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![Iowa - USA State, Indiana - USA State, Illinois - USA State, Idaho - USA State,
Hawaii - USA State, Georgia - USA State, Florida - USA State, Delaware - USA State, Cars,
Cars II, Cars III, Connecticut - USA State, Colorado - USA State, California - USA State,
Arkansas - USA State, Arizona - USA State, Alaska - The 49th state of USA, Alabama - The
22nd state of USA, Dogs have better sense of smell, Communication, Exploring Nature, Vasco
da Gama, Marco Polo, Telegraph, Tank, Wonder World Under Water [V] - Animals with jointed
Limbs, Propeller, Machine Gun, Petroleum, Jet Engine](../images/common/subs/4to40_white.gif)
4to40.com| [1] | Wyoming - USA State  Wyoming bounded by Montana, Nebraska, South Dakota, Colorado, Utah and Idaho... by Anand Singh |
| [2] | Wisconsin - USA State Wisconsin bounded by Lake Superior, Peninsula, Michigan, Illinois, Iowa, Minnesota and Lake Michigan... by Anand Singh |
| [3] | West Virginia - USA State West Virginia bordered by Pennsylvania, Maryland, Virginia, Kentucky and Ohio... by Anand Singh |
| [4] | Washington - USA State Washington - Canadian province of British Columbia lies to north, & states of Idaho & Oregon form Washington's eastern & southern borders. Puget Sound & Pacific Ocean lie to west... by Anand Singh |
| [5] | Virginia - USA State Virginia birthplace of U.S. presidents (George Washington, Thomas Jefferson, James Madison, James Monroe, William Henry Harrison, John Tyler, Zachary Taylor, and Woodrow Wilson)... by Anand Singh |
| [6] | Vermont - USA State Vermont bordered by New Hampshire, Massachusetts, New York, Canadian province of Quebec... by Anand Singh |
| [7] | Utah - USA State Utah midway between Canada and Mexico. Bordered by Wyoming, Colorado, Arizona, Nevada and Idaho... by Anand Singh |
| [8] | Texas - USA State Texas bordered by New Mexico, Oklahoma, Arkansas and Louisiana. State capital Austin... by Anand Singh |
| [9] | Tennessee - USA State Tennessee bounded by Kentucky, Virginia, North Carolina, Georgia, Alabama, Mississippi, Arkansas and Missouri... by Anand Singh |
| [10] | South Dakota - USA State South Dakota bounded by North Dakota, Minnesota, Iowa, Nebraska, Wyoming and Montana... by Anand Singh |
| [11] | South Carolina - USA State South Carolina state capital Columbia, bounded by North Carolina and Georgia... by Anand Singh |
| [12] | Rhode Island - USA State Rhode Island bounded by Massachusetts, Rhode Island Sound, and Connecticut... by Anand Singh |
| [13] | Pennsylvania - USA State Pennsylvania bounded by Lake Erie, New York, New Jersey, Delaware, Maryland, West Virginia and Ohio... by Anand Singh |
| [14] | Oregon - USA State Oregon state capital Salem, bordered by Washington, Idaho, Nevada and California... by Anand Singh |
| [15] | Oklahoma - USA State Oklahoma bordered by Kansas, Colorado, New Mexico, Texas, Missouri and Arkansas. Nicknamed the Sooner State... by Anand Singh |
| [16] | Ohio - USA State Ohio state capital Columbus, bordered by Indiana, Michigan, Lake Erie, Pennsylvania, West Virginiat and Kentucky... by Anand Singh |
| [17] | North Dakota - USA State North Dakota center of North American continent, bounded by Montana, South Dakota, Minnesota, Manitoba and Saskatchewan... by Anand Singh |
| [18] | North Carolina - USA State North Carolina bounded on south by South Carolina, Georgia, west by Tennessee, north Virginia, and east by Atlantic Ocean... by Anand Singh |
| [19] | New York - USA State New York bordered by Vermont, Massachusetts, Connecticut, Atlantic Ocean, Pennsylvania, New Jersey, Lakes Erie, Ontario and Quebec... by Anand Singh |
| [20] | New Mexico - USA State New Mexico borders Mexico, Arizona, Colorado, Oklahoma and Texas. State capital SANTA FE... by Anand Singh |
| [21] | New Jersey - USA State New Jersey Middle Atlantic state located between New York, Pennsylvania and Delaware, bounded by Delaware and Hudson rivers... by Anand Singh |
