Tibooburra Outback School of the Air is the town's only school, teaching both local children and the children of property owners in the area. It started as a Distance Education Centre in 1991. Before this, children on properties were educated through central schools in towns such as Broken Hill. The school was begun in 1886. No high school exists in the town. Children travel to the nearest high school, do home school, or attend boarding schools.
Three or four times each year, students from distant properties attend a 'mini-school' at the school. Mini-schools usually have themes (such as pirates or the circus) and have of a range of fun and educational activities. Out of town families also receive two home visits a year, in which a teacher (or teachers) and students visit and spend the day on the property.
In 2004 the school changed from radio based education to the Satellite Education Program.
Helmeted honeyeater
The helmeted honeyeater ("Lichenostomus melanops cassidix") is an endangered species of bird. There is only a tiny population in the Yellingbo Nature Conservation Reserve, in Victoria, Australia. The helmeted honeyeater became the state of Victoria's official bird emblem in 1971.
Famous ornithologist, John Gould first described the bird as being a separate species, which he named "Ptilotis cassidix" in 1867. It now one of the three sub-species of the yellow-tufted honeyeater, "Lichenostomus melanops". The other sub-species are not endangered.
This bird is only found in a five km long patch of forest along two streams in the Yellingbo Nature Conservation Reserve, 50 km east of Melbourne. A reserve was set up in the Bunyip State Park for releasing birds raised in captivity. In 2003 there were 103 individuals in the wild with 20 breeding pairs known as well as a further 34 birds in captivity at the Healesville Sanctuary. The 2009 Victorian bushfires burnt to within 200 metres of bird colony at Bunyip State Park. Captive birds had to be moved to the Melbourne Zoo when the fires also came close to the Healesville Sanctuary. However, on April 28, 2009, 13 birds bred in captivity were released back into the wild. The number of wild birds is now believed to be 113.
Before the captive breeding program was started there were only about 5060 birds left in the wild. The birds have been bred at Healesville and at Sydney's Taronga Park Zoo.
The Helmeted honeyeater is about 20 centimetres (8 inches) long. Their colour can be anywhere from black to olive green. They have a yellow patch on the heads.
Helmeted honeyeaters eat manna, which is like a sap from some eucalyptus trees. They also eat nectar from the eucalypt flowers as well as small insects and spiders.
Several things are being done to save this bird from becoming extinct. One is a captive breeding program, where the birds are bred at Healesville and Toronga Park. When they become old enough, between 6—8 months, the are put into the wild where they will hopefully begin breeding. Forest areas are being planted with the right sort of trees and plants to provide the birds with food and shelter. This is being done on private land as well as in the State parks. There is also planting to join the small patches of bush with corridors so the birds are not trapped in one small area.
Arch Resources
Arch Resources, Inc. , previously known as Arch Coal, is the second-largest coal producer in the United States, claiming to hold 12% of America’s coal supply (140 million tons in 2005). The company's mines are in Wyoming, Utah, Colorado, West Virginia, Kentucky, and Virginia. The corporate headquarters are in St. Louis, Missouri.
The company claims a large reserve of coal that has not been mined yet. It is a total of 3.1 billion tons of mostly low-sulfur coal.
Arch Coal shares are traded on the New York Stock Exchange under the ticker symbol ACI.
Arch Mineral Corporation began in 1969, as a partnership between Ashland Oil (now Ashland, Inc.) and the Hunt family of Dallas. Arch Coal was formed in July 1997 when the privately held Arch Mineral merged with the publicly traded Ashland Coal, Inc., which had been formed in 1975 as a subsidiary of Ashland Oil.
In June 1998, Arch Coal purchased the coal fields and mines of the Atlantic Richfield company, which were mostly in the central Rocky Mountains.
National Fuel Gas
National Fuel Gas was incorporated in 1902 and is based in Williamsville, New York.
The Utility division sells natural gas or moves natural gas from one part of the country to another. The Pipeline and Storage division provides interstate natural gas transportation and storage services for related and non-related companies. The Exploration and Production division prospects for and extracts natural gas and oil from the ground. The Energy Marketing division markets natural gas to industrial, commercial, government, and residential customers. The Timber division markets wood from its New York and Pennsylvania forests, and it owns two sawmills in northwestern Pennsylvania, to cut wood into useful sizes and treat it with chemicals to make it last longer.
National Fuel Gas was one of the first gas utility companies in the United States, and so they have been the first to create some new technologies. Engineers at the company discovered that empty underground gas fields could be used to store gas that has been taken from the ground somewhere else. Thus, the first such storage facility in the US was set up at Zoar Field, about forty miles south of Buffalo. This turned out to be a good financial decision for NFG in the 1940s and 50s, when increased demand for natural gas led to long pipelines in the eastern states being connected to new pipelines and fields in the southwestern states. NFG could then buy huge amounts of cheaper summer gas from the southwest, pipe it to the New York storage fields, pump it down into the ground, then take it back out when demand and prices went up in the winter months.
The company was also the first in the industry to make a gas-fired generator to electrify pipelines so they wouldn't corrode so much. (Natural gas can eat away at metal, over time.)
In 1975, with the introduction of "Balanced Billing", the company claimed that it was "the only gas utility in the country" with a flexible plan for customers to pay bills in eleven equal monthly payments, with settlement of any overpayment or underpayment in the twelfth month. This is a sort of system of installment credit.
National Fuel Gas Co. is traded on the New York Stock Exchange under the ticker symbol NFG. Its fiscal year ends September 30.
Canton, Ohio
Canton is a city in the U.S. state of Ohio and the county seat of Stark County. Canton became a city in 1822. It was the home of president William McKinley, The Pro Football Hall of Fame is in Canton.
Princess Mary Adelaide of Cambridge
Princess Mary Adelaide Wilhelmina Elizabeth of Cambridge (27 November 1833 - 27 October 1897) was a granddaughter of George III of the United Kingdom. She later married the Duke of Teck. She was also the mother of Mary of Teck, and therefore mother-in-law of George V.
The Duke and Duchess of Teck had four children:
Isomorphism
In mathematics (particularly in abstract algebra), two mathematical structures are isomorphic when they are the same in some sense. More specifically, an isomorphism is a function between two structures that preserves the relationships between the parts (see https://en.wikipedia.org/wiki/Isomorphism#Examples). To indicate isomorphism between two structures formula_1 and formula_2, one often writes formula_3.
Using the language of category theory, this means that morphisms map to morphisms without breaking composition. An isomorphism is also a homomorphism that is one-to-one.