Beauty Parlour

A beauty salon or beauty parlor (International spelling: beauty parlour) (or sometimes beauty shop) is an establishment dealing with cosmetic treatments for men and women. Other variations of this type of business include hair salons and spas.
There is a distinction between a beauty salon and a hair salon and although many small businesses do offer both sets of treatments; beauty salons provide more generalized services related to skin health, facial aesthetic, foot care, aromatherapy, — even meditation, oxygen therapy, mud baths, and innumerable other services.
Beauty treatments
Massage for the body is a popular beauty treatment, with various techniques offering benefits to the skin (including the application of beauty products) and for increasing mental well-being and relaxation.
Facials refers to a treatment for the face.
Manicure refers to a treatment for the hands, incorporating the fingernails and cuticles and often involving the application of nail polish.
Pedicure refers to a treatment for the feet, incorporating the toenails and the softening or removal of calluses.   Manicures and pedicures take place at nail salons.
Beauty salons offer treatments such as waxing and threading for hair removal.

Jainism

Jainism, is an Indian religion that prescribes a path of non-violence towards all living beings. Its philosophy and practice emphasize the necessity of self-effort to move the soul towards divine consciousness and liberation.
Any soul that has conquered its own inner enemies and achieved the state of supreme being is called a jina (“conqueror” or “victor”).
The ultimate status of these perfect souls is called siddha. Ancient texts also refer to Jainism as shramana dharma (self-reliant) or the “path of the niganthas” (those without attachments or aversions).
Jain doctrine teaches that Jainism has always existed and will always exist, although historians date the foundation of the organized or present form of Jainism to sometime between the 9th and the 6th century BC.
Like most ancient Indian religions, Jainism may have its roots in the Indus Valley Civilization, reflecting native spirituality prior to the Indo-Aryan migration into India.
Other scholars suggested the shramana traditions were separate and contemporaneous with Indo-Aryan religious practices of the historical Vedic religion.
Contemporary Jainism is a small but influential religious minority with as many as 4.2 million followers in India, and successful growing immigrant communities in North America, Western Europe, the Far East, Australia and elsewhere.
Jains have significantly influenced and contributed to ethical, political and economic spheres in India. Jains have an ancient tradition of scholarship and have the highest degree of literacy for a religious community in India. Jain libraries are the oldest in the country.

Conquests of Alexander in India

In 327 BCE Alexander the Great began his foray into Punjab. King Ambhi, ruler of Taxila, surrendered the city to Alexander. Many people had fled to a high fortress/rock called Aornos.
Aornos was taken by Alexander by storm after a successful siege. Alexander fought an epic battle against the Indian monarch Porus in the Battle of Hydaspes (326). After victory, Alexander made an alliance with Porus and appointed him as satrap of his own kingdom. Alexander continued on to conquer all the headwaters of the Indus River.
East of Porus’ kingdom, near the Ganges River, was the powerful kingdom of Magadha, under the Nanda Dynasty.
According to Plutarch, at the time of Alexander’s Battle of the Hydaspes River, the size of the Magadha’s army further east numbered 200,000 infantry, 80,000 cavalry, 8,000 chariots, and 6,000 war elephants, which was discouraging for Alexander’s men and stayed their further progress into India:
“ As for the Macedonians, however, their struggle with Porus blunted their courage and stayed their further advance into India. For having had all they could do to repulse an enemy who mustered only twenty thousand infantry and two thousand horse, they violently opposed Alexander when he insisted on crossing the river Ganges also, the width of which, as they learned, was •thirty-two furlongs, its depth •a hundred fathoms, while its banks on the further side were covered with multitudes of men-at‑arms and horsemen and elephants. For they were told that the kings of the Ganderites and Praesii were awaiting them with eighty thousand horsemen, two hundred thousand footmen, eight thousand chariots, and six thousand fighting elephants. And there was no boasting in these reports. For Androcottus, who reigned there not long afterwards, made a present to Seleucus of five hundred elephants, and with an army of six hundred thousand men overran and subdued all India. ”
–Plutarch, Parallel Lives, “Life of Alexander”
Exhausted and frightened by the prospect of facing another giant Indian army at the Ganges River, his army mutinied at the Hyphasis (modern Beas), refusing to march further East. Alexander, after the meeting with his officer Coenus, was convinced that it was better to return.
Alexander was forced to turn south, conquering his way down the Indus to the Indian Ocean. He sent much of his army to Carmania (modern southern Iran) with his general Craterus, and commissioned a fleet to explore the Persian Gulf shore under his admiral Nearchus, while he led the rest of his forces back to Persia by the southern route through the Gedrosia (modern Makran in southern Pakistan).
Alexander left behind Greek forces which established themselves in the city of Taxila, now in Pakistan. Several generals, such as Eudemus and Peithon governed the newly established province until around 316 BCE. One of them, Sophytes (305–294 BCE), was an independent Greek prince in the Punjab.

