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Monday, March 28, 2011

Discovery of the Microscope.

Birth of the Light Microscope

About 1590, two Dutch spectacle makers, Zaccharias Janssen and his son Hans, while experimenting with several lenses in a tube, discovered that nearby objects appeared greatly enlarged. That was the forerunner of the compound microscope and of the telescope. In 1609, Galileo, father of modern physics and astronomy, heard of these early experiments, worked out the principles of lenses, and made a much better instrument with a focusing device.
Anton van Leeuwenhoek (1632-1723)
The father of microscopy, Anton van Leeuwenhoek of Holland, started as an apprentice in a dry goods store where magnifying glasses were used to count the threads in cloth. He taught himself new methods for grinding and polishing tiny lenses of great curvature which gave magnifications up to 270 diameters, the finest known at that time. These led to the building of his microscopes and the biological discoveries for which he is famous. He was the first to see and describe bacteria, yeast plants, the teeming life in a drop of water, and the circulation of blood corpuscles in capillaries. During a long life he used his lenses to make pioneer studies on an extraordinary variety of things, both living and non living, and reported his findings in over a hundred letters to the Royal Society of England and the French Academy.

Robert Hooke
Robert Hooke, the English father of microscopy, re-confirmed Anton van Leeuwenhoek's discoveries of the existence of tiny living organisms in a drop of water. Hooke made a copy of Leeuwenhoek's light microscope and then improved upon his design.
R.Hooke also gave the name CELL to a basic unit of all living organisms, after seeing empty spaces is a slice of cork

Charles A. Spencer
Later, few major improvements were made until the middle of the 19th century. Then several European countries began to manufacture fine optical equipment but none finer than the marvelous instruments built by the American, Charles A. Spencer, and the industry he founded. Present day instruments, changed but little, give magnifications up to 1250 diameters with ordinary light and up to 5000 with blue light.

Sunday, March 27, 2011

April Fools Day

Unlike most of the other nonfoolish holidays, the history of April Fool's Day, sometimes called All Fool's Day, is not totally clear. It is not like Halloween, where despite an interesting history, most people just put on Halloween costumes, get candy, and leave it at that. There really wasn't a "first April Fool's Day" that can be pinpointed on the calendar. Some believe it sort of evolved simultaneously in several cultures at the same time, from celebrations involving the first day of spring.
The closest point in time that can be identified as the beginning of this tradition was in 1582, in France. Prior to that year, the new year was celebrated for eight days, beginning on March 25. The celebration culminated on April 1. With the reform of the calendar under Charles IX, the Gregorian Calendar was introduced, and New Year's Day was moved to January 1.
 However, communications being what they were in the days when news traveled by foot, many people did not receive the news for several years. Others, the more obstinate crowd, refused to accept the new calendar and continued to celebrate the new year on April 1. These backward folk were labeled as "fools" by the general populace. They were subject to some ridicule, and were often sent on "fools errands" or were made the butt of other practical jokes.
This harassment evolved, over time, into a tradition of prank-playing on the first day of April. The tradition eventually spread to England and Scotland in the eighteenth century. It was later introduced to the American colonies of both the English and French. April Fool's Day thus developed into an international fun fest, so to speak, with different nationalities specializing in their own brand of humor at the expense of their friends and families.
In Scotland, for example, April Fool's Day is actually celebrated for two days. The second day is devoted to pranks involving the posterior region of the body. It is called Taily Day. The origin of the "kick me" sign can be traced to this observance.
Mexico's counterpart of April Fool's Day is actually observed on December 28. Originally, the day was a sad remembrance of the slaughter of the innocent children by King Herod. It eventually evolved into a lighter commemoration involving pranks and trickery.
Pranks performed on April Fool's Day range from the simple, (such as saying, "Your shoe's untied, or I accidentally stepped on your glasses!), to the elaborate. Setting a roommate's alarm clock back an hour is a common gag. Whatever the prank, the trickster usually ends it by yelling to his victim, "April Fool!"
Practical jokes are a common practice on April Fool's Day. Sometimes, elaborate practical jokes are played on friends or relatives that last the entire day. The news media even gets involved. For instance, a British short film once shown on April Fool's Day was a fairly detailed documentary about "spaghetti farmers" and how they harvest their crop from the spaghetti trees.
April Fool's Day is a "for-fun-only" observance. Nobody is expected to buy gifts or to take their "significant other" out to eat in a fancy restaurant. Nobody gets off work or school. It's simply a fun little holiday, but a holiday on which one must remain forever vigilant, for he may be the next April Fool!











