El papa afirma que teoría del Big Bang y la intervención de Dios no se contradicen

Senza categoria

El papa Francisco afirmó que la teoría científica del Big Bang sobre el origen del Universo “no se contradice con la intervención de Dios, sino que la exige” y que “el principio del mundo no es obra del caos”.

Sorgente: El papa afirma que teoría del Big Bang y la intervención de Dios no se contradicen

Annunci

Papa Francesco: poveri non possono aspettare, no a carestia della carità

Senza categoria
PAPA

Così il pontefice si è rivolto ai Guanelliani oggi in Vaticano

September 20 2015 : Pope Francis during an encounter with youths outside a cultural center in Havana, Cuba.  -  ©ALESSIA GIULIANI/CPP

©ALESSIA GIULIANI/CPP

 “Dio è padre e non riesce a non amarci”, la “più grande carestia è quella della carità”. Sono due passaggi del discorso che Papa Francesco ha rivolto ai Guanelliani, ricevuti in Vaticano in occasione di un pellegrinaggio a Roma per il centenario della morte di San Luigi Guanella. Il Pontefice, nel suo intervento, ha più volte citato il santo, esortando a seguire il suo esempio per i più bisognosi, perché – era solito dire – “la miseria non può aspettare”.

Cosa vi direbbe il vostro fondatore, San Luigi Guanella? Papa Francesco ha esordito così il suo discorso alla famiglia dei Guanelliani ed ha osservato che Don Guanella avrebbe sicuramente usato “la sua semplicità schietta e genuina”. Quindi, ha sviluppato il suo intervento intorno a tre verbi concreti: “fidarsi, guardare e affrettarsi”.

Don Guanella ha creduto all’amore senza limiti di Dio
La vita di Don Guanella, ha detto, “ha avuto al centro la certezza che Dio è Padre misericordioso e provvidente”. Questo, ha soggiunto, “era per lui il cuore della fede: sapersi figlio sempre amato, di cui il Padre si prende cura”:

“Dio è padre e non riesce a non amarci. Nemmeno è capace di stare lontano dai suoi figli. Se siamo distanti da Lui, veniamo attesi; quando ci avviciniamo, siamo abbracciati; se cadiamo, ci rialza; se siamo pentiti, ci perdona. E desidera sempre venirci incontro. San Luigi ha tanto creduto in questo amore concreto e provvidente del Padre, da avere spesso il coraggio di superare i limiti della prudenza umana, pur di mettere in pratica il Vangelo”.

Non prendere le distanze da Dio, è Padre non padrone
Per Don Guanella, ha ripreso, la Provvidenza “non era unapoesia, ma la realtà. Dio ha cura di noi e vuole che ci fidiamo di Lui”. “Penso – ha detto Francesco – che il Padre celeste sia molto dispiaciuto, quando vede che i suoi figli non si fidano pienamente di Lui: credono forse a un Dio lontano, più che nel Padre misericordioso”. Sorge così il dubbio, in tanti, che “Dio, pur essendo Padre, sia anche padrone”. Ma questo, ha avvertito, “è un grande inganno”:

“E’ l’inganno antico del nemico di Dio e dell’uomo, che camuffa la realtà e traveste il bene da male. È la prima tentazione: prendere le distanze da Dio, intimoriti dal sospetto che la sua paternità non sia davvero provvidente e buona. Dio è invece soltanto amore, puro amore provvidente. Egli ci ama più di quanto amiamo noi stessi e sa qual è il nostro vero bene”.

L’amore del prossimo è il conforto della vita
Il secondo verbo, ha detto, è guardare. Il Padre creatore, ha affermato, “suscita anche la creatività in coloro che vivono come suoi figli”. E così imparano “a guardare il mondo con occhi nuovi, resi più luminosi dall’amore e dalla speranza”. A questo sguardo, ha rilevato, “gli altri non appaiono come ostacoli da superare, ma come fratelli e sorelle da accogliere”. Si scopre così, come disse Don Guanella, che “l’amore del prossimo è il conforto della vita”:

“Nel mondo non mancano mai i problemi e il nostro tempo conosce purtroppo nuove povertà e tante ingiustizie. Ma la più grande carestia è quella della carità: servono soprattutto persone con occhi rinnovati dall’amore e sguardi che infondano speranza. Perché “l’amore farà trovare modi e discorsi per confortare chi è debole”, diceva ancora il vostro fondatore”.