Trigonometry

Trigonometry (from Greek trigōnon “triangle” + metron “measure”) is a branch of mathematics that studies triangles and the relationships between their sides and the angles between these sides.
Trigonometry defines the trigonometric functions, which describe those relationships and have applicability to cyclical phenomena, such as waves.
The field evolved during the third century BC as a branch of geometry used extensively for astronomical studies. It is also the foundation of the practical art of surveying.   Trigonometry basics are often taught in school either as a separate course or as part of a precalculus course.
The trigonometric functions are pervasive in parts of pure mathematics and applied mathematics such as Fourier analysis and the wave equation, which are in turn essential to many branches of science and technology.
Spherical trigonometry studies triangles on spheres, surfaces of constant positive curvature, in elliptic geometry. It is fundamental to astronomy and navigation. Trigonometry on surfaces of negative curvature is part of Hyperbolic geometry.
History
Sumerian astronomers introduced angle measure, using a division of circles into 360 degrees. They and their successors the Babylonians studied the ratios of the sides of similar triangles and discovered some properties of these ratios, but did not turn that into a systematic method for finding sides and angles of triangles.
The ancient Nubians used a similar methodology. The ancient Greeks transformed trigonometry into an ordered science.   Classical Greek mathematicians (such as Euclid and Archimedes) studied the properties of chords and inscribed angles in circles, and proved theorems that are equivalent to modern trigonometric formulae, although they presented them geometrically rather than algebraically. Claudius Ptolemy expanded upon Hipparchus’ Chords in a Circle in his Almagest.
The modern sine function was first defined in the Surya Siddhanta, and its properties were further documented by the 5th century Indian mathematician and astronomer Aryabhata.
These Greek and Indian works were translated and expanded by medieval Islamic mathematicians. By the 10th century, Islamic mathematicians were using all six trigonometric functions, had tabulated their values, and were applying them to problems in spherical geometry.
At about the same time, Chinese mathematicians developed trigonometry independently, although it was not a major field of study for them. Knowledge of trigonometric functions and methods reached Europe via Latin translations of the works of Persian and Arabic astronomers such as Al Battani and Nasir al-Din al-Tusi.
One of the earliest works on trigonometry by a European mathematician is De Triangulis by the 15th century German mathematician Regiomontanus. Trigonometry was still so little known in 16th century Europe that Nicolaus Copernicus devoted two chapters of De revolutionibus orbium coelestium to explaining its basic concepts.

Ripon Building

Ripon Building is the seat of the Chennai Corporation (Madras Corporation) in Chennai (Madras), Tamil Nadu. This is a fine example of Indo-Saracenic style of architecture, a combination of three types of architectural styles – Gothic, Ionic and Corinthian.
The Ripon Building is white in colour and is located near the Central station in Chennai. Commissioned in 1913, it was built by Loganatha Mudaliar.
It took 4 years to build at a cost of 750,000. Ripon building was named after Lord Ripon, Governor-General of British India and the Father of local self-government.
Earl of Minto, the then Viceroy and Governor General of India laid the foundation on 12 December 1909.   The Municipal Corporation of Madras, after functioning from several other places, settled at Ripon building in 1913, with P.L. Moore as the President of the Municipal Corporation at the time of the inauguration.
Building Information
The building is rectangular and is 85 meters long and 32 metres wide.
The first of its three floors offers about 2,800 square metres of space.
Its central tower is 43 metres tall and has a clock 2.5 metres in diameter.
The walls were constructed with stock bricks, set and plastered with lime mortar.
The roofs are supported with teak wood joists. The original flooring of the ground floor was Cuddapah Slate. This has now been replaced with marble.
One of the main attractions Yof the building is the Westminster Quarter chiming clock. This was installed by Oakes and Co. in 1913. The clock has a mechanical key system, which is wound every day. There are a total of 4 bells, which were cast by Gillet and Johnston in 1913.

