Thursday, September 27, 2012

Ancient Buddhist statue, Nazis, meteorite, Indiana Jones?...no Jones


"Ancient Buddhist statue, filched by Nazis, was carved from meteorite"

by

Will Parker

Septrember 27th, 2012

Science a Go Go

 A 1,000 year-old Buddhist statue discovered by a Nazi expedition to Tibet in 1938 has been analyzed by scientists and found to be carved from a rare ataxite meteorite. Details of how the provenance of the relic was established have been published in Meteoritics and Planetary Science.

The statue, known as the Iron Man, weighs 10kg (21lb) and is believed to portray the god Vaisravana (known as Jambhala in Tibet). According to anthropologists, the relic displays stylistic elements associated with both Buddhist and pre-Buddhist Bon cultures.

It was discovered in 1938 by an expedition led by German zoologist Ernst Schäfer (pictured). Interestingly, the expedition was sponsored by Nazi SS Chief Heinrich Himmler and the entire expeditionary team were believed to have been SS members.

Schäfer would later claim that he accepted SS support to advance his scientific research into the wildlife and anthropology of Tibet. However, many historians believe Himmler's support may have been based on his belief that the origins of the Aryan race could be found in Tibet.

The statue was taken back to Germany and became part of a private collection in Munich. It only became available for study following its sale at auction in 2007.

The first team to study the origins of the statue was led by Dr Elmar Buchner from Stuttgart University. Buchner's team was able to classify it as an ataxite, a rare class of iron meteorite with high contents of nickel.

"The statue was chiseled from a fragment of the Chinga meteorite which crashed into the border areas between Mongolia and Siberia about 15,000 years ago," explained Buchner. "While the first debris was officially discovered in 1913 by gold prospectors, we believe that this individual meteorite fragment was collected many centuries before." Buchner adds that it is possible the statue originated from the Bon culture of the 11th Century.

Buchner is reluctant to put a value on the piece but he notes that it is the only known illustration of a human figure to be carved from a meteorite. "We have nothing to compare it to when assessing value," he said. "If our estimation of its age is correct and it is nearly a thousand years old it could be invaluable."

Physicist...artist...France Tremblay


"Physicist turned artist enjoys science of painting"

by

Blair Edwards

September 27th, 2012

EMC

When the high-tech bubble burst in 2001, it came as a natural career crossroads for France Tremblay.

For nearly a decade, the Kanata Lakes woman had worked as a scientist, first studying quantum mechanics at the prestigious Cavendish Laboratory at the University of Cambridge in England, then later developing radar systems for the Department of Defence.

From 1996 to 2001, Tremblay managed teams of scientists developing the next generation of telecommunication technology at Nortel Networks.

But always in the back of her mind, she carried with her the dream of becoming a full-time artist, a seismic career switch for a woman who had spent the past 20 years developing impressive academic and professional credentials in the fields of physics and telecommunications.

The change in careers came a little earlier than originally planned with the fall of Nortel.

"I'm now a full-time artist with science as a hobby," said Tremblay.

SCIENCE

Science was Tremblay's first passion in life.

"I loved it since I was a kid,"
she said.

Tremblay, who grew up in Quebec City, was interested in studying the physical world, with math simply providing the paintbrush to bring her observations to life.

"The maths are an essential tool to describe the world we live in," she said.

Tremblay earned a bachelor's degree in physics at Lavalle University, in Quebec City, a master's degree in physics at the University of Toronto and finally a PhD degree in physics at Cambridge.

"Physics is the best way to do a lot of maths while linking it to the physical world, so I found that exciting," said Tremblay. "Physics means you study something that's real."

During her off time while studying in England, Tremblay toured art museums throughout Europe, and developed a second passion in life.

"I was having a natural interest in art,"
Tremblay said.

The fledgling artist visited many of the great museums in France, such as the Louvre and the Musée d'Orsay, as well as some of the smaller venues devoted to only one artist, such as Picasso and Rodin.

"They're still jewels," she said.

Those tours allowed Tremblay to begin learning the tools she would need to prepare for a career in art.

"A seed was planted in my heart in Europe,"
she said. "I had a decade to prepare."

When she started working as a scientist, Tremblay used her off hours to learn the fundamentals of painting, such as drawing techniques and the proper way to mix paint.

"This is a life-long learning curve,"
Tremblay said. "You need to have a lot of tools in your toolbox."

Since 2002, Tremblay has become a full-time artist and part-time scientist - she works as a professor in the electrical engineering department at the University of Ottawa.