| [22] | New Hampshire - USA State New Hampshire lies between Maine, Vermont & New England. Borders Massachusetts... by Anand Singh |
| [23] | Nevada - USA State Nevada bounded by California, Oregon, Idaho, Arizona and Utah. Nickname Silver State... by Anand Singh |
| [24] | Nebraska - USA State Nebraska bounded on north by South Dakota west by Colorado and Wyoming south by Kansas and east by Iowa and Missouri... by Anand Singh |
| [25] | Montana - USA State Montana, Mountain states. Bordering the Canadian provinces of British Columbia, Alberta, Saskatchewan, North Dakota, South Dakota, Wyoming and Idaho... by Anand Singh |
| [26] | Missouri - USA State Missouri bordered by Iowa, Illinois, Kentucky, Tennessee, Arkansas, Nebraska, Kansas and Oklahoma... by Anand Singh |
| [27] | Mississippi - USA State Mississippi borders Arkansas, Louisiana, Tennessee and Alabama. Mississippi takes name from Mississippi River... by Anand Singh |
| [28] | Minnesota - USA State Minnesota outlined by natural waterways. Bordered by Mississippi, Wisconsin, Dakotas and Iowa... by Anand Singh |
| [29] | Michigan - USA State Michigan bordered by Ohio, Indiana, Wisconsin, Illinois and Minnesota. Michigan derived from two Algonquian-Anishnabeg words, michi (large) gami (lake)... by Anand Singh |
| [30] | Massachusetts - USA State Massachusetts lies New England, Vermont, New Hampshire, Maine Rhode Island, Connecticut, New York and Atlantic Ocean... by Anand Singh |
| [31] | Maryland - USA State Maryland Middle Atlantic state, capital Annapolis, bordered by Pennsylvania, Virginia and Delaware... by Anand Singh |
| [32] | Maine - USA State Maine bordered by Canadian provinces Quebec, New Brunswick, New Hampshire and Atlantic Ocean... by Anand Singh |
| [33] | Louisiana - USA State Louisiana lies Gulf Coastal Plain, bordered by Mississippi, Gulf of Mexico, Texas and Arkansas. Sighted by Spanish, feature Mississippi River... by Anand Singh |
| [34] | Kentucky - USA State Kentucky concentrating on agriculture and mining, bordered by Illinois, Indiana, Ohio, West Virginia, Virginia, Tennessee and Missouri... by Anand Singh |
| [35] | Kansas - USA State Kansas bordered by Nebraska, Missouri, Oklahoma, and Colorado. Kansas is a Sioux word meaning people of the south wind... by Anand Singh |
| [36] | Ice Water vapour froze in the clouds and fell as snow, covering the continents so thickly that it did not melt... by Anand Singh |
| [37] | Oil Oil - younger than coal. Dates back to a more recent period in history of Earth, Mesozoic Era, lasted 225 million to 65 million years ago... by Anand Singh |
| [38] | Iowa - USA State Iowa bordered by Minnesota, South Dakota, Nebraska, Missouri, Illinois and Wisconsin... by Anand Singh |
| [39] | Indiana - USA State Indiana is bordered by Illinois, Michigan and Lake Michigan, and Ohio... by Anand Singh |
| [40] | Illinois - USA State Illinois leading agricultural and manufacturing. Bordered by Wisconsin, Lake Michigan, Indiana and Kentucky... by Anand Singh |
| [41] | Idaho - USA State Idaho, Pacific Northwest, Bounded by British Columbia, Wyoming, Montana, Utah, Nevada, Oregon and Washington... by Anand Singh |
| [42] | Hawaii - USA State Famous tourist spot, Hawaii is called Aloha State; expression of love or goodwill in Hawaiian language... by Anand Singh |
| [43] | Georgia - USA State Georgia, extends from Sea Islands, Atlantic to southern Appalachians. Georgia, bounded South Carolina, Atlantic Ocean, Alabama, Tennessee, North Carolina and Florida... by Anand Singh |
| [44] | Florida - USA State Florida, fast-developing state of the southeastern. Mostly a peninsula, Florida bordered by Alabama, Georgia, Atlantic Ocean, Straits of Florida, Gulf of Mexico and Alabama... by Anand Singh |
| [45] | Delaware - USA State Delaware, flanked by Delaware Bay, Delaware River, Atlantic Ocean, Maryland and Pennsylvania... by Anand Singh |
