Monday, March 17, 2008

Thomas Edison (February 11, 1847 – October 18, 1931)

"Genius is one percent inspiration, ninety-nine percent perspiration." - Thomas Alva Edison, Harper's Monthly (September 1932)

Thomas Alva Edison (February 11, 1847October 18, 1931) was an American inventor and businessman who developed many devices that greatly influenced life around the world, including the phonograph and a long lasting light bulb. Dubbed "The Wizard of Menlo Park" by a newspaper reporter, he was one of the first inventors to apply the principles of mass production to the process of invention, and therefore is often credited with the creation of the first industrial research laboratory.

Edison is considered one of the most prolific inventors in history, holding 1,093 U.S. patents in his name, as well as many patents in the United Kingdom, France and Germany.


Early life

Edison's birthplace
Edison's birthplace

Thomas Edison was born in Milan, Ohio, and was raised in Port Huron, Michigan. He was the seventh and last child of Samuel Ogden Edison, Jr. (1804–1896) (born in Marshalltown, Nova Scotia, Canada) and Nancy Matthews Edison nee Elliott (1810–1871). His family was of Dutch origin.[1]

Thomas Edison as a boy.
Thomas Edison as a boy.

In school, the young Edison's mind often wandered, and his teacher, the Reverend Engle, was overheard calling him "addled." This ended Edison's three months of official schooling. He recalled later, "My mother was the making of me. She was so true, so sure of me; and I felt I had something to live for, someone I must not disappoint." His mother then home schooled him.[2] Much of his education came from reading R.G. Parker's School of Natural Philosophy and The Cooper Union.

Edison developed hearing problems at an early age. The cause of Edison's deafness has been attributed to a bout of scarlet fever during childhood and recurring untreated middle ear infections. Around the middle of his career Edison attributed the hearing loss to being struck on the ears by a train conductor when his chemical lab in a boxcar caught fire, and was thrown of the train in Smiths Creek, Michigan, along with his apparatus and chemicals. In his later years he modified the story to say the injury occurred when the conductor, in helping him onto a moving train, lifted him by the ears.[3][4]

Edison's family was forced to move to Port Huron, Michigan, when the railroad bypassed Milan in 1854,[5] but his life there was bittersweet(means it was as pleasant as unpleasant). He sold candy and newspapers on trains running from Port Huron to Detroit, as well as vegetables that he sold to supplement his income. This began Edison's long streak of entrepreneurial ventures as he discovered his talents as a businessman. These talents would eventually lead him to found General Electric, which is still a publicly traded company, and 13 other companies.

Edison became a telegraph operator after he saved three-year-old Jimmie MacKenzie from being struck by a runaway train. Jimmie's father, station agent J.U. MacKenzie of Mount Clemens, Michigan, was so grateful that he trained Edison as a telegraph operator. Edison's first telegraphy job away from Port Huron was at Stratford Junction, Ontario, on the Grand Trunk Railway.[6] In 1866, at the age of 19, Thomas Edison moved to Louisville, Kentucky, where as an employee of Western Union he worked the Associated Press bureau news wire. Edison requested the night shift at work which allowed him plenty of time to spend at his two favorite pastimes -- reading and experimenting. Eventually, the latter pre-occupation cost him his job. One night in 1867, he was working with a battery when he spilled sulphuric acid onto the floor. It ran between the floorboards and onto his boss' desk below. The next morning he was fired.[7]

One of his mentors during those early years was a fellow telegrapher and inventor named Franklin Leonard Pope, who allowed the impoverished youth to live and work in the basement of his Elizabeth, New Jersey, home.

Some of Edison's earliest inventions were related to telegraphy, including a stock ticker. His first patent was for the electric vote recorder, (U. S. Patent 90,646),[8] which was granted on June 1, 1869.[9]


Beginning his career

Photograph of Edison with his phonograph, taken by Mathew Brady in 1877.
Photograph of Edison with his phonograph, taken by Mathew Brady in 1877.

Thomas Edison began his career as an inventor in Newark, New Jersey, with the automatic repeater and his other improved telegraphic devices, but the invention which first gained him fame was the phonograph in 1877. This accomplishment was so unexpected by the public at large as to appear almost magical. Edison became known as "The Wizard of Menlo Park," New Jersey, where he lived. His first phonograph recorded on tinfoil around a grooved cylinder and had poor sound quality. The tinfoil recordings could only be replayed a few times. In the 1880s, a redesigned model using wax-coated cardboard cylinders was produced by Alexander Graham Bell, Chichester Bell, and Charles Tainter. This was one reason that Thomas Edison continued work on his own "Perfected Phonograph."




Edison's major innovation was the first industrial research lab, which was built in Menlo Park, New Jersey. It was the first institution set up with the specific purpose of producing constant technological innovation and improvement.

