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Sunday, November 11, 2007

Singin' In The Rain

Singin' in the Rain (1952)
Directed By: Stanley Donen, Gene Kelly
Screenplay: Betty Comden, Adolph Green
Cast: Gene Kelly, Donald O'Connor, Debbie Reynolds

(via YouTube) http://www.youtube.com/watch?v=bkEvy-9yVyQ

A real gem. All-time favorite musical.

Nuristan

(via Wikipedia): Nuristan (also spelled Nooristan, Nurestan, or Noorestan) is one of the thirty-four provinces of Afghanistan. It was formed in 2001 from the northern parts of Laghman Province and Kunar Province. The ethnic Nuristanis make up the majority of the population of this province. Located on the southern slopes of the Hindu Kush mountains in the northeastern part of the country, Nuristan spans the basins of the Alingâr, Pech, Landai Sin, and Kunar rivers. Its capital is Nuristan. It is bordered on the north by Badakhshan Province, on the west by Panjshir Province, on the south by Laghman and Kunar provinces, and on the east by Pakistan + the region is well-known for its unique colored gemstone deposits.

Useful links:
en.wikipedia.org/wiki/Nurestan_Province
www.gems-afghan.com

MoMA Makes Its Move

Barbara Pollack writes about moving an entire museum + real-estate issues + other viewpoints @ http://artnews.com/issues/article.asp?art_id=1136

A Modernist Manifesto

Ann Landi writes about Meyer Schapiro (1904–96) + his concepts + the liberating quality of avant-garde art + other viewpoints @ http://www.artnews.com/anniversary/top4.asp

The Emerald Story

Emerald Simulants (synthetics and imitations)

Synthetic emeralds: Synthetic emeralds are man-made emeralds which have the same physical, chemical and optical properties of a natural emerald. Man has very skillfully duplicated this natural green stone so that it is sometimes extremely difficult to tell the difference. However, with the aid of magnification and other tests, a synthetic readily reveals its true identity. Synthetic emeralds have been in the market for several decades, but it’s only now, due to sophisticated mass production techniques that they have become more prevalent and a cause for concern. In the past synthetics were deceptively passed off as natural emeralds by dealers, but today they are now being successfully marketed as synthetics or lab-created by such companies as the San Francisco-based Chatham Inc, Russian-based Tairus, and others.

The techniques employed for the production of synthetic emeralds are:
- Flux growth
- Hydrothermal growth

Flux method: A flux is a chemical compound which when melted has the ability to assist another substance to melt at a temperature lower than would be normal for that material. The chemical components of emerald may be dissolved with an appropriate flux while being held within a platinum-lined crucible. Upon cooling, crystals of synthetic emerald are formed. Chatham employs the flux method for the production of his synthetic emeralds.

Typical inclusions:
- Solid masses of residual flux which appear cloudy.
- Wispy veils—look like thin veils blowing in breeze. Resemble natural liquid fingerprints, but may be more dense.
- Venetian-blind—refers to the appearance of very fine straight line growth zoning which takes on the appearance of venetian blinds.

Hydrothermal process: Of all the synthetic gem growth techniques, this process mimics most closely the process of nature for the creation of emeralds. As the name indicates, it involves water, heat and pressure. Nutrient material (chemical compound for emerald) is placed in an autoclave or ‘bomb’ along with a number of seed crystals located towards to upper (eventually cooler) part of the vessel. Heated water under high pressure dissolves the nutrient and through convection, the chemical needed to grow emerald are deposited on the seed crystal. These crystals now continue to grow so long as the conditions for growth remain and there is a supply of the nutrient.

Typical inclusions:
- Liquid feather with the appearance of fingerprints.
- Distinct fine line zoning.
- Arrow head zoning.
- Nail-head-like phenakite inclusions.