WHAT IS Email ?

Computer engineer, Ray Tomlinson invented internet based email in late 1971. Under ARPAnet several major innovations occurred: email (or electronic mail), the ability to send simple messages to another person across the network (1971).
Ray Tomlinson worked as a computer engineer for Bolt Beranek and Newman (BBN), the company hired by the United States Defense Department to build the first Internet in 1968.
Ray Tomlinson was experimenting with a popular program he wrote called SNDMSG that the ARPANET programmers and researchers were using on the network computers (Digital PDP-10s) to leave messages for each other.
SNDMSG was a “local” electronic message program. You could only leave messages on the computer that you were using for other persons using that computer to read.
Tomlinson used a file transfer protocol that he was working on called CYPNET to adapt the SNDMSG program so it could send electronic messages to any computer on the ARPANET network.
 
The @ Symbol
Ray Tomlinson chose the @ symbol to tell which user was “at” what computer. The @ goes in between the user’s login name and the name of his/her host computer.
 
First Email
The first email was sent between two computers that were actually sitting besides each other. However, the ARPANET network was used as the connection between the two. The first email message was “QWERTYUIOP”.
Ray Tomlinson is quoted as saying he invented email,”Mostly because it seemed like a neat idea.” No one was asking for email.

Intel

In 1968, Robert Noyce and Gordon Moore were two unhappy engineers working for the Fairchild Semiconductor Company who decided to quit and create their own company at a time when many Fairchild employees were leaving to create start-ups. People like Noyce and Moore were nicknamed the “Fairchildren“.
Robert Noyce typed himself a one page idea of what he wanted to do with his new company, and that was enough to convince San Francisco venture capitalist Art Rock to back Noyce’s and Moore’s new venture.
Rock raised $2.5 million dollars in less than 2 days by selling convertible debentures. Art Rock became the first chairmen of Intel.
Intel Trademark  
The name “Moore Noyce” was already trademarked by a hotel chain, so the two founders decided upon the name “Intel” for their new company, a shortened version of “Integrated Electronics“. However, the rights to the name had to bought from a company called Intelco first.
Intel Products
In 1969, Intel released the world’s first metal oxide semi-conductor (MOS) static ram, the 1101. Also in 1969, Intel’s first money making product was the 3101 Schottky bipolar 64-bit static random access memory (SRAM) chip. A year later in 1970, Intel introduced the 1103, DRAM memory chip.
In 1971, Intel introduced the now-famous world’s first single chip microprocessor (computer on a chip), the Intel 4004, invented by Intel engineers Federico Faggin, Ted Hoff, and Stanley Mazor.
In 1972, Intel introduced the first 8-bit microprocessor the 8008. In 1974, the Intel 8080 microprocessor was introduced with ten times the power of the 8008.
In 1975, the 8080 microprocessor was used in one of the first consumer home computer – the Altair 8800 that was sold in kit form.
In 1976, Intel introduced the first micro-controllers, the 8748 and 8048, a computer-on-a-chip optimized to control electronic devices.
Though produced by theUSA’s Intel Corporation, the 1993 Pentium was basically the outcome of a research conducted by an Indian engineer. Popularly known as the Father of the Pentium chip, the inventor of the computer chip is Vinod Dham.

Teddy Bear

Theodore (Teddy) Roosevelt, the 26th president of the United States, is the person responsible for giving the teddy bear his name. On November 14, 1902, Roosevelt was helping settle a border dispute between Mississippi and Louisiana.
During his spare time he attended a bear hunt in Mississippi. During the hunt, Roosevelt came upon a wounded young bear and ordered the mercy killing of the animal.
The Washington Post ran a editorial cartoon created by the political cartoonist Clifford K. Berryman that illustrated the event.
The cartoon was called “Drawing the Line in Mississippi” and depicted both state line dispute and the bear hunt.   At first Berryman drew the bear as a fierce animal, the bear had just killed a hunting dog.
Later, Berryman redrew the bear to make it a cuddly cub. The cartoon and the story it told became popular and within a year, the cartoon bear became a toy for children called the teddy bear.
Who made the first toy bear called teddy bear?  
Well there are several stories, below is the most popular one:   Morris Michtom made the first official toy bear called the teddy bear.
Michtom owned a small novelty and candy store in Brooklyn, New York. His wife Rose was making toy bears for sale in their store.
Michtom sent Roosevelt a bear and asked permission to use the teddy bear name. Roosevelt said yes. Michtom and a company called Butler Brothers, began to mass-produce the teddy bear. Within a year Michtom started his own company called the Ideal Novelty and Toy Company.