| [46] | Cars Bentley sport touring car, Karl Benz, Bugatti Type 41, Cadillac Coupe, Chevrolet Corvette, Chrysler Airflow, Citroen, Cord Convertible Coupe... by Anand Singh |
| [47] | Cars II Datsun, Delage D8/120, Duesenberg SJ Roadster, Ford Fiesta, Model T Ford, Ford Mustang, Ford V8 Roadster, Hispano-Suiza... by Anand Singh |
| [48] | Cars III Jaguar XKE Coupe, M.G. TC Midget, Mercedes-Benz 300 SL, Porsche 911S, Rolls-Royce Silver Ghost, Stanley Steamer, Studebaker Sedan, Volkswagen... by Anand Singh |
| [49] | Connecticut - USA State Connecticut, industrial and transportation corridor of the northeastern United States. Bordered by Massachusetts, Rhode Island, Long Island Sound and New York... by Anand Singh |
| [50] | Colorado - USA State Colorado, Mountain states, landlocked, rectangular territory. Bordered by six states: Wyoming, Nebraska, Utah, New Mexico, Oklahoma and Kansas.... by Anand Singh |
| [51] | California - USA State California, include LOS ANGELES, a major center of the entertainment and aerospace industries, and SAN FRANCISCO, a sophisticated financial center.... by Anand Singh |
| [52] | Arkansas - USA State Arkansas, Southern states of the United States, Missouri on the north and northeast, by Tennessee and Mississippi on the east, by Louisiana on the south, and by Texas and Oklahoma on the west... by Anand Singh |
| [53] | Arizona - USA State Arizona, located in the Southwest. Bordered by Utah, by Colorado, by New Mexico, by Mexico, and by California and Nevada on the west... by Anand Singh |
| [54] | Alaska - The 49th state of USA Alaska, the largest in area but one of the least populated U.S. states, lies astride the Arctic Circle... by Anand Singh |
| [55] | Alabama - The 22nd state of USA Alabama, one of the southern states of the United States, is largely rectangular in shape and is landlocked except for a short coastline along the Gulf of Mexico... by Anand Singh |
| [56] | Dogs have better sense of smell The olfactory bulb of a dog is much larger than that of a man. The moist nose of a dog also aids his sense of smell... by Manpreet |
| [57] | Communication Communication with words, Communication without words, Oral Communication, Written Communication, Non- Verbal Communication... by Manpreet |
| [58] | Exploring Nature We need to learn about nature for our survival... by Manpreet |
| [59] | Vasco da Gama He was born about 1460 at Sines, in southwest Portugal, where his father commanded the fortress... by Manpreet |
| [60] | Marco Polo ...was a Venetian explorer and merchant whose account of his travels in Asia was the primary source for the European image of the Far East... by Manpreet |
| [61] | Telegraph First telegraph message was transmitted by Morse from Washington to Baltimore in 1844 and read "What hath God wrought?"... by Manpreet |
| [62] | Tank Tanks were a decisive weapon in the two world wars of this century. Preceded by an artillery barrage... by Manpreet |
| [63] | Wonder World Under Water [V] - Animals with jointed Limbs Just as insects dominate the land, having the largest population and variety, their relatives the Crustacean dominate the waters... by B.F. Chhapgar |
| [64] | Propeller The basic idea of the propeller is the same as that of the turbine... by Manpreet |
| [65] | Machine Gun In 1865 the French officer Reffye invented a machine gun with a total of 25 fixed barrels, which fired 125 to 150 missiles a minute... by Manpreet |
| [66] | Petroleum We have no idea how long ago men first found petroleum or mineral oil... by Manpreet |
| [67] | Jet Engine The jet engine works by ejecting a stream of gas at high velocity and high pressure, to produce a thrust... by Manpreet |
| [68] | Wonder World Under Water [IV] - Sea Anemones and Jelly Fish The sea anemone has a hollow body with its mouth at the top in the center of a whorl of many finger-like projections called tentacles... by B.F. Chhapgar |
