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...

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...

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, ...

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

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 ...

Cambodia is located in South East Asia and borders Thailand, Laos and Vietnam. Oil and natural gas deposits were found underneath territorial waters in 2005 and will be extracted in 2011, which could be very beneficial to their economy.

Capital: Phnom Pehn

Currency: Riel

Language: Khmer

Population: 13 388 910

Lithuania is one of the three Baltic states. Situated along the South Eastern shore of the Baltic Sea, it shares borders with Latvia to the north, Belarus to the southeast, Poland, and the Russian exclave of the Kaliningrad Oblast to the southwest.

Independence from the Russian Empire (1918)

Entered EU: 1 May 2004
Currency: Lithuanian litas (Lt)
Capital:(and largest city) Vilnius
Official languages: Lithuanian
Government: Semi-presidential republic

President: Valdas Adamkus  
Prime Ministe...

The Great Barrier Reef – The beautiful Great Barrier Reef is the single largest structure made by living organisms; it can even be seen from outer space. It is located off the coast of Queensland, Australia, in the Coral Sea within the South Pacific Ocean. It is comprised of over 2 900 individual reefs, 900 islands and is the largest coral system in the world. The reef was chosen as a world heritage site in 1981 and is one of the 7 natural wonders of the world.

比干，子姓，沫邑人（今卫辉市北）。生于殷帝乙丙子之七祀（公元前1092年夏历四月初四日），卒于公元前1029年。一生忠君爱国倡导“民本清议，士志于道。”为殷商贵族商王太丁之子，名干。比干幼年聪慧，勤奋好学，20岁就以太师高位辅佐帝乙，又受托孤重辅帝辛。干从政40多年，主张减轻赋税徭股，鼓励发展农牧业生产，提倡冶炼铸造，富国强兵。商末帝辛纣王暴虐�...

商朝是中国历史上的第二个王朝，与夏、周并称为中国的“三代”，在中国历史上有着相当重要的地位。据传说，商王的祖先是五帝的后代之一。

约在公元前16世纪，一个以鸟为图腾的氏族——商在黄河下游崛起，其首领成汤深得民心；在大臣伊尹、仲虺等人的大力辅佐下，开始了伐桀的战争。先消灭了个葛、韦、顾、昆、吾等夏的盟国，翦除了夏桀的羽翼，后又在有娀...

四千多年前，夏部落首领禹因治水有功，得到了虞舜的重用并最终将部落联盟首领之位禅让于他，是夏王朝的开端。大禹死后，其子启即位，即历史上所谓的“大禹传子”，宣告了部落联盟“禅让制”的结束和封建世袭制的开始。

然而夏的统治并不巩固，启在位的时代就发生了伯益叛乱；启之子太康也治国无方，当政期间更是战乱纷纷，最后被东夷的后羿夺取了统治权，�...

Hindus believe in Karma, reincarnation and dharma which is personal duty. There is no one founder. It’s the world’s 3rd largest religion after Christianity and Islam with a billion followers. 905 million of these live in India. Hindus do not eat cows because cows are holy. Hindu society honours the cow as a symbol of unselfish giving. Cow–slaughter is legally banned in almost all states of India.

Offshoots of the religion – Sikhs, Buddhism, Jainism.

Main gods – Rama, Sita brother ...

The Phonograph.

Edison invented the first sound recording device which was patented on February 19, 1878.

He attached a needle to a telephone receiver and placed it close to a foil cylinder. The needle made indentations in the foil cylinder recording the vibrations caused by the sound of the voice. He was able to play back the message he had created realising he had invented a device to record sound.  

This brought him international fame.

In May 1889, the first "phonograph parlor" opened ...

罗斯柴尔德家族

　19世纪的欧洲有“六大强国”之说。这六大强国是指大不列颠、普鲁士、奥匈帝国、法兰西、俄罗斯和罗斯柴尔德(Rothschild)家族。因此，罗斯柴尔德家族常常被称为“第六帝国”。

　　在英语里，罗斯柴尔德甚至一度成了富豪的代名词。当某人发了财，变得财大气粗，人们就会说：“Look，he is a Rothschild！”(“瞧，他是个罗斯柴尔德！”)

　　至于这个家庭...

●出生日期：1928年7月29日
●出生地点：潮州市北门街面线巷五号的祖家（今属潮州市湘桥区）
●星座：狮子座
●生肖：龙
●籍贯：广东潮州
●绰号：幼时校友叫他“李大头”

家庭情况

●父亲李云经，母亲庄碧琴
●弟弟李嘉昭，已故，妹妹李素华
●已婚，妻子庄月明，跟李嘉诚诞下两子：长子李泽钜，已婚，妻子王富信，诞下一女李燕宁；幼子李泽楷

人生经历

⊕1928年�...

山茶是中国传统名花，世界名花之一，也是中国云南省省花。因其植株形姿优美，叶浓绿而光泽，花形艳丽缤纷，而受到全世界园艺界的珍视。

中国山茶的栽培早在隋唐时代就已进入宫廷和百姓庭院了。到了宋代，栽培山茶花之风日盛。南宋诗人范成大曾以“门巷欢唿十里寺，腊前风物已知春”的诗句，来描写当时成都海六寺山茶花的盛况。明李时珍的《本草纲目》，王�...