Ice Skates

The oldest pair of skates known date back to about 3000 B.C., found at the bottom of a lake inSwitzerland. The skates were made from the leg bones of large animals, holes were bored at each end of the bone and leather straps were used to tie the skates on. An old Dutch word for skate is “schenkel” which means “leg bone”.
Around the 14th Century, the Dutch started using wooden platform skates with flat iron bottom runners. The skates were attached to the skater’s shoes with leather straps.
Poles were used to propel the skater. Around 1500, the Dutch added a narrow metal double edged blade, making the poles a thing of the past, as the skater could now push and glide with his feet (called the “Dutch Roll”).
In 1848, E. V. Bushnell ofPhiladelphia, PA invented the first all steel clamp for skates.
In 1865, Jackson Haines, a famous American skater, developed the two plate all metal blade. The blade was attached directly to Haines’ boots.
The skater became famous for his new dance moves, jumps and spins. Haines added the first toe pick to skates in the 1870′s, making toe pick jumps possible.
The first artificial ice rink (mechanically-refrigerated) was built in 1876, atChelsea, London,England and was named the Glaciarium. It was built near the King’s Road inLondon by John Gamgee.
In 1914, John E. Strauss, a blade maker fromSt. Paul, Minnesota, invented the first closed toe blade made from one piece of steel, making skates lighter and stronger.
The largest outdoor ice rink is the Fujikyu Highland Promenade Rink inJapan, built in 1967 and boasts an ice area of 165,750 square feet– equal to 3.8 acres.

Facts About Rain

1. The umbrella was originally invented to protect people from the hot sun.
2. Rain drops can fall at speeds of about 22 miles an hour.
3. Rain starts off as ice or snow crystals at cloud level.
4. Light rain is classified as being no more then 0.10 inchese of rain an hour.
5. Heavy rain is classified as being more then 0.30 inches of rain an hour.
6. Louisiana is the wettest state in the U.S, which receoved an annual rainfall of 56 inches.
7. Rain drops range in size from 0.02 inches to about .031 inches.
8. Rain drops do not fall in a tear drop shape, they originally fall in the shave of a flat oval.
9. Rain that freezes before it hits the ground is known as frozen rain.
10. Rain is recycled water that evaporated from our worlds lakes, rivers, oceans, seas etc.

Mango

The mango is known as the ‘king of fruit’ throughout the world.
The Mango is a member of the cashew family of flowering plants; other species include the pistachio tree and poison ivy.
The name ‘mango’ is derived from the Tamil word ‘mangkay’ or ‘man-gay’. When the Portuguese traders settled in Western India they adopted the name as ‘manga’.
Mangos originated in East India, Burma and the Andaman Islands bordering the Bay of Bengal. Persian traders took the mango into the middle east and Africa, from there the Portuguese brought it to Brazil and the West Indies. Mango cultivars arrived in Florida in the 1830′s and in California in the 1880′s.
The Mango tree is a symbol of love.
Mango leaves are used at weddings to ensure the couple bear plenty of children (though it is only the birth of the male child that is celebrated – again by hanging mango leaves outside the house).
Many Southeast Asian kings and nobles had their own mango groves; with private cultivars being sources of great pride and social standing, hence began the custom of sending gifts of the choicest mangoes.
Burning of mango wood, leaves and debris is not advised – toxic fumes can cause serious irritation to eyes and lungs.
Mango leaves are considered toxic and can kill cattle or other grazing livestock.
Mangos are bursting with protective nutrients. The vitamin content depends upon the variety and maturity of the fruit, when the mango is green the amount of vitamin C is higher, as it ripens the amount of beta carotene (vitamin A) increases.
There are over 20 million metric tons of mangos grown throughout the tropical and sub-tropical world. The leading mango producer is India, with very little export as most are consumed within the country. Mexico and China compete for second place, followed by Pakistan and Indonesia. Thailand, Nigeria, Brazil, Philippines and Haiti follow in order.
The fruit of the mango is called a Drupe – consisting of the mesocarp (edible fleshy part) and endocarp (large woody, flattened pit).
The mango is a member of the Anachardiaceae family. Other distant relatives include the cashew, pistachio, Jamaica plum, poison ivy and poison oak.
The over 1,000 known mango cultivars are derived from two strains of mango seed – monoembryonic (single embryo) and polyembryonic (multiple embryo). Monoembryonic hails from the Indian (original) strain of mango, polyembryonic from the Indochinese.
Dermatitis can result from contact with the resinous latex sap that drips from the stem end when mangos are harvested. The mango fruit skin is not considered edible.
Mangiferin – rich in splenocytes, found in the stem bark of the mango tree has purported potent immunomodulatory characteristics – believed to inhibit tumor growth in early and late stages.
Mangoes contain as much vitamin C as an orange.
To choose a Mango gently squeeze the ‘nose’ of the fruit. If there is slight give then the mango is ripe. Color is not the best indicator of ripeness.
A Mango stored at 55 degrees will last for up to two weeks. Do not refrigerate.
Mangoes are some of the best sources of beta carotene; they contain 20 percent more than cantaloupe and 50 percent more than apricots.

