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Vatican’s Celestial Eye, Seeking Not Angels but Data
By GEORGE JOHNSON, The New York Times, June 23, 2009
MOUNT GRAHAM, Ariz. — Fauré’s “Requiem” is playing in the background, followed by the Kronos Quartet. Every so often the music is interrupted by an electromechanical arpeggio — like a jazz riff on a clarinet — as the motors guiding the telescope spin up and down. A night of galaxy gazing is about to begin at the Vatican’s observatory on Mount Graham.
“Got it. O.K., it’s happy,” says Christopher J. Corbally, the Jesuit priest who is vice director of the Vatican Observatory Research Group, as he sits in the control room making adjustments. The idea is not to watch for omens or angels but to do workmanlike astronomy that fights the perception that science and Catholicism necessarily conflict.
Last year, in an opening address at a conference in Rome, called “Science 400 Years After Galileo Galilei,” Cardinal Tarcisio Bertone, the secretary of state of the Vatican, praised the church’s old antagonist as “a man of faith who saw nature as a book written by God.” In May, as part of the International Year of Astronomy, a Jesuit cultural center in Florence conducted “a historical, philosophical and theological re-examination” of the Galileo affair. But in the effort to rehabilitate the church’s image, nothing speaks louder than a paper by a Vatican astronomer in, say, The Astrophysical Journal or The Monthly Notices of the Royal Astronomical Society.
On a clear spring night in Arizona, the focus is not on theology but on the long list of mundane tasks that bring a telescope to life. As it tracks the sky, the massive instrument glides on a ring of pressurized oil. Pumps must be activated, gauges checked, computers rebooted. The telescope’s electronic sensor, similar to the one in a digital camera, must be cooled with liquid nitrogen to keep the megapixels from fuzzing with quantum noise.
As Dr. Corbally rushes from station to station flicking switches and turning dials, he seems less like a priest or even an astronomer than a maintenance engineer. Finally when everything is ready, starlight scooped up by the six-foot mirror is chopped into electronic bits, which are reconstituted as light on his video screen.
“Much of observing these days is watching monitors and playing with computers,” Dr. Corbally says. “People say, ‘Oh, that must be so beautiful being out there looking at the sky.’ I tell them it’s great if you like watching TV.”
Dressed in blue jeans and a work shirt, he is not a man who wears his religion on his sleeve. No grace is offered before a quick casserole dinner in the observatory kitchen. In fact, the only sign that the Vatican Advanced Technology Telescope is fundamentally different from the others on Mount Graham, the home of an international astronomical complex operated by the University of Arizona, is a dedication plaque outside the door.
“This new tower for studying the stars has been erected on this peaceful site,” it says in Latin. “May whoever searches here night and day the far reaches of space use it joyfully with the help of God.” At that point, religion leaves off and science begins.
The Roman Catholic Church’s interest in the stars began with purely practical concerns when in the 16th century Pope Gregory XIII called on astronomy to correct for the fact that the Julian calendar had fallen out of sync with the sky. In 1789, the Vatican opened an observatory in the Tower of the Winds, which it later relocated to a hill behind St. Peter’s Dome. In the 1930s, church astronomers moved to Castel Gandolfo, the pope’s summer residence. As Rome’s illumination, the electrical kind, spread to the countryside, the church began looking for a mountaintop in a dark corner of Arizona.
Building on Mount Graham was a struggle. Apaches said the observatory was an affront to the mountain spirits. Environmentalists said it was a menace to a subspecies of red squirrel. There were protests and threats of sabotage. It wasn’t until 1995, three years after the edict of Inquisition was lifted against Galileo, that the Vatican’s new telescope made its first scientific observations.
The target tonight is three spiral galaxies — Nos. 3165, 3166, 3169 in the New General Catalog — lying about 60 million light-years from Earth, a little south of the constellation Leo. Sitting at a desk near Dr. Corbally is Aileen O’Donoghue, an astronomer from St. Lawrence University in Canton, N.Y., who is interested in how these gravitational masses tug at one another, creating the stellar equivalent of tides.
