Rock flour, or glacial flour, consists of clay-sized particles of rock, generated by glacial erosion or by artificial grinding to a similar size. Because the material is very small, it is suspended in river water making the water appear cloudy. If the river flows into a glacial lake, the lake may appear turquoise in color as a result. Examples of this are Lake Louise, Canada and Gjende lake in Norway.
Some agronomists believe that rock flour has a powerful effect in restoring trace minerals to soil. An early experimeter was the German miller Julius Hensel, author of "Bread from Stones", who reported successful results with "steinmehl" (stonemeal) in the 1890s. His ideas were not taken up through technical limitations and, according to proponents of his method, opposition from the champions of conventional fertilisers.
Virginia opossum
The Virginia opossum ("Didelphis virginiana") is the only species of North American marsupial. It is sometimes called a possum, but that refers more correctly to a group of Australian marsupials.
An opossum is about the size of a house cat. It has grizzled white and gray fur. Adult opossums weigh about 2-6 kg (4-14 lbs). They live alone, are active at night, and they are good climbers.
People can find this opossum in the eastern United States, and along the west coast from British Columbia and to Baja California. They like to live in forests, brushy areas, and farmland.
Motor ship
A motor ship is a ship moved through water by an engine, usually a diesel engine. The name of motor ships are often prefixed with MS or M/S.
24 (number)
Twenty-four is a number. It comes between twenty-three and twenty-five, and is an even number. It is divisible by 1, 2, 3, 4, 6, 8, 12, and 24.
"24" is also the name of a popular television show in the United States.
25 (number)
Twenty-five is a number. It comes between twenty-four and twenty-six, and is an odd number. It is also the 5th square number, after 1, 4, 9, and 16.
Passo de Camaragibe
Passo de Camaragibe is a municipality in Brazil. It is on the northern coast of the Brazilian state of Alagoas. About 13,544 people live there (2005). Its area is .
Radlin
Radlin is a town in Wodzisław County, Silesian Voivodeship, Poland, with about 17,673 people (2004).
Particle size (general)
The term particle size is used to compare dimensions of different small material objects.
Larger objects are usually called stone, rock, a piece of something, etc. The term "particle" indicates small size, usually less than centimeter. Particle might be either solid, or liquid, or even gas. Liquid particles are called "droplets". Gaseous particles are "bubbles". All of them can be characterised in terms of size.
But a typical material object is likely to be irregular in shape. This causes ambiguity in definition of "particle size". Existing definitions are based on replacent of a given particle with imaginary sphere that has one of the properties identical with the particle.
Chichester
Chichester is a small cathedral city in West Sussex, England, with a population of 23,731 (2001 Census). It is quite near the sea, and near to a harbour for yachts.
The City of Chichester is twinned with:
There are many buildings in the centre of Chichester which have interesting architecture. The oldest building is Chichester Cathedral. There are many beautiful houses in the Cathedral precincts. In many parts of the city one can still see the old city walls, and it is possible to walk along the top in some places. There is an old butter market dating from 1808. A century later another storey was added on top.
Just to the north of Chichester is the Goodwood race course. Many people go there in the summer to watch the horse races. Goodwood is in the South Downs which is a beautiful area for walking.
Chichester is an old Roman town. In the centre of Chichester are four main streets: North Street, South Street, East Street and West Street. These four streets meet in the centre, where there is a small round building with a cross: the Chichester cross. The four main streets form an area which is mostly pedestrianized. Chichester Cathedral stands near the centre, between West Street and South Street. Further to the north lies the area of Summersdale and the conservation area around Graylingwell Hospital. South of Chichester is a canal which links the city to the sea. Soon after it was built in the 19th century the railway came to Chichester so that the canal was not used for long. The canal was left in a bad state for many years until, more recently, it was restored. Some of it can be used by small boats, and there are reedbeds where birds can breed.
There is a Roman Museum near Fishbourne, just west of the city, where many Roman remains can be seen, including a palace which once stood there.
Chichester is a Fairtrade City. Suppliers of Fairtrade are shown by a green dot in the web directory.
Because Chichester is so historic it has been divided into eight conservation areas. People are very anxious that the town should not lose its historic character.
Every year in July, a three-week festival, the Chichester Festivities, takes place. Then in August since 2007 there has been a week long I AM JOY Arts and Music festival held across different venues in the city. The Chichester Festival Theatre has productions for most of the year. It is one of the most famous theatres outside London.
Pallant House Gallery won the 2007 gallery of the year Gulbenkian Prize. It has a lot of modern British art.
The Joy Gallery, open from December 2008 to November 2009, showcased emerging and established artists from the local area.
Chichester has its own amateur orchestra, the Chichester Symphony Orchestra, which gives three concerts during the year.
Chichester RAJF (From "Real Ale and Jazz Festival") gives a four-day festival of music and real ale held each July in tents beside the 13th century Guildhall in Priory Park.
There is plenty of sport in Chichester. Chichester R.F.C. are a central team and rugby club. There is a large swimming pool with fitness rooms and sports hall. There are tennis courts near the Festival Theatre.
Chichester has several schools, including Chichester High School for Boys, Chichester High School for Girls, Bishop Luffa School and Prebendal School which is linked to the Cathedral. There is a University of Chichester which, until recently, was known as Bishop Otter College.
Several roads lead into Chichester. The A27, which runs along the south coast, now bypasses the city. There are rail links to London, Gatwick, Portsmouth, Southampton and Basingstoke. Many years ago there was a small train which went to Midhurst, and even a tram to Selsey. Nowadays busses go to these towns. They depart from the central bus station near the railway station.
Admontite
Admontite is a mineral that is colorless in color and is made of crystals. It is named for Admont, Austria, which is where they found the first example of it. They found the first example of it in a gypsum deposit. Gypsum and calcite both easily scratch this mineral, and it easily breaks as well. Admontite is not radioactive. Admontite is not edible.
Hydrology
Hydrology is the study of movement, distribution, and quality of water throughout the Earth. A person who studies hydrology is called a hydrologist.
The central theme of hydrology is how the water circulates. This is called the water cycle. The most vivid illustration of it is the water evaporation from the ocean with the formation of clouds. These clouds drift over the land and produce rain.
Semicircle
In geometry, a semicircle is a two-dimensional geometric shape that forms half of a circle. Being half of a circle's 360°, the arc of a semicircle always measures 180°. A triangle inscribed in a semicircle is always a right triangle.
Hurricane Camille