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Sunday, September 7, 2008

Galileo Galilei :The Vatican's Most Illustrious Heretic

By Gabriel Kahn and Andrew Higgins
September 6, 2008

VATICAN CITY – The Roman Catholic Church has for centuries commissioned statues of saints and other pious heroes. It's now wrestling with a more sensitive tribute – a monument to a man who may be its most illustrious heretic.

Nearly 400 years after the Roman Inquisition condemned Galileo Galilei for insisting the Earth revolves around the sun, an anonymous donor to the Vatican's Pontifical Academy of Sciences has offered to foot the bill for a statue of the Italian astronomer.

But nothing that revolves around Galileo is ever simple. He has been making waves since the early 17th century.

Galileo is "like a Mexican soap opera; it never ends," says Monsignor Melchor Sanchez de Toca, of the Vatican's Pontifical Council for Culture.

Vatican officials had hoped to keep the statue project quiet, at least until it got beyond the planning stage. They feared its mystery benefactor – a private company – might get skittish. But word of the bequest leaked to the Italian press.

PR debacle

For the devout, Galileo has always been a sensitive subject. His 1633 trial and conviction by a church tribunal may be the Vatican's biggest public-relations debacle: It cast the scientist as a martyr to truth, the church as the enemy of reason.

Sanchez, who wrote a book about Galileo and the Vatican, thinks a statue would be a "beautiful gesture" and show that faith and science are branches of the same tree.

But he worries it could stir yet another round of finger-pointing. "Everyone will chime in, saying, 'Ah, now the church is saying it's sorry, 400 years too late.' "

Through the centuries, the Vatican has tried to correct its Galileo gaffe. It began to allow some of his works to be published in 1718. It abandoned the last vestiges of its opposition to the idea that the Earth revolves around the sun in 1835, when it removed all works advocating heliocentrism from its index of banned books. Pope John Paul II in 1992 expressed regret over what he called a "tragic mutual incomprehension."

Today, the church insists it has no problem at all with modern science, and even science fiction. In May, for example, the Vatican's chief astronomer declared that Christian theology can accommodate the possible existence of extraterrestrials. The Bible, he said, "is not a science book."

Friend to foe

Galileo and the church initially got on well. Celebrated across Europe for his scientific writings, his development of an early telescope and other achievements, Galileo had many friends in the church, which, when not pursuing heretics, played a big role in nurturing intellectual talent.

Even Cardinal Maffeo Barberini, who would later, as Pope Urban VIII, condemn him, once dedicated a poem to Galileo.

The Inquisition, a network of ecclesiastical tribunals charged with enforcing doctrinal orthodoxy, took issue with some of Galileo's early writings but let him off with a slap on the wrist. But things got more serious following his publication in 1632 of "Dialogue Concerning the Two Chief World Systems."

The text defended the then-novel notion of a sun-centered universe – known as heliocentrism – that had been developed by Poland's Nicolaus Copernicus. This view, according to Vatican doctrine at the time, was "false and altogether contrary to scripture." Galileo's book presented what he considered incontrovertible proof that Copernicus, not the church, was correct.

Summoned to Rome to explain his heliocentric heresy, he eventually agreed to plead guilty to "suspicion of heresy" in exchange for a lighter punishment. Pope Urban VIII, whom he once considered a friend, denounced his "very false and very erroneous" ideas.

He sentenced Galileo to prison for an indefinite period, and his works were placed on the Index of Forbidden Books.

Still, Galileo got off easy compared with many others convicted of defying dogma. He was spared the Inquisition's more grisly punishments – burning and beheading.

In fact, he served out most of his sentence at the villas of Tuscan noblemen. Toward the end of his life, he was allowed to attend Mass again – on condition that he not mingle with other congregants.

For the Vatican, though, the affair went from bad to worse. Denouncing a man Albert Einstein would later describe as the father of modern science put the church on the wrong side of history. And when the Enlightenment dawned in the 18th century, the church found itself branded a backward institution bent on stalling progress.

Galileo became a global icon, the Che Guevara of secular science. The National Aeronautics and Space Administration named a spacecraft after him. Europe did the same with a huge satellite-navigation project.

With the statue, comes a new struggle of where to put it. "That's kind of tough in the Vatican," says Nicola Cabibbo, a physics professor and the president of the Pontifical Academy of Sciences. "You've got a lot of art inside there already. Some of it from great masters. So where do you put a statue of Galileo?"
From: thenazareneway
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date Sun, Sep 7, 2008 at 8:56 AM
subject The Vatican's Most Illustrious Heretic

Saturday, September 6, 2008

In Search if the God Particle:The Large Hadron Collider to be operationalized on Se. 10, 2008


The Large Hadron Collider: End of the world, or God's own particle?