“Exposing, 30 minutes,” she says. As Celtic ballads play in the control room, data is sucked up by hard drives, and a column of numbers scrolls down her computer screen. Dr. O’Donoghue, who was raised Roman Catholic, is the author of “The Sky Is Not a Ceiling: An Astronomer’s Faith,” in which she describes how she lost and then rediscovered God “in the vastness, the weirdness, the abundance, the seeming nonsensicalness, and even the violence of this incredible universe.”
In person she’s not nearly so intense. While waiting for an image to gel, she steps out on a balcony for a look at the unprocessed sky. The Beehive Cluster, one of the first things Galileo saw with his telescope, is sparkling in the constellation Cancer. Next to it is Leo, where Dr. O’Donoghue is looking for the gravitational tides.
“It’s the real sky that matters,” she says. She describes how she makes her undergraduate students go outside and look at the Big Dipper at different times of the night. “They come back and say, ‘It moves!’ ” — words Galileo legendarily muttered after he was forced to recant. “You can tell students that the Earth rotates, but until they see that with their eyeballs, they’re not doing science,” she said. “You might as well be teaching theology and Scripture.”
Back inside the control room she explains how the gravitational tides she is studying might be stellar nurseries. As one galaxy brushes by another, clouds of gas are stirred so violently that they give birth to stars.
In the Vatican Observatory’s annual report, at the point where a corporation might describe its business strategy, is a section delineating the difference between creatio ex nihilo (creation from nothing) and creatio continua: “the fact that at every instant, the continued existence of the universe itself is deliberately willed by God, who in this way is continually causing the universe to remain created.”
Theologians call these “primary causes,” those that flow from the unmoved mover. Sitting atop this eternal platform is another layer, the “secondary causes,” which can be safely left to science.
Dr. Corbally and Dr. O’Donoghue continue working through the night, collecting data on secondary causes — galactic tides, stellar birth. Sleep will wait until morning, and thoughts about primary causes for another time.
Flutes Offer Clues to Stone-Age Music
By JOHN NOBLE WILFORD, The New York Times, June 25, 2009
At least 35,000 years ago, in the depths of the last ice age, the sound of music filled a cave in what is now southwestern Germany, the same place and time early Homo sapiens were also carving the oldest known examples of figurative art in the world.
Music and sculpture — expressions of artistic creativity, it seems — were emerging in tandem among some of the first modern humans when they first began spreading through Europe or soon after.
Archaeologists reported Wednesday the discovery last fall of a bone flute and two fragments of ivory flutes that they said represent the earliest known flowering of music-making in Stone Age culture. They said the bone flute with five finger holes, found at Hohle Fels Cave in the hills west of Ulm, was “by far the most complete of the musical instruments so far recovered from the caves” in a region where pieces of other flutes have been turning up in recent years.
A three-hole flute carved from mammoth ivory was uncovered a few years ago at another cave, as well as two flutes made from wing bones of a mute swan. In the same cave, archaeologists also found beautiful carvings of animals.
But until now the artifacts appeared to be too rare and not as precisely dated to support wider interpretations of the early rise of music. The earliest solid evidence of music instruments had previously come from France and Austria, but dated well after 30,000 years ago.
In an article published online by the journal Nature, Nicholas J. Conard of the University of Tübingen, in Germany, and colleagues wrote, “These finds demonstrate the presence of a well-established musical tradition at the time when modern humans colonized Europe.”
Although radiocarbon dates earlier than 30,000 years ago can be imprecise, samples from the bones and associated material were tested independently by two laboratories, in England and Germany, using different methods. Scientists said the data agreed on ages of at least 35,000 years old.
Dr. Conard, a professor of archaeology, said in an e-mail message from Germany that “the new flutes must be very close to 40,000 calendar years old and certainly date to the initial settlement of the region.”
Dr. Conard’s team said that an abundance of stone and ivory artifacts, flint-knapping debris and bones of hunted animals were found in the sediments with the flutes. Many people appeared to have lived and worked there soon after their arrival in Europe, assumed to be around 40,000 years ago and 10,000 years before the native Neanderthals were to become extinct.
The Neanderthals, close human relatives, apparently left no firm evidence of having been musical.
The most significant of the new artifacts, the archaeologists said, was a flute made from a hollow bone of a griffon vulture, skeletons of which are often found in these caves. The preserved portion is about 8.5 inches long and includes the end of the instrument into which the musician blew. The maker had carved two deep, V-shaped notches there, and four fine lines near the finger holes. The other end appears to be broken off; judging by the typical length of these bird bones, two or three inches are missing.