Poveri figli prediletti, la più grande carestia è quella della carità
A volte, ha constatato, “la nostra vista spirituale è miope, perché non riusciamo a guardare al di là del nostro io”. Altre volte, ha proseguito, “siamo presbiti: ci piace aiutare chi è lontano, ma non siamo capaci di chinarci verso chi vive accanto a noi”. Talvolta, invece, “preferiamo chiudere gli occhi, perché siamo stanchi, sopraffatti dal pessimismo”. Don Guanella, invece, “ci invita ad avere lo stesso sguardo del Signore: uno sguardo che infonde speranza e gioia”. Francesco ha infine parlato dell’affrettarsi, parlando in particolare dei poveri:

“I poveri sono i figli prediletti” del Padre, diceva san Luigi, che amava ripetere: “chi dà ai poveri, presta a Dio”. Come il Padre è delicato e concreto nei riguardi dei figli più piccoli e deboli, così anche noi non possiamo far attendere i fratelli e le sorelle in difficoltà, perché – sono sempre parole di Don Guanella – “la miseria non può aspettare. E noi non possiamo fermarci fino a quando ci sono poveri da soccorrere!”

“La Madonna – ha concluso – si affrettò per raggiungere la cugina Elisabetta (cfr Lc 1,39). Anche noi, è stata la sua esortazione, “ascoltiamo l’invito dello Spirito ad andare subito incontro a chi ha bisogno delle nostre cure e del nostro affetto”, perché, come insegnava San Luigi Guanella, “un cuore cristiano che crede e che sente non può passare davanti alle indigenze del povero senza soccorrervi”.

QUI L’ARTICOLO ORIGINALE

Senza categoria

IN FOCUS
Why Shroud of Turin’s Secrets Continue to Elude Science
As the venerated relic goes on public exhibition, its origin remains a mystery wrapped in an enigma.

Nuns at a convent in Turin, Italy, unroll a cherished copy of the shroud made in 1644. Unlike this painted version, the original shroud shows no evidence of artificial pigments.
PHOTOGRAPH BY MARCO ANSALONI
By Frank Viviano, National Geographic
PUBLISHED APRIL 17, 2015
The 53-square-foot rectangle of linen known as the Shroud of Turin is one of the most sacred religious icons on Earth, venerated by millions of Christians as the actual burial garment of Jesus Christ.
It is also among the most fiercely debated subjects in contemporary science, an extraordinary mystery that has defied every effort at solution.

Over the 117 years since a photographic negative of the linen unexpectedly revealed the image of a tortured body, ranks of physicists and chemists have weighed in on the fabric’s age and the image’s composition. Forensic pathologists, microbiologists, and botanists have analyzed its bloodstains, along with specks of dirt and pollen on its surface. Statisticians have combed through mountains of data.

The sum result is a standoff, with researchers unable to dismiss the shroud entirely as a forgery, or prove that it is authentic. “It is unlikely science will provide a full solution to the many riddles posed by the shroud,” Italian physicist Paolo Di Lazzaro, a leading expert on the phenomenon, told National Geographic. “A leap of faith over questions without clear answers is necessary—either the ‘faith’ of skeptics, or the faith of believers.”

On April 19, the shroud goes on public display at Turin’s cathedral for seven weeks, its longest exhibition in modern history.
To readers of the New Testament gospels, the mysterious man of the shroud evokes the slain Christ, complete with signs of scourging, crucifixion, and puncture wounds caused by a crown of thorns.
PHOTOGRAPH BY FRANCOIS LEDIASCORN, GAMMA-RAPHO, GETTY IMAGES
The Scientific Record
Scientific inquiry into the shroud began in 1898, with the startling image captured by Italian amateur photographer Secondo Pia. Under normal conditions, only the vague sepia blur of a human body appears on the fabric. But when Pia examined the reverse negative of his photographic plate in the darkroom, he discovered the detailed likeness of a bearded man with visible wounds on his body.

For seven decades, indirect analyses of the image were conducted by researchers, most aimed at determining whether it had been painted onto the linen or produced through contact with a human corpse. It wasn’t until 1969 that scientists were allowed to examine the fabric directly, with the task of advising on preservation techniques and future testing. This set the scene for the establishment of the U.S.-led Shroud of Turin Research Project (STURP), which was granted an unprecedented five days of continuous access to the shroud itself in 1978.

The project’s 33 members ran the gamut of scientific disciplines, and their credentials included high-level posts at 20 major research institutions. They arrived in Turin with seven tons of equipment and worked in shifts 24 hours a day. An associate team of European scientists acted as expert observers.

Their analyses found no sign of artificial pigments. “The Shroud image is that of a real human form of a scourged, crucified man. It is not the product of an artist,” the project’s 1981 report declared. “The blood stains are composed of hemoglobin and also give a positive test for serum albumin.” But the report also conceded that no combination of “physical, chemical, biological or medical circumstances” could adequately account for the image.

The Shroud of Turin, the STURP team concluded, “remains now, as it has in the past, a mystery.”
The Carbon-14 Bombshell
In 1988, the Vatican authorized carbon-14 dating of the shroud. Small samples from a corner of its fabric were sent to labs at the University of Oxford’s Radiocarbon Accelerator Unit (RAU), the University of Arizona, and the Swiss Federal Institute of Technology. All three found that the shroud material dated to the years between 1260 and 1390, more than a millennium after the life and death of the historical Jesus.