A bewildered Cole Moreton goes in search of the science behind the spin
Sunday, 7 September 2008
The Cern cathedral of science may reveal the universe's secrets, or suck us into a black hole
AP
The Cern cathedral of science may reveal the universe's secrets, or suck us into a black hole
  • Yes, but what is it? That has been many people's reaction to the furore over the Large Hadron Collider, due to be switched on this Wednesday. The biggest, most expensive experiment in history is attracting both scientific hyperbole and hysteria. Some say it will reveal the universe's secrets and lead to the elusive Theory of Everything. A few fear that unleashing unimaginable power beneath the Swiss countryside will result in the end of the world. But how? And what do all these words mean?
Large
Is an understatement. A giant circular tunnel, with several loops, stretches for 27km under the land between France and Switzerland. One of its experimental chambers is bigger than the nave of Westminster Abbey.
Hadron
The name for one of the types of particle that make up an atom. These tiny bits of energy will be propelled by giant magnets around the tunnel circuit at almost the speed of light.
Collide
Is what they will do when they meet other hadrons being beamed in the opposite direction, at the same great speed. The resulting explosion will create 100,000 times more heat than the sun, apparently. Thankfully, it will only happen for a moment, in an area a billion times smaller than a speck of dust.
Cern
Pronounced "sern". The French acronym for the European Organisation for Nuclear Research, which built the £5bn collider. The money came from 20 countries, including Britain, which has played a leading role.
The Big Bang
Is what they are trying to recreate. Or rather what happened a trillionth of a second after the universe was created by an explosion, 13.7 billion years ago. For that tiny moment, it is believed everything was molten plasma. This cooled to create everything we see around us. The hope is that by remaking the moment, in miniature, the scientists will be able to see things that are invisible now.
The God Particle
Big name, very small thing; and the first great discovery they hope to make. It is believed we have only detected a quarter of the particles in everything. We don't, for example, know why things have mass. (To get a feeling for what that is, hit yourself over the head with an inflatable hammer, then a real one. The one that hurts has more mass.) In 1964 Professor Peter Higgs of Edinburgh University predicted an unseen particle that provided mass (its official name is a Higgs boson). The hope is it will be detected for the first time. Other possible revelations include so-called dark matter, which in theory "stretches through space like an invisible skeleton".
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From 
September 7, 2008

Large Hadron Collider could help fight cancer

Stand by for advances in health and climate research as the ‘big bang’ machine starts up

The giant new particle collider at Europe’s centre for nuclear research, which is due to start work on Wednesday, is being linked to spectacular spin-offs including improved cancer treatments, systems for destroying nuclear waste and insights into climate change.
“Everyone is looking at the start up of the Large Hadron Collider [LHC] but Cern has many other research programmes with important practical uses,” said Paul Collier, who runs the main control room at the European Organisation for Nuclear Research (Cern).
The first beams of particles have been successfully fired around nearly half of the 17-mile tunnel in Switzerland, where Cern is based. Linked research has already spurred useful byproducts.
In a typical year, the huge machine, which will smash particles into each other at enormous speed, should generate enough data to fill 56m CDs. That means physicists have had to create a sophisticated system for organising information extremely quickly. The Grid, as they call it, is likely to become the model for many other systems designed to handle large volumes of data.
Another project has suggested a potentially radical new way of dealing with nuclear waste. Cern’s physicists found that firing a beam of protons (a type of sub-atomic particle) into blocks of lead could generate a shower of neutrons (another sub-atomic particle) – and that these could then be used to break down radioactive waste into harmless stable elements.
A Cern spokesman said the technique was being studied by industry. “This technology sprung from insights into matter generated by pure physics,” he said.
Cern has also contributed to medical research, treating cancers with beams of charged particles such as protons, carbon ions and even antimatter.
Antimatter does not exist naturally but Cern can make it using a smaller accelerator, the proton synchrotron. The machine is also involved in generating the protons that will orbit around the LHC. The interest in such beams arises because existing forms of radiation therapy may kill cancers but damage surrounding tissue.
Particle beams could minimise such damage as they can be tuned to pass through healthy tissue and deposit energy only in the tumour.
Cern’s latest research project may prove the most controversial. It is building a laboratory to investigate the theory that the rate of cloud formation in the atmosphere is linked to the level of cosmic rays.
Cloud formation is a vital component of climate and weather, and the project could place Cern at the heart of the debate on whether other factors besides greenhouse gases are involved in climate change.
The researchers will use a proton beam from the proton synchrotron to simulate cosmic rays, firing them into a so-called “cloud chamber” to see whether mini clouds form.
Bob Bingham, professor of physics at Rutherford Appleton Laboratory in Oxfordshire, who is involved with the project, said: “If the beams cause cloud formation it will suggest a link between cosmic rays and climate which has interesting implications.”
On Wednesday scientists will find out whether the LHC’s £3 billion cost has paid off.
In the past few days beams of particles have been fired through three of the LHC’s eight sections, also passing through Alice, and LHCb, two of the four main experiments. Both worked well.
The two other experiments, Atlas and CMS have not seen a beam but appear to be working – as shown by their ability to detect natural cosmic rays.
If Wednesday’s start-up goes smoothly a second beam will be fired into the machine travelling in the opposite direction– with the two forced to collide. The products of those collisions could give physicists their best insight into the structure and origins of the universe.

Milky Way's Super-massive Black Hole

New Virtual Telescope Zooms In On Milky Way's Super-massive Black Hole

ScienceDaily (Sep. 5, 2008) — An international team, led by astronomers at the MIT Haystack Observatory, has obtained the closest views ever of what is believed to be a super-massive black hole at the center of the Milky Way galaxy.

The astronomers linked together radio dishes in Hawaii, Arizona and California to create a virtual telescope more than 2,800 miles across that is capable of seeing details more than 1,000 times finer than the Hubble Space Telescope. The cosmic target of the observations was the source known as Sagittarius A* ("A-star"), long thought to mark the position of a black hole whose mass is 4 million times that of the sun. Though Sagittarius A* was discovered three decades ago, the new observations for the first time have an angular resolution, or ability to observe small details, that is matched to the size of the black hole "event horizon" — the region inside of which nothing, including light, can ever escape.  Continue to read

Friday, September 5, 2008

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Thursday, September 4, 2008

Finger evidence that separates humans from chimps

From The Times
September 5, 2008

Mark Henderson
The human hand, a marvel of evolution that allows our species to use tools with unique dexterity, may owe its origin to changes in a critical genetic switch.

Research has identified passages of DNA that appear to be involved in forming the human thumb and big toe, which are important to the deft grip and upright posture that are among the defining features of Homo sapiens. These areas of the genome have altered markedly since the human family tree branched out from that of chimpanzees about 6 million years ago, and may be among the evolved genetic changes that formed our species.

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