Dr. Conard’s discovery in 2004 of the seven-inch, three-holed ivory flute at the Geissenklösterle cave, also near Ulm, inspired him to widen his search of caves, saying at the time that southern Germany “may have been one of the places where human culture originated.”
Friedrich Seeberger, a German specialist in ancient music, reproduced the ivory flute in wood. Experimenting with the replica, he found that the ancient flute produced a range of notes comparable in many ways to modern flutes. “The tones are quite harmonic,” he said.
A replica is yet to be made of the recent discovery, but the archaeologists said they expected the five-hole flute with its larger diameter to “provide a comparable, or perhaps greater, range of notes and musical possibilities.”
Meanwhile, Dr. Conard began this week a new season of exploration at Hohle Fels Cave. “We’ll see how it goes,” he said by e-mail. “I never have expectations. One never finds what one is looking for, but one normally finds something interesting.”
Archaeologists and other scholars can only speculate as to what moved these early Europeans to make music.
It so happens, as Dr. Conard and his co-authors, Susanne C. Münzel of Tubingen and Maria Malina of the Heidelberg Academy of Sciences, noted, the Hohle Fels flute was uncovered in sediments a few feet away from the carved figurine of a busty, nude woman, also around 35,000 years old. The discovery was announced in May by Dr. Conard.
Was this evidence of happy hours after the hunt? Fertility rites or social bonding? The German archaeologists suggested that music in the Stone Age “could have contributed to the maintenance of larger social networks, and thereby perhaps have helped facilitate the demographic and territorial expansion of modern humans.”
Obesity May Have Offered Edge Over TB
By RONI CARYN RABIN, The New York Times, June 24, 2009
Over the course of human evolution, people with excess stores of fat have been more likely to survive famines, many scientists believe, living on to pass their genes to the next generation.
But these days, obesity is thought to be harmful, leading to chronic inflammation and metabolic disorders that set the stage for heart disease. So what went awry? When did excess fat stop being a protective mechanism that assured survival and instead become a liability?
A provocative new hypothesis suggests that in some people, fat not only stores energy but also revs up the body’s immune system. This subgroup may have enjoyed a survival advantage in the 1800s, when people were plagued by a disease that decimated Europe: tuberculosis.
By some estimates, tuberculosis has killed more than one billion people, eclipsing both the bubonic plague and the Spanish flu.
But the heightened immune response that helped some overweight adults survive tuberculosis is now an “evolutionary anachronism” that has outlived its usefulness, said Dr. Jesse Roth, who outlined the idea this week in The Journal of the American Medical Association.
“Fat is not simply a collection of calories, it is acting like a part of the innate immune system,” said Dr. Roth, an investigator at the Feinstein Institute for Medical Research in Manhasset, N.Y. “But this immune system has a downside.”
“We are paying a price for a highly activated defense system that’s now pretty obsolete,” he added.
The idea has been greeted with some skepticism. It fails to explain why obesity is rampantly increasing, several experts said, and it does not provide a framework for resolving the epidemic.
Yet the question Dr. Roth tries to answer has baffled scientists. The “thrifty gene” hypothesis suggests that evolution favored those who could store fat reserves that helped them withstand lean times, like periodic famines and food shortages.
But that does not explain why body fat carries so many drawbacks, setting off inflammation and metabolic disorders like insulin resistance, high cholesterol and atherosclerosis.
Visceral fat, which is stored in the abdomen, tends to cause more inflammation than subcutaneous fat, which is stored closer to the skin, on the arms and legs. It is possible that survival during the tuberculosis era favored those who stored excess visceral fat, Dr. Roth said.
Dr. Anthony S. Fauci, director of the National Institute of Allergy and Infectious Diseases, called Dr. Roth’s explanation “very, very hypothetical.”
“His hypothesis,” Dr. Fauci said, “is that if so many people have this propensity — not just for obesity, but for the inflammatory response and atherosclerosis that generally goes along with the tendency to be obese — they must have been selected evolutionarily.”
But people rarely lived long enough to develop heart disease in earlier centuries, he said, adding, “The long-range negative effects of this genetic propensity would rarely be seen.”