Friday, March 25, 2011

Did you know? I did not.

Did you know?
If you are right handed, you will tend to chew your food on the right side of your mouth. If you are left handed, you will tend to chew your food on the left side of your mouth.

To make half a kilo of honey, bees must collect nectar from over 2 million individual flowers

Heroin is the brand name of morphine once marketed by 'Bayer'.

Communications giant Nokia was founded in 1865 as a wood-pulp mill by Fredrik Idestam.

Tourists visiting Iceland should know that tipping at a restaurant is considered an insult!

People in nudist colonies play volleyball more than any other sport.

Albert Einstein was offered the presidency of Israel in 1952, but he declined.

Astronauts can't belch - there is no gravity to separate liquid from gas in their stomachs.

Ancient Roman, Chinese and German societies often used urine as mouthwash.

The average person who stops smoking requires one hour less sleep a night.

The Mona Lisa has no eyebrows. In the Renaissance era, it was fashion to shave them off!

Because of the speed at which Earth moves around the Sun, it is impossible for a solar eclipse to last more than 7 minutes and 58 seconds.

The night of January 20 is "Saint Agnes's Eve", which is regarded as a time when a young woman dreams of her future husband.

There are over 25 million bubbles waiting to burst out of each bottle of Champagne

Google is actually the common name for a number with a million zeros

It takes glass one million years to decompose, which means it never wears out and can be recycled an infinite amount of times!

The heat of peppers is rated on the Scoville scale

Gold is the only metal that doesn't rust, even if it's buried in the ground for thousands of years

Your tongue is the only muscle in your body that is attached at only one end

If you stop getting thirsty, you need to drink more water. When a human body is dehydrated, its thirst  mechanism shuts off.

Each year 2,000,000 smokers either quit smoking or die of tobacco-related diseases.

When it originally appeared in 1886 - Coca Cola was billed as an Esteemed Brain Tonic and Intellectual Beverage.

Zero is the only number that cannot be represented by Roman numerals

Kites were used in the American Civil War to deliver letters and newspapers.

The song, Auld Lang Syne, is sung at the stroke of midnight in almost every English-speaking country in the world to bring in the new year.

For every real Christmas tree harvested, two to three seedlings are planted in its place.

Drinking water after eating reduces the acid in your mouth by 61 percent

Peanut oil is used for cooking in submarines because it doesn't smoke unless it's heated above 450°F

The Shell Oil Company originally began as a novelty shop in London that sold seashells

The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.

Nine out of every 10 living things live in the ocean

The banana cannot reproduce itself. It can be propagated only by the hand of man

Airports at higher altitudes require a longer airstrip due to lower air density

Fish and Chip selling officially remained an offensive trade until 1940 due to the smell it produces

The University of Alaska spans four time zones

The tooth is the only part of the human body that cannot heal itself.

In ancient Greece , tossing an apple to a girl was a traditional proposal of marriage. Catching it meant she accepted.

Do you know the names of the three wise monkeys? They are: Mizaru(See no evil), Mikazaru(Hear no evil) , and Mazaru(Speak no evil).

Warner Communications paid $28 million for the copyright to the song Happy Birthday.

Intelligent people have more zinc and copper in their hair.

A comet's tail always points away from the sun

The Swine Flu vaccine in 1976 caused more death and illness than the disease it was intended to prevent

Caffeine increases the power of aspirin and other pain killer’s, that is why it is found in some medicines.

The military salute is a motion that evolved from medieval times, when knights in armor raised their visors to reveal their identity.

If you get into the bottom of a well or a tall chimney and look up, you can see stars, even in the middle of the day.

When a person dies, hearing is the last sense to go. The first sense lost is sight.

Trivia in Roman mythology was the goddess who haunted crossroads, graveyards and was the goddess of sorcery and witchcraft. She wandered about at night, and was seen only by the barking of dogs who told of her approach.