| [69] | Wonder World Under Water [III] - Sponges While the most primitive animals are made of one cell, sponges are multicellular... by B.F. Chhapgar |
| [70] | Plastic There can be no doubt that this is an age of plastics... by Manpreet |
| [71] | Electronic Computer Electronic computer represent the most advanced achievement of modern science... by Manpreet |
| [72] | X-Ray In 1895 Roentgen discovered the rays which are called after him and which he nicknamed "X-rays" because he did not what they were or where they came from... by Manpreet |
| [73] | Wonder World Under Water [II] - One-Celled Animals Our body is made up of many organs, like the stomach, the liver, the heart, the brain, kidneys , lungs... by B.F. Chhapgar |
| [74] | Wonder World Under Water [I] Nearly three-quarter of our earth is covered by water... by B.F. Chhapgar |
| [75] | Vaccines Jenner had heard of a popular belief in Gloucestershire that a person had accidentally contracted pustules by milking a cow infected with cowpox... by Manpreet |
| [76] | Invention of Helicopter In 1876, Enrico Forlanini fitted a gas-driven engine to a machine which rose to a height of 13m after a vertical take-off from the park of Milan... by Manpreet |
| [77] | Invention of Electromagnetic Machines Electricity has been known to man since ancient times... by Manpreet |
| [78] | Invention of Compass In the second century BC the compass was already known in China... by Manpreet |
| [79] | Invention of Combustion-Engine Modern civilization is entirely dependent on the internal combustion engine... by Manpreet |
| [80] | Invention of Paper Once the alphabet ha been invented, man could write; but what was he to write on?... by Manpreet |
| [81] | History of Money If people have too much of one thing and not enough of another, they can use their surplus good in exchange for the products that they need... by Manpreet |
| [82] | History of Alphabet Ever since the dawn of language and thought man must have felt the need to record his ideas and emotions in some permanent form... by Manpreet |
| [83] | History of Houses The Neolithic Age brought the first appearance of dwellings which could probably be called houses... by Manpreet |
| [84] | Discovery of Metal The period before the discovery and use of metal is called the Neolithic Age. The age of metals began with copper... by Manpreet |
| [85] | Invention of Zero The invention of zero has had a tremendous impact on the history of mankind because it made the development of higher mathematics possible... by Manpreet |
| [86] | Megaliths Megaliths are enormous stones fixed into ground and originally erected for religious purposes or to mark some important event in the community... by Manpreet |
| [87] | Discovery of Fire Fire is a discovery rather than an invention. Man had been searching since prehistoric times for a way of making fire easily and quickly... by Manpreet |
| [88] | The Hebrews - A History of Costumes We possess very few representations of Hebrew costume apart from some found in the ruins of Nineveh... |
| [89] | The Syrian and Phoenicians - A History of Costumes The most ancient known delineation of the peoples of Western Asia dates from about 2300 B.C., about the end of the Old Egyptian Kingdom... |
| [90] | The Ethiopians - A History of Costumes The dress of the Ethiopian peoples, whose territory lay to the south of Egypt, was on the whole identical with that of the Egyptians... |
| [91] | Dew Ponds Dew pond is the name applied to certain shallow saucer-shaped basins which usually contain a supply of water even during prolonged drouths when ordinary ponds at lower levels dry up... by Manpreet |
| [92] | Tides The tides are caused by the gravitational action of the sun and moon upon the rotating earth... by Manpreet |
| [93] | Bee make or gather honey? This is a disputed question. Some authorities are of the opinion that the liquid collected by bees from the nectaries of flowers does not differ materially from honey... by Manpreet |