By GEORGE JOHNSON, The New York Times, June 23, 2009
MOUNT GRAHAM, Ariz. — Fauré’s “Requiem” is playing in the background, followed by the Kronos Quartet. Every so often the music is interrupted by an electromechanical arpeggio — like a jazz riff on a clarinet — as the motors guiding the telescope spin up and down. A night of galaxy gazing is about to begin at the Vatican’s observatory on Mount Graham.
“Got it. O.K., it’s happy,” says Christopher J. Corbally, the Jesuit priest who is vice director of the Vatican Observatory Research Group, as he sits in the control room making adjustments. The idea is not to watch for omens or angels but to do workmanlike astronomy that fights the perception that science and Catholicism necessarily conflict.
Last year, in an opening address at a conference in Rome, called “Science 400 Years After Galileo Galilei,” Cardinal Tarcisio Bertone, the secretary of state of the Vatican, praised the church’s old antagonist as “a man of faith who saw nature as a book written by God.” In May, as part of the International Year of Astronomy, a Jesuit cultural center in Florence conducted “a historical, philosophical and theological re-examination” of the Galileo affair. But in the effort to rehabilitate the church’s image, nothing speaks louder than a paper by a Vatican astronomer in, say, The Astrophysical Journal or The Monthly Notices of the Royal Astronomical Society.
On a clear spring night in Arizona, the focus is not on theology but on the long list of mundane tasks that bring a telescope to life. As it tracks the sky, the massive instrument glides on a ring of pressurized oil. Pumps must be activated, gauges checked, computers rebooted. The telescope’s electronic sensor, similar to the one in a digital camera, must be cooled with liquid nitrogen to keep the megapixels from fuzzing with quantum noise.
As Dr. Corbally rushes from station to station flicking switches and turning dials, he seems less like a priest or even an astronomer than a maintenance engineer. Finally when everything is ready, starlight scooped up by the six-foot mirror is chopped into electronic bits, which are reconstituted as light on his video screen.
“Much of observing these days is watching monitors and playing with computers,” Dr. Corbally says. “People say, ‘Oh, that must be so beautiful being out there looking at the sky.’ I tell them it’s great if you like watching TV.”
Dressed in blue jeans and a work shirt, he is not a man who wears his religion on his sleeve. No grace is offered before a quick casserole dinner in the observatory kitchen. In fact, the only sign that the Vatican Advanced Technology Telescope is fundamentally different from the others on Mount Graham, the home of an international astronomical complex operated by the University of Arizona, is a dedication plaque outside the door.
“This new tower for studying the stars has been erected on this peaceful site,” it says in Latin. “May whoever searches here night and day the far reaches of space use it joyfully with the help of God.” At that point, religion leaves off and science begins.
The Roman Catholic Church’s interest in the stars began with purely practical concerns when in the 16th century Pope Gregory XIII called on astronomy to correct for the fact that the Julian calendar had fallen out of sync with the sky. In 1789, the Vatican opened an observatory in the Tower of the Winds, which it later relocated to a hill behind St. Peter’s Dome. In the 1930s, church astronomers moved to Castel Gandolfo, the pope’s summer residence. As Rome’s illumination, the electrical kind, spread to the countryside, the church began looking for a mountaintop in a dark corner of Arizona.
Building on Mount Graham was a struggle. Apaches said the observatory was an affront to the mountain spirits. Environmentalists said it was a menace to a subspecies of red squirrel. There were protests and threats of sabotage. It wasn’t until 1995, three years after the edict of Inquisition was lifted against Galileo, that the Vatican’s new telescope made its first scientific observations.
The target tonight is three spiral galaxies — Nos. 3165, 3166, 3169 in the New General Catalog — lying about 60 million light-years from Earth, a little south of the constellation Leo. Sitting at a desk near Dr. Corbally is Aileen O’Donoghue, an astronomer from St. Lawrence University in Canton, N.Y., who is interested in how these gravitational masses tug at one another, creating the stellar equivalent of tides.
“Exposing, 30 minutes,” she says. As Celtic ballads play in the control room, data is sucked up by hard drives, and a column of numbers scrolls down her computer screen. Dr. O’Donoghue, who was raised Roman Catholic, is the author of “The Sky Is Not a Ceiling: An Astronomer’s Faith,” in which she describes how she lost and then rediscovered God “in the vastness, the weirdness, the abundance, the seeming nonsensicalness, and even the violence of this incredible universe.”