Footwear

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Sandals originated in warm climates where the soles of the feet needed protection but the top of the foot needed to be cool.


4,000 years ago the first shoes were made of a single piece of rawhide that enveloped the foot for both warmth and protection.
In Europe pointed toes on shoes were fashionable from the eleventh to the fifteenth centuries.
In the Middle East heels were added to shoes to lift the foot from the burning sand.
In Europe in the sixteenth and seventeenth centuries heels on shoes were always colored red.
Shoes all over the world were identical until the nineteenth century, when left- and right-footed shoes were first made in Philadelphia.
In Europe it wasn’t until the eighteenth century that women’s shoes were different from men’s.
Six-inch-high heels were worn by the upper classes in seventeenth-century Europe. Two servants, one on either side, were needed to hold up the person wearing the high heels.
Sneakers were first made in America in 1916. They were originally called keds.
Boots were first worn in cold, mountainous regions and hot, sandy deserts where horse-riding communities lived. Heels on boots kept feet secure in the stirrups.
The first lady’s boot was designed for Queen Victoria in 1840.

CHINA

China is the most populous nation on earth. With more than 1.2 billion people, it contains one-fifth of the world’s population.
Approximately 93 percent of the people are Han Chinese; the remainder is made up of 350 minority groups — 55 of them are commonly recognized — which have their own language, culture, and religion.
China has the third largest landmass of any nation. Only Russia and Canada are larger. China is slightly larger than the United States.
There are 31 provinces, autonomous regions and special municipalities. Hong Kong, which reverted to China in 1997, is referred to as a special administrative region.
The four largest cities, Chongqing, Shanghai, Beijing, and Tianjin are administered directly by the central government.
Approximately half the land is occupied by minority people groups such as Mongols, Tibetans, Yugur, and Bai. Only about 15 percent of China’s land is farmable, so there is a great strain on the land to feed so many people.
Mandarin Chinese (also known as Putonghua) is the primary language, and is spoken by more than 70 percent of the population. Cantonese prevails in Hong Kong and in parts of the Guangdong Province. Many other dialects abound.
With its first recorded history dating back to 1500 BC, China claims the world’s oldest existing civilization.
During most of its history, China was ruled by a series of dynasties. The last dynasty ended in 1911 with the establishment of a republic by Dr. Sun Yat-sen.
From 1911 until 1949 there was great turmoil in China as various factions fought for supremacy, ending with the establishment of the People’s Republic of China on October 1, 1949.
Since 1949, the country has been under communist rule. China’s governments claims that during that time there has been an eradication of opium, an increased life expectancy, and a reduction of the infant mortality rate.
But, there have also been periods of great turmoil, the worst of which was the Cultural Revolution, officially lasting from 1966-1970, though many historians extend its effects until the death of Mao Ze-dong in 1976.
The Cultural Revolution was a period of unprecedented turmoil in which society was virtually turned upside down.
Students, in the form of Red Guard, went on a rampage. Schools and universities were closed, intellectuals and artists of all kinds were dismissed, persecuted, sent to labor in the countryside, or killed.
Temples, monuments, and works of art were defaced and destroyed. All religious institutions were closed and religious workers were sent to prison or to work in factories or in the countryside. This was a time of suffering for all the Chinese people. Its effects are still felt in society.
Except for a few minority groups and some rural dwellers, families are strongly discouraged from having more than one child.
Those who ignore the admonitions can be severely penalized. The government takes pride in this intrusive manner of population control.
China’s economy has been improving rapidly since 1979 when China opened the doors to foreign investment and opened the economy to more private initiative.
This has resulted in a vast increase of consumer activity, so that upper middle class families have many symbols of middle class affluence: refrigerators, telephones, color televisions, video CD players, and more.
Commercialism and materialism are increasingly popular in China. However, there is still terrible poverty as well.
Even though the Communist government encourages atheism, there are five recognized religions in China today: Buddhism, Taoism, Islam, Catholicism, and Protestant Christianity.
Ancestor worship is a daily practice for many. Confucianism is not officially a religion, though through the centuries, there have periodically been temples devoted to the worship of Confucius.
In any case, Confucianism remains a major element of the Chinese value system. The government cracked down on a very popular Falunggung religious practice in 1999, terming it a dangerous cult.
Robert Morrison was the first Protestant to introduce Christianity in China. He arrived in Canton in 1807.
From that time until 1949, hundreds of sending agencies sent thousands of missionaries to serve in China. China was a difficult mission field; converts came slowly. In 1949 there were no more than 750,000 Protestant Christians in China.
After all the foreign missionaries left China in the early 1950s and all religious institutions were closed from about 1966 because of the Cultural Revolution, it was feared that Christianity might have died out once again.
But, when the churches began to open up in 1979 it was discovered, even to the Chinese Christians’ amazement, that there were at least 6 million Christians.
No longer foreign, all Chinese churches are just that: indigenous Chinese churches, and thousands of Chinese, young and old, are turning to Christ every day.
Nobody really knows how many Christians there are in China. Accurate statistics are hard to come by because there is no systematic or standard reporting system and the numbers change rapidly.
Estimates for members of registered (government sanctioned) congregations range up to 15-20 million, with more than 37,000 congregations meeting in church buildings referred to as churches and 25,000 meeting in other locations, referred to as meeting points.
But there are also many millions of believers, perhaps 45-80 million of them, who meet in house churches that are not government approved.
Even by placing the estimate at the high end of 100 million total Christians, one is reminded that there are still more than one billion Chinese who don’t know Christ!
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Watch