She has entered high-profile exhibitions in the United States, including the Paint the Parks Top 11 in 2007, 2011 and 2012 as well as The Art of Conservation, an international annual event presented at various prestigious museums and the Society of Animal Artists exhibition from 2010-12.

She won the grand prize in the Paint the Park Top 100 in 2008 and was selected a finalist in the landscapes category and wildlife art category of the Artist's Magazine Annual Art Competition, which draws entries from nearly 15,000 artists every year.

Every year, Tremblay opens her home to the public, participating in the annual Kanata Artists Studio Tour.

Tremblay paints landscapes, still life and wildlife pieces using acrylic paint as well as drawing using coloured pencils, graphite and carbon.

She lists some of her influences as Canadian wildlife artist Robert Bateman, as well as painters Patricia Pepin and John Banovich.

In 2002, Tremblay founded an art school that she runs out of her home in Kanata Lakes.

RESEARCH


Tremblay's eye for precision influenced her taste in art.

She said she approaches her paintings from the perspective of a scientist and that her work is the result of careful planning and analysis.

"A lot of my work is so realistic to the extreme," she said. "That means I have to do a lot of research on the subject."

Every year, Tremblay plans one to two trips to remote areas to "research" her paintings.

"Every painting you see (on my wall) is the result of my research in the field," she said. "I'm climbing mountains, I'm walking in the deserts - for me that's the exciting part of the process."

Her research trips have included visits to Death Valley in eastern California, the Rocky Mountains in Alberta as well as the Florida Keys.

Her research provides an intense study of her paintings' subjects.

For instance, Tremblay spent countless hours in Andrew Haydon Park in Nepean, observing, sketching and studying a specific great blue heron, the subject of her acrylic painting, The Sovereign.

"I can tell you that specific bird has lived in Andrew Haydon Park for two years," she said. "I'm not looking at the bird species. I'm looking at the bird - this isn't a bird, it's a specific blue heron."

From start to finish, a painting can take between 80 to 200 hours for Tremblay to produce.

Tremblay said her future goal remains the same every year - improve as an artist, learn better technique and design.

"I just want to do the best painting I can."

1,141 inmates could benefit from Annie Dookhan's mistakes


"Chemist in lab scandal told investigators: ‘I messed up bad’"

by

Brian Ballou and Andrea Estes

September 26th, 2012

boston.com

The former state chemist at the heart of the state drug lab scandal admitted to investigators that she improperly removed evidence from storage, forged colleagues’ signatures, and didn’t perform proper tests on drugs for “two or three years,” according to a copy of a State Police report obtained by the Globe.

Annie Dookhan, whose misconduct may have jeopardized evidence in about 34,000 drug cases, also admitted that she recorded drug tests as positive when they were negative “a few times” and sometimes tested only a small sample of the drug batch that she was supposed to analyze.

“I messed up. I messed up bad. It’s my fault,” she told the state troopers who visited her Franklin home on Aug. 28, insisting that she acted alone. “I don’t want the lab to get in trouble.”

However, the troopers’ interviews with other chemists in the lab make clear that Dookhan’s colleagues had concerns about her unusually large caseload and lab habits and raised them with supervisors. But the supervisors took little action even when they learned that she had forged other chemists’ initials on some drug samples.

The police report marks the first time that the public has heard from Dookhan in her own words. What emerges is a picture of a woman who may have suffered an emotional breakdown and who had been under suspicion for cutting corners in the lab for at least two years. When the troopers confronted her with the evidence of wrongdoing, Dookhan confessed again and again.

At one point, when troopers suggested Dookhan should speak to her husband about getting a lawyer, Dookhan said that she was going through serious marital problems and had no money to hire one.

After the interview, State Police were so concerned about Dookhan’s state of mind that they called to make sure she was not suicidal, according to the report.

Detective Lieutenant Robert Irwin, a trooper assigned to Attorney General Martha Coakley’s office, asked Dookhan if she ever thought “bad thoughts.”

“She said that the harm she was causing people would go through her mind every now and then,” Irwin wrote in his report. “I then asked her if she had thought of harming herself. She said no.”

The state lab in Jamaica Plain was closed in August after State Police discovered the potential magnitude of Dookhan’s actions. As a state chemist for nine years, Dookhan handled 60,000 drug samples and sometimes provided expert testimony in court.

So far, Dookhan has not been charged with any crime. Coakley’s office is trying to determine whether there was any criminal wrongdoing by Dookhan or others.

Already, at least 20 drug defendants have been freed, had their bail reduced, or had their sentences suspended because the evidence in their cases was analyzed by Dookhan. And many more are likely to be freed: Governor Deval Patrick’s investigators have identified 1,141 inmates in state prisons or county jails in cases based on evidence handled by Dookhan.