In person she’s not nearly so intense. While waiting for an image to gel, she steps out on a balcony for a look at the unprocessed sky. The Beehive Cluster, one of the first things Galileo saw with his telescope, is sparkling in the constellation Cancer. Next to it is Leo, where Dr. O’Donoghue is looking for the gravitational tides.
“It’s the real sky that matters,” she says. She describes how she makes her undergraduate students go outside and look at the Big Dipper at different times of the night. “They come back and say, ‘It moves!’ ” — words Galileo legendarily muttered after he was forced to recant. “You can tell students that the Earth rotates, but until they see that with their eyeballs, they’re not doing science,” she said. “You might as well be teaching theology and Scripture.”
Back inside the control room she explains how the gravitational tides she is studying might be stellar nurseries. As one galaxy brushes by another, clouds of gas are stirred so violently that they give birth to stars.
In the Vatican Observatory’s annual report, at the point where a corporation might describe its business strategy, is a section delineating the difference between creatio ex nihilo (creation from nothing) and creatio continua: “the fact that at every instant, the continued existence of the universe itself is deliberately willed by God, who in this way is continually causing the universe to remain created.”
Theologians call these “primary causes,” those that flow from the unmoved mover. Sitting atop this eternal platform is another layer, the “secondary causes,” which can be safely left to science.
Dr. Corbally and Dr. O’Donoghue continue working through the night, collecting data on secondary causes — galactic tides, stellar birth. Sleep will wait until morning, and thoughts about primary causes for another time.
Flutes Offer Clues to Stone-Age Music
By JOHN NOBLE WILFORD, The New York Times, June 25, 2009
At least 35,000 years ago, in the depths of the last ice age, the sound of music filled a cave in what is now southwestern Germany, the same place and time early Homo sapiens were also carving the oldest known examples of figurative art in the world.
Music and sculpture — expressions of artistic creativity, it seems — were emerging in tandem among some of the first modern humans when they first began spreading through Europe or soon after.
Archaeologists reported Wednesday the discovery last fall of a bone flute and two fragments of ivory flutes that they said represent the earliest known flowering of music-making in Stone Age culture. They said the bone flute with five finger holes, found at Hohle Fels Cave in the hills west of Ulm, was “by far the most complete of the musical instruments so far recovered from the caves” in a region where pieces of other flutes have been turning up in recent years.
A three-hole flute carved from mammoth ivory was uncovered a few years ago at another cave, as well as two flutes made from wing bones of a mute swan. In the same cave, archaeologists also found beautiful carvings of animals.
But until now the artifacts appeared to be too rare and not as precisely dated to support wider interpretations of the early rise of music. The earliest solid evidence of music instruments had previously come from France and Austria, but dated well after 30,000 years ago.
In an article published online by the journal Nature, Nicholas J. Conard of the University of Tübingen, in Germany, and colleagues wrote, “These finds demonstrate the presence of a well-established musical tradition at the time when modern humans colonized Europe.”
Although radiocarbon dates earlier than 30,000 years ago can be imprecise, samples from the bones and associated material were tested independently by two laboratories, in England and Germany, using different methods. Scientists said the data agreed on ages of at least 35,000 years old.
Dr. Conard, a professor of archaeology, said in an e-mail message from Germany that “the new flutes must be very close to 40,000 calendar years old and certainly date to the initial settlement of the region.”
Dr. Conard’s team said that an abundance of stone and ivory artifacts, flint-knapping debris and bones of hunted animals were found in the sediments with the flutes. Many people appeared to have lived and worked there soon after their arrival in Europe, assumed to be around 40,000 years ago and 10,000 years before the native Neanderthals were to become extinct.
The Neanderthals, close human relatives, apparently left no firm evidence of having been musical.
The most significant of the new artifacts, the archaeologists said, was a flute made from a hollow bone of a griffon vulture, skeletons of which are often found in these caves. The preserved portion is about 8.5 inches long and includes the end of the instrument into which the musician blew. The maker had carved two deep, V-shaped notches there, and four fine lines near the finger holes. The other end appears to be broken off; judging by the typical length of these bird bones, two or three inches are missing.