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The use of quartz in watches makes use of a long-known type of electricity known as piezoelectricity. Piezoelectricity is the current which flows from or through a piece of quartz when the quartz is put under electrical and/or mechanical pressure (piezo is from the Greek verb meaning “to press”).
The oldest means of determining time is by observing the location of the sun in the sky. When the sun is directly overhead, the time is roughly 12:00 noon.
A slightly later development, and one less subject to an individual’s judgment, is the use of a sundial. During the daylight hours, sunlight falls on a vertical pole placed at the center of a calibrated dial, thus casting a shadow on the dial and providing the reader with a relatively accurate time reading.
The invention of the mechanical clock in the fourteenth century was a major advancement—it provided a more concise and consistent method of measuring time.
The mechanical clock includes a complicated series of wheels, gears, and levers powered by a falling weights and with a pendulum (or later a wound-up spring). These pieces together moved the hand or hands on a dial to show the time.
The addition of chimes or gongs on the hour, half hour, and quarter hour followed soon afterward. By the eighteenth century, smaller clocks for the home were available, and, unlike their predecessors, were closed and sealed in a case.
Developments in metal technology and in miniaturization, the lubrication of small parts, and the use of first, natural sapphires (and then artificial sapphires) at the spots that received the most stress (the jeweled movement) all became integral components of horological science.
Small pocket watches, perhaps two to three inches (five to seven centimeters) in diameter, were available by the end of the nineteenth century. Mechanical wristwatches were an everyday item in the United States by the 1960s. And yet, the central problem faced by watch and clockmakers remained the same: mechanical parts wear down, become inaccurate, and break.
In the years immediately following World War II, interest in atomic physics led to the development of the atomic clock. Radioactive materials emit particles (decayed) at a known, steady rate.
The parts of a mechanical clock that ratcheted to keep the time could be replaced by a device that stimulated the watch movement each time a particle was emitted by the radioactive element. Atomic clocks, incidentally, are still made and sold, and they are found to be consistently accurate.
With the development of the microchip in the 1970s and 1980s, a new type of watch was invented. Wristwatches that mixed microchip technology with quartz crystals became the standard; there are few non-quartz wristwatches made today.
The microchip is utilized to send signals to the dial of the watch on a continual basis. Because it is not a mechanical device with moving parts, it does not wear out.
A quartz watch uses the electricity from a piece of quartz subjected to the electricity from a battery to send a regular, countable series of signals (oscillations) to one or more microchips. (Electrical wall clocks, in contrast, use the regularity of wall current to keep track of time.)
The most accurate quartz watches are those in which the time appears in an electronically controlled digital display, produced via a light-emitting diode (LED) or a liquid crystal display (LCD).
It is possible, of course, to have the microprocessor send its signals to mechanical devices that make hands move on the watch face, creating an analog display.
But because the hands are mechanically operated through a portion of the watch known as a gear train, analogue watches usually are not as accurate as digitals and are subject to wear.
Both types of watches achieve tremendous accuracy, with digital watches commonly being accurate to within three seconds per month.