Marks on the Shroud of TurinClick the icons for more information.
DamageInterpretation of stainsNG STAFF
PHOTO BY FINE ART IMAGES/HERITAGE IMAGES/GETTY IMAGES
The labs assessed the reliability of their estimate at 95 percent. To make the case even more convincing, the dates closely coincided with the first documented appearance of the Shroud of Turin in 1353.

Since their release 27 years ago, the carbon-14 dating results have become the focal point of the shroud controversy, with a stream of critics taking aim at its methodology and conclusions.

Among the most innovative critiques were those published in 2010 by statisticians Marco Riani, of the University of Parma in Italy, and Anthony Atkinson, of the London School of Economics. In a recent interview with National Geographic, they noted that the laboratories conducting the carbon-14 tests were in full agreement on the ages of control fabrics from an ancient Egyptian mummy, a medieval Nubian tomb, and a medieval French ecclesiastical vestment. Yet raw data from the same tests on the shroud yielded results that differed by more than 150 years.

The published carbon-14 findings were the mean results drawn from the combined data of the three labs. It was assumed that the data were “homogeneous”—near-identical age estimates based on repeated measurements of the samples, each of which had been divided into four segments for testing.

But when computers crunched through all 387,072 ways to cut the samples, they identified a marked pattern of variations. “The dating which comes from a piece at the top edge [of an uncut sample] is very different from the date which comes from a piece taken from the bottom edge,” Riani explains.

“Our research does not prove that the shroud is authentic, nor that it is 2,000 years old,” he cautions. But it does call into question the carbon-14 report’s assertion of “conclusive evidence that the linen of the Shroud of Turin is medieval.”

The Oxford lab insists that the 1988 conclusions were accurate, and rejects arguments that the test samples were flawed.
The Question of Questions
Looming above all other issues is what physicist Paolo Di Lazzaro calls “the question of questions”: how the image was produced, regardless of its age. Every scientific attempt to replicate it in a lab has failed. Its precise hue is highly unusual, and the color’s penetration into the fabric is extremely thin, less than 0.7 micrometers (0.000028 inches), one-thirtieth the diameter of an individual fiber in a single 200-fiber linen thread.

SEE RELATED STORY
Il viaggio della Sindone
Di Lazzaro and his colleagues at Italy’s National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) conducted five years of experiments, using state-of-the-art excimer lasers to train short bursts of ultraviolet light on raw linen, in an effort to simulate the image’s coloration. The ENEA team, which published its findings in 2011, came tantalizingly close to approximating the image’s distinctive hue on a few square centimeters of fabric. But they were unable to match all the physical and chemical characteristics of the shroud image. Nor could they reproduce a whole human figure.

Picture of Church of the Holy Sepulchre
Visitors to Jerusalem’s Church of the Holy Sepulchre gather around the Stone of Anointing, held by church tradition to be the spot where Christ’s body was prepared for burial.
PHOTOGRAPH BY MARCO ANSALONI
The ultraviolet light necessary to do so “exceeds the maximum power released by all ultraviolet light sources available today,” says Di Lazzaro. It would require “pulses having durations shorter than one forty-billionth of a second, and intensities on the order of several billion watts.”

If the most advanced technologies available in the 21st century could not produce a facsimile of the shroud image, he reasons, how could it have been executed by a medieval forger?

For believers, the radiation thesis suggests that a “divine light” in the tomb might have seared the crucified form of Jesus Christ onto the shroud. “One could look at hypotheses outside the realm of science, a sort of miracle,” says Di Lazzaro. “But a miracle cannot be investigated by the scientific method.”

Picture of 3-dimensional reproduction of the sacred linen
A life-size reproduction of the shroud at a Turin museum has been photographically enhanced. The actual image appears as faint as an apparition.
PHOTOGRAPH BY MARCO ANSALONI

Historical Backdrop
References to various “divine images” of Christ, some explicitly described as burial sheets, reach back 15 centuries. Whether or not any was the linen known today as the Shroud of Turin is uncertain. The history is clearer after 1353, when a French knight, Geoffroi de Charny, acquired the shroud and deposited it at a monastery in Lirey, France, 130 miles east of Paris. By the early 16th century, it had been moved to the city of Chambéry, where it was damaged by a fire in 1532, leaving scorch marks and water stains that are still visible on the fabric. Its owner by then was the aristocratic House of Savoy.

In 1578, the Savoys moved the shroud to their capital, Turin. It has been there ever since, housed in the royal chapel of the Cathedral of Saint John the Baptist. In 1983, it was legally turned over to the Catholic Church.

The Vatican takes no official position on the shroud’s authenticity, although it encourages the faithful to venerate it as a symbol of Christ’s suffering. As Pope John Paul II put it in 1998, “The Church entrusts to scientists the task of continuing to investigate.”