In ancient times strangers shook hands to show that they were unarmed

Strawberries are the only fruits whose seeds grow on the outside

Avocados have the highest calories of any fruit at 167 calories per hundred grams

The moon moves about two inches away from the Earth each year

The Earth gets 100 tons heavier every day due to falling space dust

Due to earth's gravity it is impossible for mountains to be higher than 15,000 meters

Men's shirts have the buttons on the right, but women's shirts have the buttons on the left





Thursday, March 24, 2011

Robert Koch..Father of bacteriology.Discovered the TB bacillus

ROBERT KOCH
Born Dec. 11, 1843, Clausthal, Hannover — died May 27, 1910, Baden-Baden, Ger.) German physician. As the first to isolate the anthrax bacillus, observe its life cycle, and develop a preventive inoculation for it, he was the first to prove a causal relationship between a bacillus and a disease. He perfected pure-culture techniques, based on Louis Pasteur's concept. He isolated the tuberculosis organism and established its role in the disease (1882). In 1883 he discovered the causal organism for cholera and how it is transmitted and also developed a vaccination for rinderpest. Koch's postulates remain fundamental to pathology: the organism should always be found in sick animals and never in healthy ones; it must be grown in pure culture; the cultured organism must make a healthy animal sick; and it must be reisolated from the newly sick animal and recultured and still be the same. Awarded a Nobel Prize in 1905, he is considered a founder of bacteriology.





Wednesday, March 23, 2011

Amazon

Amazon

This 1.7 billion-acre jungle makes up more than half of the rainforests remaining on the planet. The Amazon is situated in nine countries: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela.

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Weird Trivial Facts

In July 1981, a tortoise was sentenced to death for murder. Tribal leaders in an eastern Kenyan village formally condemned the tortoise because they suspected it of causing the deaths of six people by magic. However, because none of the villagers was prepared to face the tortoise's wrath by carrying out the execution, it was chained to a tree instead. The tortoise was later freed after the government promised an inquiry into the six deaths.

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After the death of her husband, poet Percy Shelley, Mary Shelley (author of Frankenstein) kept his heart wrapped up in silk until she died.



Tuesday, March 22, 2011

A record for the longest spaceflight.

The wisdom of Birbal

The wisdom of Birbal was unparalleled during the reign of Mughal Emperor
Akbar in India.
But Akbar's brother in law was extremely jealous of him. He asked the Emperor
Akbar to dispense with Birbal's services and appoint him in his place. He gave ample assurance that he would prove to be more efficient and capable than Birbal.
Before Emperor Akbar could take a decision on this matter, this news reached Birbal. Birbal resigned and left. Emperor Akbar's brother in law was made the minister in place of Birbal.
Emperor Akbar decided to test the new minister. He gave three hundred gold coins to him and said, "Spend these gold coins such that, I get a hundred gold coins here in this life; a hundred gold coins in the other world and another hundred gold coins neither here nor there."
The minister found the entire situation to be a maze of confusion and hopelessness.He spent sleepless nights worrying over how he would get himself out of this mess. Thinking in circles was making him go crazy. Eventually, on the advice of his wife he sought Birbal's help. Birbal said, "Just give me the gold coins. I shall handle the rest."
Birbal walked the streets of the city holding the bag of gold coins in his hand.
He noticed a rich merchant celebrating his son's wedding. Birbal gave a hundred gold coins to him and bowed courteously saying, "The Emperor Akbar sends you his good wishes and blessings for the wedding of your son. Please accept the gift he has sent."
The merchant felt honored that the Emperor had sent a special messenger with such a precious gift. He honored Birbal and gave him a large number of expensive gifts and a bag of gold coins as a return gift for the Emperor.
Next, Birbal went to the area of the city were the poor people lived. There he bought food and clothing in exchange for a hundred gold coins and distributed them in the name of the Emperor Akbar.
When he came back to town he organized a concert of music and dance. He spent a hundred gold coins on it.The next day Birbal entered Emperor Akbar's court and announced that he had done all that the Emperor had asked his brother-in-law to do. The Emperor Akbar waited to know how he had done it.
Birbal repeated the sequences of all the events and then said, "The money I gave to the merchant for the wedding of his son - you have got back while you are on this earth. The money I spent on buying food and clothing for the poor - you will get it in the other world. The money I spent on the musical concert - you will get neither here nor there."
Moral:
This is true even today. The money you spend on friends is returned or reciprocated in some form or the other.Money spent on charity gets converted into blessings from The Almighty which becomes your eternal property.Money spent on pleasures is just frittered away and in return you will be held responsible for wasting in the hereafter!