9 interesting confusions

1. Can you cry under water ?

2. Do fishes ever get thirsty ?

3. Why don't birds fall of trees when they sleep ?

4. Why is it called building when it is already built ?

5. When they say dogs food is new and improved, who tastes it ?

6. "I Love You" is not a question then why does it need an answer ?

7. Why does round pizza come in a square box ?

8. Why doesn't glue stick to its bottle ?

9. If money doesn't grow on trees then why do banks have branches ?

Copper

Facts about the Definition of the Element Copper
A ductile, malleable, reddish-brown metallic element that is an excellent conductor of heat and electricity and is widely used for electrical wiring, water piping, and corrosion-resistant parts, either pure or in alloys such as brass and bronze. The most common uses of Copper are in Copper sulfate, Hammered copper, Tubing, pipes – Plumbing, Wire, Electromagnets, Statues, Watt’s steam engine, Vacuum tubes, Musical instruments, Component of coins, Cookware and Cutlery. A Copper Reaction involves a process in which Copper is mixed with another substance which react to form something else.

Interesting Facts about the Origin and Meaning of the element name Copper
The name originates from the Latin word cyprium, after the island of Cyprus. Copper was associated with the goddess named Aphrodite / Venus in Greek and Roman mythology. The island of Cyprus was sacred to the goddess. In alchemy, the symbol for copper was also the symbol for the planet Venus. In Greek times, the metal was known by the name Chalkos. In Roman times, it became known as Cyprium because so much of it was mined in Cyprus.

Facts about the Classification of the Element Copper
Copper is classified as a “Transition Metal” which are located in Groups 3 – 12 of the Periodic Table. An Element classified as a Transition Metals is ductile, malleable, and able to conduct electricity and heat.

Occurrence of the element Copper in the Atmosphere
Obtained from chalcopyrite, coveline, chalcosine
Common Uses of Copper
Copper sulfate
Hammered copper
Tubing, pipes – Plumbing
Wire
Sheets
Electromagnets
Statues
Watt’s steam engine
Vacuum tubes
Musical instruments
Component of coins
Cookware
Cutlery

The Properties of the Element Copper
Name of Element : Copper
Symbol of Element : Cu
Atomic Number of Copper : 29
Atomic Mass: 63.546 amu
Melting Point: 1083.0 °C – 1356.15 °K
Boiling Point: 2567.0 °C – 2840.15 °K
Number of Protons/Electrons in Copper : 29
Number of Neutrons in Copper : 35
Crystal Structure: Cubic
Density @ 293 K: 8.96 g/cm3
Color of Copper : red / orange / brown

Valcanoes

A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur.
In an eruption, gases and rock shoot up through the opening and spill over or fill the air with lava fragments. Eruptions can cause lava flows, hot ash flows, mudslides, avalanches, falling ash and floods.
The danger area around a volcano covers about a 20-mile radius.
Fresh volcanic ash, made of pulverized rock, can be harsh, acidic, gritty, glassy and smelly. The ash can cause damage to the lungs of older people, babies and people with respiratory problems.
Volcano eruptions have been known to knock down entire forests.
An erupting volcano can trigger tsunamis, flash floods, earthquakes, mudflows and rockfalls.
More than 80% of the earth’s surface is volcanic in origin. The sea floor and some mountains were formed by countless volcanic eruptions. Gaseous emissions from volcano formed the earth’s atmosphere.
There are more than 500 active volcanoes in the world. More than half of these volcanoes are part of the “Ring of Fire,” a region that encircles the Pacific Ocean.
Active volcanoes in the U.S. are found mainly in Hawaii, Alaska, California, Oregon and Washington, but the greatest chance of eruptions near areas where many people live is in Hawaii and Alaska.
Even though the volcanic eruption in Iceland was relatively small, the ash cloud that was produced disrupted European air travel for six days in April 2010. The eruption created the highest level of air travel disruption World War II.
Crater Lake in Oregon formed from a high volcano that lost its top after a series of tremendous explosions about 6,600 years ago.