| [94] | Discovery of SOAP It is generally believed that soap, both as a cleansing and a medicinal agent, was first made by the ancient Gauls... by Manpreet |
| [95] | Delivery Time for Elephants Estimates of the period of gestation in elephants range all the way from eighteen to twenty-two months... by Manpreet |
| [96] | Galapagos [The Giant Tortoise] - Live Forever The London Zoological Gardens contain an Elephantine tortoise from the Seychelles which is supposed to be from one hundred to two hundred years old... |
| [97] | When was ice cream first made? Ice cream as it is known today was not the product of a single discovery or invention... |
| [98] | Oldest city in the world It is generally supposed that Damascus, the chief city of Syria, is the oldest city in the world... |
| [99] | Why do a cat's eyes shine in the dark? The luminous appearance of a cat's eyes in the dark is due to the reflection of light by the tapetum lucidum... |
| [100] | Why is winter colder than summer? The seasons, spring, summer, fall and winter, occur because of the inclination of the earth's axis while the earth moves around the sun... |
| [101] | What is the function of a cat's whiskers? The most perfect organs of touch are the vibrissce or whiskers of the cat, which act as long levers in communicating... |
| [102] | The Gypsies The Gypsie's language is called 'Romany'. It resembles Sanskrit... by Manpreet |
| [103] | Dinosaurs The word 'dinosaur' comes from the Greek words meaning 'terrible lizard'... by Manpreet |
| [104] | Why is the Bermuda Triangle considered mysterious? So far more than 1000 people have lost lives in this area... by Manpreet |
| [105] | How was coal formed? Coal formation first began some 250 million years ago in an age called 'carboniferous period'... |
| [106] | How is milk converted into curd? When a little amount of curd is added to milk whole of it gets converted into curd within 4 hours... |
| [107] | The Egyptians - A History of Costumes To judge from the most ancient representation that we possess, the Egyptians of the Old Kingdom (3000 B.C.) wore a loincloth... by Manpreet |
| [108] | Introduction to Sea On Earth, the total area covered by water is 70.8 per cent... by Manpreet |
| [109] | Polar Regions The northern and southern ends of the earth's axis are known as North and South Poles respectively... by Manpreet |
| [110] | Major Mountains A mountain is a landmass elevated considerably above e its surrounding areas. Usually the land tracts, more than 300 m in height, are called mountains... by Manpreet |
| [111] | Why don't two persons have identical fingerprints? Your ten fingerprints are absolutely unique and remain practically unchanged from birth to death... |
| [112] | How to make perfume! Perfume is a blend of substances made from plant oils and synthetic materials... |
| [113] | Mummification and Burial Mummification is the method of preserving the dead bodies of animals and people artificially... |
| [114] | Creation and the Great Myths Another great city -Thebes - destined to be the religious and political capital from the Middle Kingdom onwards, the center of myths was on Amun... |
| [115] | Religion in Ancient Egypt [ Large File ] Ancient Egyptians lived in an intensely religious society with a polytheism that was both complex and ritualized... |
| [116] | King Cobra King cobras are usually found in India, Vietnam, southern China, Philippines, Malaysia and Indonesia... |
| [117] | The Ancient Egyptians [ Large File ] The Ancient Egyptians and their gods functioned for a period of time approximately twice as long as our current Christian era... |
| [118] | Fox If there is one animal that lives by its wits then it is our very own Fox. Sheer ingenuity has made him a survivor literally... |
| [119] | Truth About Bats Bats are among the world's least appreciated and most endangered animals, thanks to centuries of myth and superstition... |
| [120] | Tornadoes |