knowledge

丁香花语

Sun, 20 Sep 2009 21:54:27 +0100

光辉（bright）

　　丁香花拥有天国之花的光荣外号，也许是因为它高贵的香味，自古就倍受珍视。因此丁香花的花语，也是配得上天国之花外号的光辉。受到这种花祝福而生的人，受天神所祝福，有光辉的人生。由於太聪明，而有喜欢走捷径的毛病。希望在追求的过程中，别忘了最终的目的。

　　在法国,紫色的丁香代表初恋

　　另外也有：1、光荣、不灭、光辉

　　2、爱情萌芽

　　3、友情

　　4、美丽

　　5、喜欢寂静

　　6、青春时的回忆、想起年轻时

　　7、初恋、初恋的刺痛、初恋的感激、想起初恋的她

　　8、纯洁

　　9、记忆

　　10、秋思不解

　　11、羞怯

　　白丁香:青春欢笑

　　市花：丁香花是青海省省会西宁市和黑龙江省省会哈尔滨市的市花。

Static Electricity

Wed, 26 Aug 2009 19:35:03 +0100

Static electricity refers to the buildup of electric charge on the surface of objects. The static charges remain on an object until they either bleed off to ground or are quickly neutralized by a discharge. Although charge exchange can happen whenever any two surfaces come into contact and separate, a static charge will only remain when at least one of the surfaces has a high resistance to electrical flow (an electrical insulator). The effects of static electricity are familiar to most people because we can see, feel and even hear the spark as the excess charge is neutralized when brought close to a large electrical conductor (for example a path to ground), or a region with an excess charge of the opposite polarity (positive or negative). The familiar phenomenon of a static 'shock' is caused by the neutralization of charge.

The Empire State Building

Wed, 26 Aug 2009 19:28:29 +0100

The Empire State Building is a 102-story Art Deco skyscraper in New York City at the intersection of Fifth and West 34th Street. Its name is derived from the nickname for the state of New York. It stood as the world's tallest building for more than forty years, from its completion in 1931 until construction of the World Trade Center's North Tower was completed in 1972. Following the destruction of the World Trade Center in 2001, the Empire State Building again became the tallest building in New York City and New York State.

The best thing since sliced bread!

Wed, 26 Aug 2009 19:11:12 +0100

Everyone must have heard this well known phrase. So when was sliced bread invented? Otto Frederick Rohwedder of Davenport, Iowa invented the first loaf–at–a–time bread–slicing machine. A prototype he built in 1917 was destroyed in a fire, and it was not until 1928 that Rohwedder had a fully working machine ready again. The first commercial use of the machine was by the Chillicothe Baking Company of Chillicothe, Missouri, who produced their first slices on July 7, 1928. Their product, "Kleen Maid Sliced Bread", proved a success.

Sardinia

Wed, 26 Aug 2009 19:18:08 +0100

Sardinia is an island which makes up part of Italy. It the second largest island, after Sicily, in the Mediterranean Sea.

Capital: Cagliari

Currency: Euro

Language: Italian

Population: 1 665 617

Mantises

Wed, 12 Aug 2009 21:28:54 +0100

Mantodea or mantises is an order of insects which contains approximately 2,200 species in 9 families worldwide in temperate and tropical habitats. Most of the species are in the family Mantidae. Historically, the term "mantid" was used to refer to any member of the order because for most of the past century, only one family was recognized within the order; technically, however, the term only refers to this one family, meaning the species in the other eight recently-established families are not mantids, by definition (i.e., they are empusids, or hymenopodids, etc.), and the term "mantises" should be used when referring to the entire order. A colloquial name for the order is "praying mantises", because of the typical "prayer-like" stance.

The Republic of Iceland

Wed, 12 Aug 2009 21:05:22 +0100

The Republic of Iceland IPA is an island country located in the North Atlantic Ocean between mainland Europe and Greenland. It has a population of about 320,000 and a total area of 103,000 km². Its capital and largest city is Reykjavík.

Located on the Mid-Atlantic Ridge, Iceland is volcanically and geologically active on a large scale; this defines the landscape. The interior mainly consists of a plateau characterized by sand fields, mountains and glaciers, while many big glacial rivers flow to the sea through the lowlands. Warmed by the Gulf Stream, Iceland has a temperate climate relative to its latitude and provides a habitable environment and nature.

The Republic of Cuba

Wed, 12 Aug 2009 21:04:46 +0100

The Republic of Cuba is an island country in the Caribbean. It consists of the island of Cuba, the Isla de la Juventud, and several archipelagos.

Havana is the largest city in Cuba and the country's capital. Santiago is the second largest Cuba Cuba is home to over 11 million people and is the most populous Insular nation in the Caribbean. Its people, culture, and customs draw from diverse sources, including the aboriginal Taíno and Ciboney peoples; the period of Spanish colonialism; the introduction of African Slaves; and its proximity to the United States. Beginning with the Cuban Revolution, Cuba has played an important political and socio-economical role in the region and in the world - notably in its relationship with its neighbor, the United States, and as a major provider of humanitarian aid to countries in the Third World.

It is true Cuba has political prisoners and no free elections, but it has very good dentistry - by Paul Holmes

It's raining cats and dogs!

Sun, 07 Jun 2009 21:26:15 +0100

Where does this phrase come from?

It originates back to the 1600s. Back then drainage was very poor and gutters overflowed with rubbish and unsavory items. It is thought that animals such as rodents lived in the thatched roofs and when it rained heavily, the dead carcasses would fall out of the sky – so coining the phrase it's raining cats and dogs!

Such a lovely thought!

Thomas Edison (1847-1931)–Milan, Ohio, USA

Thu, 09 Apr 2009 16:08:05 +0100

He did not invent the light bulb but perfected the design so it could be manufactured on as mass scale. He also created a system to distribute electricity so that his invention could be commercialised.

Edison patented an electric distribution system in 1880, which was essential to capitalise on the invention of the electric lamp. On December 17, 1880, Edison founded the Edison Electric Illuminating Company. The company established the first investor-owned electric utility in 1882 on Pearl Street Station, New York City. It was on September 4, 1882, that Edison switched on his Pearl Street generating station’s electrical power distribution system, which provided 110 volts direct current (DC) to 59 customers in lower Manhattan.