, flat, without wrinkles or details, which wants to abolish any environment, enhances or poetic license, the “challenge” culture.
I saw the works of Gaudi in Barcelona the contemporary opposite of the culture of the flat, a poetry, lyricism and a mystique made of stone as he intended, the internal lights of the Sagrada Familia are a spectacle to the part, it is not the digital that abolished this, much before modern objectivism.
Ignorance beyond questioning any concept, philosophy or theory, in addition to a pseudo appeal to practice, objectivity or any other argument, in fact without good method none of this can be successfully achieved, this ignorance has become militant and I wonder if would not be able to destroy mankind’s patrimony.
The Islamic State did this in Palmyra, but do not we do the same in our instrumentalizing, ideologized and militant practice, in fact, there is today a militious ignorance.
I want to imagine that the fire of Notre Dame was not a criminal, because it does the same thing as terrorism by destroying history, culture and the possibility of future generations understanding the long road that humanity has gone through, it is not possible to have a promising future by ignoring the past, not only the deeds, but also the mistakes and misunderstandings.
I accept this momentary death, this is my easter and easter of history, but I believe in future and in the culture.

 

Notre Dame on fire

15 Apr

Today the Notre Dame was been on fire in enourmous proportions. 
The present church was built in the year 1163, when the Romanesque church there was demolished because Bishop Maurice de Sully considered it unworthy of values and the technical innovations allowed new daring forms and arches and ceilings were erected.
The church of Notre Dame, which stands for Our Lady [and one of the oldest of the Gothic style, and the long process of construction that lasted until the mid-fourteenth century, and the various architects who participated in the construction justifies the stylistic differences present.
During the French Revolution several elements of the church were stolen, ending the space itself by serving as a warehouse for food, but Victor Hugo incorporated to it a romantic spirit and inclusion, the novel The Hunchback of Notre Dame in 1831.
There are indications that the Celts would have celebrated ceremonies there and later the Romans would have made a temple of devotion to the god Jupiter, and still there would have existed one of the first churches of Christianity in Paris: the Basilica of Saint-Etienne, designed by Quildebert I by around 528 AD.
The fire destroys a patrimony of humanity, a historical document and the reconstruction will hardly maintain the original originality, is a great loss for the history.
In live now NBC News has a documentar about this:

https://www.nbcnews.com/video/watch-live-notre-dame-cathedral-in-paris-on-fire-1493982275799

 

The first image of the Black Hole

11 Apr

But in reality it is much more than that, and the proof of the theory of relativity, the variation of space and time (considered absolute in modernity), with the supermacious black hole photo, in the Center of The M87 Galaxy was unveiled on Wednesday at six simultaneous press conferences in Brussels, Washington, Santiago, Shanghai, Taipei and Tokyo.
It is the result of a decade of effort, made in five countries by the members of the EHT’s Collaboration of the Horizon of Events (EHT), and the imaging was done by telescopes connected to satellites in various parts of the earth see figure) to compose the image. But a black hole does not emit light, what was the photographer then-what does the image show at all? its shadow that it causes in its bright neighborhood, these rays of light in the surroundings deviated and distorted by its intense gravitational field form the reddish tones.
At its frontier happens a horizon of events, marking the points where even the light gets sucked out of gravity, is 2.5 times smaller than the shadow projects it, and yet measures 40 billion km from one side to the other, being this called Monster.
A 29-year-old scientist was important in the team of 30 researchers who helped compose the image, she is Katherine Bouman, a postdoctoral student at the Harvard-Smithsonian Center for Astrophysics and developed the algorithm for imaging.
The explanation of black holes is in video follow:

 

A Relaxed History of Philosophy

08 Apr

Among the books I promised to read (post), Nigel Warburton’s Brief History of Philosophy (L & PM Pocket, 2017) was the first, had other priorities.

It is a relaxed and cheerful way of reading philosophy, it has the advantage of being easy for readers who are not initiated, but in my view lack some depth and some authors, just to name two Husserl and Heidegger, however the rest of the set is consistent.

It begins properly with Plato and Socrates, with the suggestive and philosophical title “The Man Who Asked” and from the beginning makes the reader reason to show the difference between being immoral and deceitful in a dialogue between Socrates and Euthydemus, which shows the reader the importance concepts and dialogue as a method of educating.

He will explain in a dialogue with Queroponte that when asking an old wise woman an oracle of Delphi, if there was someone wiser than Socrates receives the answer “No” and will say it to Socrates, who wonders about the fact since “I knew so little.”

He thus clarifies what philosophy is, as “love of wisdom” and from there his disciple will leave (in fact only Socrates is known by Plato), say that the wise should rule, and this will be how the Platonic school will begin, and then more later that of his disciple Aristotle.

The chapter of Aristotle has the title “The true happiness”, a curious and intelligent trait of Warburton that is to give soon in the title a key of reading, again which is simplistic, but it helps the reader and creates an interest in the subject.

The third that I comment on here, also a wise choice, is Pyrrhus, for he was the most skeptical of that time (365 BC), which is important for opposing dogmatism.

It is possible to elect this author because avoiding too much reading, which few people do today, is able to teach lay readers in the subject, for this is seen as popularizer of the philosophy.

 

My first contact with Gaudi

18 Mar

Antonio Gaudi i Cornet (1852-1926), the artist, architect and mystic would only impress us if we walked through his work, felt his “aroma”, everything I read in the books was below, because this, it is my first contact. 

It was a strategic decision to see Gaudi in Barcelona from the outside in, the last thing on the first day was to see his main work The Holy Family, in his heart, is not always open to the public, in our case for a mass: in the crypt.
The next day was to stroll along the quay and the places where Gaudi went, we also passed the corner where the tram (electric in Portugal) ran over him, he was incognito days until they recognized him and on the third day he passed away.
I passed quickly, but Casa Vicens (1883-1888) is a summer house designed by Gaudi, commissioned by the owner of a brick and tile factory, Manuel Vicens, who from this 2016 became a museum open to the public, marks his style in transition.
The first works of his that I went to see the next day were the public lamp in the Plaza, a work of his youth, and then the Casa Batlló, made from 1904 to 1906, after the Casa Milà (foto) with the company of a friend Javier explained the futurism of work with space for lights and air inside the building, and the contours lowered at the tip, so as not to overshadow the architecture of the building next door.
After going through several other works we went to the Sagrada Familia, whose project is being finished by other architects respecting the ideas of Gaudi, began in 1883 and made until the day that was run over.
The images are all outside, it is a true Bible school (he said he would do a catechesis of stone and did it), and inside the lights and the sound of the tube organs (they seemed to me two, I did not confirm), they seem be a whole temple to pray, as it was defined “expiatory temple”, but I prefer even the Cathedral of the Holy Family.
From 1984 to 2005, seven of his works were classified as World Heritage by UNESCO and his Catholic devotion that intensified during his life, street work rich in imaginary and even say in the in religious imaginary, now the catholic church thinks in his beatification.