Monday, March 21, 2011

Significance of Holi

Significance of Holi

In spite of being such a colourful and gay festival, there are various aspects of Holi which makes it so significant for our lives. Though they might not be so apparent but a closer look and a little thought will reveal the significance of Holi in more ways than meets the eyes. Ranging from socio-cultural, religious to biological there is every reason why we must heartily enjoy the festival and cherish the reasons for its celebrations.


So when, its time for Holi, please don't hold yourself back and enjoy the festival to the hilt by participating with full enthusiasm in every small tradition related to the festival.

Mythological Significance


Holi gets us close to our religion and our mythology as it is essentially the celebration of various legends associated with the festival.


Foremost is the legend of Prahlad and Hiranyakshyap. The legend says there once lived a devil and powerful king, Hiranyakshyap who considered himself a god and wanted everybody to worship him. To his great ire, his son, Prahlad began to worship, Lord Vishnu. To get rid of his son, Hiranyakshyap asked his sister, Holika to enter a blazing fire with Prahlad in her lap, as she had a boon to enter fire unscathed. Legend has it that Prahlad was saved for his extreme devotion for the lord while Holika paid a price for her sinister desire. The tradition of burning Holika or the 'Holika dahan' comes mainly from this legend.

Holi also celebrates the legend of Radha and Krishna which describes the extreme delight, Krishna took in applying colour on Radha and other gopis. This prank of Krishna later, became a trend and a part of the Holi festivities.


Mythology also states that Holi is the celebration of death of Ogress Pootana who tried to kill infant, Krishna by feeding poisonous milk to it.


Another legend of Holi which is extremely popular in Southern India is that of Lord Shiva and Kaamadeva. According to the legend, people in south celebrate the sacrifice of Lord of Passion Kaamadeva who risked his life to revoke Lord Shiva from meditation and save the world.






Also, popular is the legend of Ogress Dhundhi who used to trouble children in the kingdom of Raghu and was ultimately chased away by the pranks of the children on the day of Holi. Showing their belief in the legend, children till date play pranks and hurl abuses at the time of Holika Dahan.





Sunday, March 20, 2011

Sportsmanship

Sportsmanship expresses an aspiration or ethos that the activity will be enjoyed for its own sake, with proper consideration for fairness, ethics, respect, and a sense of fellowship with one's competitors. Being a "good sport" involves being a "good winner" as well as being a "good loser".

Sportsmanship typically is regarded as a component of morality in sport, composed of three related and perhaps overlapping concepts: fair play, sportsmanship and character. Fair play refers to all participants having an equitable chance to pursue victory and acting toward others in an honest, straightforward, and a firm and dignified manner even when others do not play fairly. It includes respect for others including team members, opponents, and officials. Character refers to dispositions, values and habits that determine the way that person normally responds to desires, fears, challenges, opportunities, failures and successes and is typically seen in polite behaviors toward others such as helping an opponent up or shaking hands after a match. An individual is believed to have a “good character” when those dispositions and habits reflect core ethical values. An example of poor sportsmanship is exemplified in a team's calling timeouts to run up the score on an opponent when the former team already has a sizeable lead.

Sportsmanship can be conceptualized as an enduring and relatively stable characteristic or disposition such that individuals differ in the way they are generally expected to behave in sport situations. In general, sportsmanship refers to virtues such as fairness, self-control, courage and persistence and has been associated with interpersonal concepts of treating others and being treated fairly, maintaining self-control in dealing with others, and respect for both authority and opponents.

A competitor who exhibits poor sportsmanship after losing a game or contest is often called a "sore loser" (those who show poor sportsmanship after winning are typically called "bad winners"). Behavior includes blaming others, not taking responsibility for personal actions, reacting immaturely or improperly, making excuses for their loss, referring to unfavorable conditions or other petty issues. A bad winner is when the victor of a game acts in a shallow fashion such as gloating about their win or rubbing it in the face of the one who lost.