Dr. Conard’s discovery in 2004 of the seven-inch, three-holed ivory flute at the Geissenklösterle cave, also near Ulm, inspired him to widen his search of caves, saying at the time that southern Germany “may have been one of the places where human culture originated.”
Friedrich Seeberger, a German specialist in ancient music, reproduced the ivory flute in wood. Experimenting with the replica, he found that the ancient flute produced a range of notes comparable in many ways to modern flutes. “The tones are quite harmonic,” he said.
A replica is yet to be made of the recent discovery, but the archaeologists said they expected the five-hole flute with its larger diameter to “provide a comparable, or perhaps greater, range of notes and musical possibilities.”
Meanwhile, Dr. Conard began this week a new season of exploration at Hohle Fels Cave. “We’ll see how it goes,” he said by e-mail. “I never have expectations. One never finds what one is looking for, but one normally finds something interesting.”
Archaeologists and other scholars can only speculate as to what moved these early Europeans to make music.
It so happens, as Dr. Conard and his co-authors, Susanne C. Münzel of Tubingen and Maria Malina of the Heidelberg Academy of Sciences, noted, the Hohle Fels flute was uncovered in sediments a few feet away from the carved figurine of a busty, nude woman, also around 35,000 years old. The discovery was announced in May by Dr. Conard.
Was this evidence of happy hours after the hunt? Fertility rites or social bonding? The German archaeologists suggested that music in the Stone Age “could have contributed to the maintenance of larger social networks, and thereby perhaps have helped facilitate the demographic and territorial expansion of modern humans.”
Obesity May Have Offered Edge Over TB
By RONI CARYN RABIN, The New York Times, June 24, 2009
Over the course of human evolution, people with excess stores of fat have been more likely to survive famines, many scientists believe, living on to pass their genes to the next generation.
But these days, obesity is thought to be harmful, leading to chronic inflammation and metabolic disorders that set the stage for heart disease. So what went awry? When did excess fat stop being a protective mechanism that assured survival and instead become a liability?
A provocative new hypothesis suggests that in some people, fat not only stores energy but also revs up the body’s immune system. This subgroup may have enjoyed a survival advantage in the 1800s, when people were plagued by a disease that decimated Europe: tuberculosis.
By some estimates, tuberculosis has killed more than one billion people, eclipsing both the bubonic plague and the Spanish flu.
But the heightened immune response that helped some overweight adults survive tuberculosis is now an “evolutionary anachronism” that has outlived its usefulness, said Dr. Jesse Roth, who outlined the idea this week in The Journal of the American Medical Association.
“Fat is not simply a collection of calories, it is acting like a part of the innate immune system,” said Dr. Roth, an investigator at the Feinstein Institute for Medical Research in Manhasset, N.Y. “But this immune system has a downside.”
“We are paying a price for a highly activated defense system that’s now pretty obsolete,” he added.
The idea has been greeted with some skepticism. It fails to explain why obesity is rampantly increasing, several experts said, and it does not provide a framework for resolving the epidemic.
Yet the question Dr. Roth tries to answer has baffled scientists. The “thrifty gene” hypothesis suggests that evolution favored those who could store fat reserves that helped them withstand lean times, like periodic famines and food shortages.
But that does not explain why body fat carries so many drawbacks, setting off inflammation and metabolic disorders like insulin resistance, high cholesterol and atherosclerosis.
Visceral fat, which is stored in the abdomen, tends to cause more inflammation than subcutaneous fat, which is stored closer to the skin, on the arms and legs. It is possible that survival during the tuberculosis era favored those who stored excess visceral fat, Dr. Roth said.
Dr. Anthony S. Fauci, director of the National Institute of Allergy and Infectious Diseases, called Dr. Roth’s explanation “very, very hypothetical.”
“His hypothesis,” Dr. Fauci said, “is that if so many people have this propensity — not just for obesity, but for the inflammatory response and atherosclerosis that generally goes along with the tendency to be obese — they must have been selected evolutionarily.”
But people rarely lived long enough to develop heart disease in earlier centuries, he said, adding, “The long-range negative effects of this genetic propensity would rarely be seen.”
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Date: 2009-06-25 01:18 pm (UTC)no subject
Date: 2009-06-26 07:00 am (UTC)