Norfolk District Attorney Michael Morrissey has called the Dookhan case “one of the largest criminal snafus in the history of the Commonwealth.”

But until now, Dookhan, the 34-year-old-mother at the heart of the debacle, has not been heard from, declining comment and remaining largely out of public view. In fact, she made it clear to Irwin that she didn’t understand why the media was interested in her.

Sunday, September 23, 2012

Space shuttles...decades later


One wonders about the shuttles in decades to come. In times past we were enamored by steam locomotion and many engines were placed in parks and rail museums for our awe and entertainment. Most of them are gone now. Could a similar fate happen to the shuttles?

Vanadium...from $4,000 to $1.80/pound...thanks to mining at Minas Ragra, Peru


Minasragrite


Workers near Minas Ragra. Ore mined in Peru was sent 3,800 miles to a U.S. smelting plant via llama, train, and ship.


"The Rocks at the Top of the World"

by

Atsushi Gomi and Robert D. Whetham

Chemical Heritage Foundation

For almost 100 years after its first discovery in 1801 the element vanadium languished in obscurity. It was rare and lacked any apparent use. All that changed at the turn of the century when John Oliver Arnold discovered that adding a tiny amount of the element to steel made the steel alloy stronger. Soon after, Henry Ford picked up a fragment of a wrecked French race car. Surprised by its light weight, he sent the piece off for analysis only to be further surprised to learn the steel contained vanadium. Vanadium steel, Ford learned, also turned out to be rustproof and shock and vibration resistant—the perfect material for a new industry in search of new materials. The first Model-T car built by Ford contained vanadium steel in its crankshafts, axles, gears, and springs. Initially, vanadium’s life in industry appeared likely to be cut short: there was no single significant source of the element, little mining of it, and no other options for those looking to make stronger steel on a large scale. But one day in 1905, in one of the world’s most remote and harshest regions, two men discovered the vanadium equivalent of a gold mine.

That day, Antenor Rizo Patrón Lequérica and Eulogio E. Fernandini de la Quintana rode their horses to Minas Ragra, a windswept, barren area on the edge of the Andes about 100 miles (161 kilometers) north of the capital, Lima, and more than 25 miles (40 kilometers) from the nearest railway. The high altitude, 3 miles (5 kilometers) above sea level, turned even a short amble into an exhausting proposition. But the two had made the grueling journey for a reason. Fernandini owned a nearby lead, silver, and copper mine, as well as a smelter to refine the ores. Rizo Patrón managed the smelter laboratory. In search of fuel to power the smelter, they collected samples of any rock that looked burnable. After filling their packs they got on their horses for the return journey.

As night approached and temperatures dropped below freezing, the two men lodged at Hacienda Hayarragra, about 12 miles (19 kilometers) from Minas Ragra. To warm their icy room they burned one of the samples—a shiny lump of what looked like coal. Though the samples did not appear to contain pyrite or any other familiar sulfide minerals, the burning lump produced a surprisingly large amount of poisonous sulfurous gas. Rizo Patrón analyzed the sample on his return to the lab and discovered a new mineral, one that contained vanadium. While Rizo Patrón got naming rights—he called it patronite (VS4), after himself—Fernandini applied for mining property rights.

Meanwhile, in the United States a man named Joseph M. Flannery had a problem. Flannery managed the Flannery Bolt Company at Bridgeville, Pennsylvania, which produced flexible stay bolts used primarily for steam-locomotive boilers. Flannery wanted high-strength steel alloys for his bolts. He had heard about vanadium findings in Peru and in 1906 dispatched two American geologists, Donnel F. Hewett and Alfred Thompson, to search for a supply. The two men first visited the Llacsacocha mine, where vanadium had also been discovered, but found nothing worth mining. Disappointed, they returned to Lima, where they planned to board a ship for home. Before departing they met with José Julián Bravo, who managed the laboratory for the Corps of Mining Engineers of Peru and who had written a report on patronite. Bravo showed a sample from Minas Ragra to the two Americans, who promptly turned around and headed inland again. Their subsequent report to Flannery convinced him to buy Minas Ragra.

Fernandini had no objection to selling: he knew he lacked the resources to develop the mine. He sold it to Flannery for 2,000 Peruvian pounds (approximately U.S. $10,000) and 10% of the stock in the new company, the American Sales Company. Flannery then established the American Vanadium Company, and the mine opened for business the very next year.