Kilimanjaro

Elevation: 19,340 feet
Location: Tanzania, east Africa
The meaning and origin of the name Kilimanjaro is unknown. It is thought to be a combination of the Swahili word Kilima, meaning “mountain,” and the KiChagga word Njaro, loosely translated as “whiteness,” giving the name White Mountain.
Kilimanjaro, the highest mountain in Africa and fourth highest of the Seven Summits, is considered the tallest freestanding mountain in the world, rising 15,100 feet (4,600 meters) from base to summit.
Kilimanjaro is composed of three distinct volcanic cones: Kibo 19,340 feet (5,895 meters); Mawenzi 16,896 feet (5,149 meters); and Shira 13,000 feet (3,962 meters). Uhuru Peak is the highest summit on Kibo’s crater rim.
Kilimanjaro is a giant stratovolcano that began forming a million years ago when lava spilled from the Rift Valley zone. The mountain was built by successive lava flows. Two of its three peaks—Mawenzi and Shira—are extinct while Kibo, the highest peak is dormant and could erupt again.
Kilimanjaro has 2.2 square kilometers of glacial ice and is losing it quickly due to global warming. The glaciers have shrunk 82% since 1912 and declined 33% since 1989.
Kilimanjaro lies within the 756-square-kilometer Kilimanjaro National Park, a UNESCO World Heritage Site, and is one of the few places on earth that encompasses every ecological life zone including tropical jungle, savannah, and desert to montane forests, subalpine plants, and the alpine zone above timberline.
Kilimanjaro has five common routes to its highest summit: Marangu Route; Machame Route; Rongai Route; Lemosho Route; and Mweka Route.
Climbing Kilimanjaro is easy and requires no technical climbing or mountaineering experience. The biggest challenge and danger is the high altitude. Climbers die from improper acclimatization and altitude sickness rather than falls.
Kilimanjaro is not a peak you can climb on your own. It is mandatory to climb with a licensed guide and have porters carry your equipment. This sustains the local economy and allows local people to reap the rewards of tourism.
The fastest verified ascent time was by Italian Bruno Brunod in 2001. He climbed Uhuru Peak from Marangu Gate in 5 hours, 38 minutes, and 40 seconds. The fastest round-trip time was by local guide Simon Mtuy who ran up and down on December 26, 2004 in 8 hours and 27 minutes.
Mount Meru, a 14,980-foot volcanic cone, lies 45 miles west of Kilimanjaro. It is an active volcano; has a snowcap; lies in Arusha National Park; and is often climbed as a training peak for Kilimanjaro.

Tortoise

Turtles have been on the earth for more than 200 million years. They evolved before mammals, birds, crocodiles, snakes, and even lizards.
The earliest turtles had teeth and could not retract their heads, but other than this, modern turtles are very similar to their original ancestors.
Turtles live on every continent except Antarctica.
Turtles will live in almost any climate warm enough to allow them to complete their breeding cycle.
While most turtles do not tolerate the cold well, the Blanding’s turtle has been observed swimming under the ice in the Great Lakes region.
Turtles range in size from the 4-inch Bog Turtle to the 1500-pound Leathery Turtle.
North America contains a large variety of turtle species, but Europe contains only two species of turtle and three species of tortoise.
The shell of a turtle is made up of 60 different bones all connected together.
Most land tortoises have high, domed carapaces that offer protection from the snapping jaws of terrestrial predators.
Most turtle species have five toes on each limb with a few exceptions including the American Box Turtle of the Carolina species that only has four toes and, in some cases, only three.
Turtles have good eyesight and an excellent sense of smell. Hearing and sense of touch are both good and even the shell contains nerve endings.
Some aquatic turtles can absorb oxygen through the skin on their neck and cloacal areas allowing them to remain submerged underwater for extended periods of time and enabling them to hibernate underwater.
Turtles are one of the oldest and most primitive groups of reptiles and have outlived many other species. One can only wonder if their unique shell is responsible for their longevity.