Emerald Story (continued)

Jean-Baptiste Tavernier’s Travels In India

Concerning Diamonds, And The Mines And Rivers Where They Are Found; And Especially Of The Author’s Journey To The Mine Of Rammalakota
(via Jean-Baptiste Tavernier’s Travels In India / V Ball / Edited by William Crooke)

The diamond is the most precious of all stones, and it is the article of trade to which I am most devoted. In order to acquire a thorough knowledge of it I resolved to visit all the mines, and one of the two rivers where diamonds were found; and as the fear of dangers has never restrained me in any of my journeys, the terrible picture that was drawn of these mines, situated in barbarous countries to which one could not travel except by the most dangerous routes, served neither to terrify me nor to turn me from my intention. I have accordingly been at four mines, of which I am about to give descriptions, and at one of the two rivers whence diamonds are obtained, and I have encountered there neither the difficulties nor the barbarities with which those imperfectly acquainted with the country had sought to terrify me. Thus I am able to claim that I have cleared the way for the others, and that I am the first European who has opened the route for the Franks to these mines, which are the only places in the world where the diamond is found.

The first of the mines which I visited is situated in the territory of the King of Bijapur in the Province of Carnatic, and the locality if called Rammalakota, situated five days journey from Golkonda, and eight or nine from Bijapur. The fact that the two Kings of Golkonda and Bijapur were formerly subject to the Mogul, and were then only Governors of the Provinces which they acquired by their revolt, caused it to be said, and to be still said by some people, that the diamonds come from the Empire of the Great Mogul. It is only about 200 years since this mine of Rammalakota was discovered, at least so far as I have been able to ascertain from the people of the country.

All round the place where the diamonds are found the soil is sandy, and full of rocks and jungle, somewhat comparable to the neighborhood of Fontainebleau. There are in these rocks many veins, some of half a finger and some of a whole finger in width; and the miners have small irons, crooked at the ends, which they thrust into the veins to drawn from them the sand or earth, which they place in vessels; it is in this earth that they afterwards find the diamonds. But as the veins do not always run straight, as some ascend, while others descend, they are obliged to break the rocks, always following the direction of the veins. After they have opened them out, and have removed the earth or sand which may be in them, they then commence to wash it two or three times, and search it for whatever diamonds it may contain. It is in this mine that the cleanest and whitest-watered diamonds are found; but the evil is that in order to extract the sand more easily from the rocks the miners strike such blows with a heavy iron crowbar that it fractures the diamonds, and gives rise to flaws. This is the reason why so many thin stones come from this mine, for when the miners see a stone in which there is a flaw of some size, they immediately cleave it, that is to say split it, at which they are much more accomplished than we are. These are the stones which we call thin (foible), which make a great show. If the stone is clean they do not do more than just touch it with the wheel above and below, and do not venture to give it any form, for fear of reducing the weight. But if it has a small flaw, or any spots, or small black or red grit, they cover the whole of the stone with facettes in order that its defects may not be seen, and if it has a very small flaw they conceal it by the edge of one of the facettes. But it should be remarked that the merchant prefers a black point in a stone to a red one. When there is a red one the stone is roasted, and the point becomes black. I learned this trick at length so well that when I examined a parcel of stones which came from this mine, and saw that there were facettes on any of them, especially small facettes, I was certain that there was some speck of flaw in the stone.

There are at this mine numerous diamond cutters, and each has only a steel wheel of about the size of our plates. They place but one stone on each wheel, and pour water incessantly on the wheel until they have found the ‘grain’ of the stone. The ‘grain’ being found, they pour on oil and do not spare diamond dust, although it is expensive, in order to make the stone run faster, and they weight it much more heavily than we do.

Jean-Baptiste Tavernier’s Travels In India (continued)

Spain Shown Perils Of Climate Change

(via The Guardian) The images from the book 'Photoclima' via Greenpeace is quite shocking. What will be the fate of cities like Dubai, Singapore, and other coastal cities in the coming decades? Frightening and nowhere to run!

Useful link:
http://www.guardian.co.uk/environment/2007/nov/10/flooding.climatechange

Madagascar

(via Wikipedia) Madagascar, or Republic of Madagascar (older name Malagasy Republic), is an island nation in the Indian Ocean off the southeastern coast of Africa. The main island, also called Madagascar, is the fourth largest island in the world, and is home to five percent of the world's plant and animal species; more than 80 percent of which are endemic to Madagascar. Most notable are the lemur infraorder of primates, the carnivorous fossa, three endemic bird families and six endemic baobab species + the entire country is rich in colored gemstones.

Useful links:
http://en.wikipedia.org/wiki/Madagascar
http://www.lonelyplanet.com/worldguide/destinations/africa/madagascar