Equipment had to be lugged to the remote site, local miners hired, and lodging built for them. Only 201 metric tons of vanadium ore were mined in 1907, for a total of 28.2 metric tons of vanadium pentoxide (V2O5). Between the mining in Peru and the smelting in Pennsylvania, the ore traveled almost 3,800 miles (6,120 kilometers), first on the backs of llamas and then via rail and ship. Production quickly ramped up; by 1910 output had increased to 3,130 metric tons containing 702.4 metric tons of V2O5. The extremely high-grade ore contained up to 40% V2O5, consisting of patronite and its various oxide minerals.

The vanadium from Minas Ragra changed the world’s steel industry. Before Flannery’s purchase of the mine vanadium steel-alloy production in the United States was less than 1,000 tons per year; after the Minas Ragra mine and the Bridgeville smelter began operating, production increased to 800,000 metric tons in 1916, reaching an annual rate of 1,100,000 metric tons in 1919. Vanadium steel became a player in some of the major advances of the era: it appeared in parts of the Panama Canal lock gates and in the first plane-mounted cannon in World War I, as well as in Ford’s Model T.

The approximately 36,000 metric tons of V2O5 the Minas Ragra mine produced between 1907 and 1955 came from only a small area 360 feet (110 meters) in length, 32 feet (10 meters) wide, and 200 feet (60 meters) deep, inside of an open pit measuring only 850 feet (260 meters) by 400 feet (120 meters). This one small body of ore in Peru allowed its American owners to satisfy more than half the entire world’s demand for vanadium and to control the world vanadium market for over 50 years. For much of that time the ore was dug by hand, dumped into ore carts, and then pushed out of the mine by workers. Only in 1943 did a diesel locomotive replace hard labor in moving ore carts.

In 1909 Flannery learned that his sister had cancer. He withdrew from his vanadium interests and in 1911 established the Standard Chemical Company in Pittsburgh to concentrate on producing radium for cancer treatment. His former company carried on without him, though the mine twice became a victim of its own success. The rapid increase in vanadium production caused the price to collapse to the point where mine operations were shut down between 1912 and 1913 and again in 1922. Before ore was first dug out of Minas Ragra, vanadium had sold for $4,000 per pound. Soon after the mine closed for the first time, vanadium was selling for only $1.80 per pound.

In 1919 the mine was sold again, to Jacob L. Replogle and Charles M. Schwab, who had established the Vanadium Corporation of America. The two wanted to secure sources of specialty steel and went on to buy other vanadium, molybdenum, and tungsten mines and smelters in Colorado, where vanadium was produced as a by-product of uranium mining. A year later the new owners decided to install rail at Minas Ragra. A 4-mile- long (6 kilometer) railway was built between the mine and the Jumasha beneficiation plant (where the ore underwent initial separation) located on the west shore of Lake Punrún. An additional 16 miles (26 kilometers) of rail were laid from the east side of the lake to Ricrán railway station. In 1924 the railway opened, and the llamas were retired from their ore-carrying duties.

But by 1929 the high-grade vanadium ore was nearly exhausted, and attempts to treat low-grade ore proved unsuccessful. The mine closed in 1930, only to reopen in 1934 when a new process to treat low-grade ore was introduced. The ore was calcined with salt and the vanadium leached out with sulfuric acid. Production of V2O5 reached 2,073 metric tons in 1940 and continued until 1955, by which time the mine’s mineral reserves were almost exhausted. The mine closed, its workings were dismantled, and in 1959 the mineral claims were abandoned.

Today, the main sources of vanadium come from deposits of titaniferous magnetite in South Africa, China, and Russia, and uranium-bearing sandstone and phosphate rock in the United States. Most of these contain less than 2% V2O5, only a twentieth of the amount contained in Minas Ragra ore at its peak. Other vanadium sources include heavy petroleum, oil sand, and coal. The total world production is approximately 100,000 metric tons of V2O5 per year.

The open-pit mine at Minas Ragra is now filled with water, but the railway grades and the foundations of the beneficiation plant at Jumasha still remain visible. High in the Andes, they serve as monuments to the first commercial vanadium production in the world.

Atsushi Gomi is the chief representative of the Peruvian branch of Mitsui Mining & Smelting Company, Ltd., and the president of its subsidiary company, Compañia Minera Santa Luisa S.A.


[Robert Whetham is a retired land-use planner and author of several books on railway subjects, including two recent publications on the history of railway development in Peru.]


Visit the Chemical Heritage Foundation for a lot of cool stuff.

 Vanadium [Wikipedia]
 
MELANOVANADITE, A NEW MINERAL FROM MINA RAGRA, PASCO, PERU By WALDoMAR LINDGREN


D o n n e l f o s t e r H e w e t t 1881—1971 A Biographical Memoir by James Gilluly