Nearly all of Edison's patents were utility patents, which were protected for a 17 year period and included inventions or processes that are electrical, mechanical, or chemical in nature. About a dozen were design patents, which protect an ornamental design for up to a 14 year period. Like most patents, the inventions he described were improvements over prior art. The phonograph patent, on the other hand, was unprecedented as the first device to record and reproduce sounds.[18] Edison did not invent the first electric light bulb, but instead invented the first commercially practical incandescent light. Several designs had already been developed by earlier inventors including the patent he purchased from Henry Woodward and Mathew Evans, Moses G. Farmer,[19] Joseph Swan, James Bowman Lindsay, William E. Sawyer, Sir Humphry Davy, and Heinrich Göbel. Some of these early bulbs had such flaws as extremely short life, high expense to produce, and high current draw, making them difficult to apply on a large scale commercially. In 1878, Edison applied the term filament to the element of glowing wire carrying the current, although English inventor Joseph Swan had used the term prior to this. Edison took the features of these earlier designs and set his workers to the task of creating longer-lasting bulbs. By 1879, he had produced a new concept: a high resistance lamp in a very high vacuum, which would burn for hundreds of hours. While the earlier inventors had produced electric lighting in laboratory conditions, dating back to a demonstration of a glowing wire by Alessandro Volta in 1800, Edison concentrated on commercial application, and was able to sell the concept to homes and businesses by mass-producing relatively long-lasting light bulbs and creating a complete system for the generation and distribution of electricity.

The Menlo Park research lab was made possible by the sale of the quadruplex telegraph that Edison invented in 1874, which could send four simultaneous telegraph signals over the same wire. When Edison asked Western Union to make an offer, he was shocked at the unexpectedly large amount that Western Union offered; the patent rights were sold for $10,000. The quadruplex telegraph was Edison's first big financial success.

In just over a decade Edison's Menlo Park laboratory had expanded to consume two city blocks. Edison said he wanted the lab to have "a stock of almost every conceivable material." A newspaper article printed in 1887 reveals the seriousness of his claim, stating the lab contained "eight thousand kinds of chemicals, every kind of screw made, every size of needle, every kind of cord or wire, hair of humans, horses, hogs, cows, rabbits, goats, minx, camels...silk in every texture, cocoons, various kinds of hoofs, shark's teeth, deer horns, tortoise shell...cork, resin, varnish and oil, ostrich feathers, a peacock's tail, jet, amber, rubber, all ores..." and the list goes on.[20]

Over his desk, Edison displayed a placard with Sir Joshua Reynolds' famous quote: "There is no expedient to which a man will not resort to avoid the real labor of thinking."[21] This slogan was reputedly posted at several other locations throughout the facility.

With Menlo Park, Edison had created the first industrial laboratory concerned with creating knowledge and then controlling its application.


Carbon telephone transmitter

In 1877-1878, Edison invented and developed the carbon microphone used in all telephones along with the Bell receiver until the 1980s. After protracted patent litigation, in 1892 a federal court ruled that Edison -- and not Emile Berliner -- was the inventor of the carbon microphone. (Josephson, p146). The carbon microphone was also used in radio broadcasting and public address work through the 1920s.

Electric light

After many experiments with platinum and other metal filaments, Edison returned to a carbon filament. The first successful test was on October 22, 1879;[22] and lasted 13.5 hours. Edison continued to improve this design and by November 4, 1879, filed for U.S. patent 223,898 (granted on January 27, 1880) for an electric lamp using "a carbon filament or strip coiled and connected ... to platina contact wires."[23] Although the patent described several ways of creating the carbon filament including "cotton and linen thread, wood splints, papers coiled in various ways,"[23] it was not until several months after the patent was granted that Edison and his team discovered a carbonized bamboo filament could last over 1200 hours.

Edison bought light bulb U.S. patent 181,613 of Henry Woodward that was issued August 29, 1876 and obtained an exclusive license to Woodward's Canadian patent. These patents covered a carbon filament in a rarefied gas bulb.

Edison in 1878
Edison in 1878

In 1878, Edison formed the Edison Electric Light Company in New York City with several financiers, including J. P. Morgan and the members of the Vanderbilt family. Edison made the first public demonstration of his incandescent light bulb on December 31, 1879, in Menlo Park. It was during this time that he said, "We will make electricity so cheap that only the rich will burn candles."[24]

On October 8, 1883, the U.S. patent office ruled that Edison's patent was based on the work of William Sawyer and was therefore invalid. Litigation continued for nearly six years, until October 6, 1889, when a judge ruled that Edison's electric light improvement claim for "a filament of carbon of high resistance" was valid. To avoid a possible court battle with Joseph Swan, whose British patent had been awarded a year before Edison's, he and Swan formed a joint company called Ediswan to manufacture and market the invention in Britain.

The Mahen Theatre in Brno in what is now the Czech Republic, was the first public building in the world to use Edison's electric lamps, with the installation supervised by Edison's assistant in the invention of the lamp, Francis Jehl. [26]


Fluoroscopy

Edison is credited with designing and producing the first commercially available fluoroscope, the machine that takes radiographs (colloquially known as "X-rays"). Until Edison discovered that calcium tungstate fluoroscopy screens produced brighter images than the barium platinocyanide screens originally used by Wilhelm Röntgen, the technology was only capable of producing very faint images. The fundamental design of Edison's fluoroscope is still in use today, despite the fact that Edison himself abandoned the project after nearly losing his own eyesight and seriously maiming his assistant, Clarence Dally. Dally had made himself an enthusiastic human guinea pig for the fluoroscopy project and in the process been exposed to a poisonous dose of radiation. He later died of injuries related to the exposure. In 1903, a shaken Edison said "Don't talk to me about X-rays, I am afraid of them."[33]


Media inventions

The key to Edison's fortunes was telegraphy. With knowledge gained from years of working as a telegraph operator, he learned the basics of electricity. This allowed him to make his early fortune with the stock ticker, the first electricity-based broadcast system. Edison patented the sound recording and reproducing phonograph (or gramophone in British English) in 1878. Edison was also granted a patent for the motion picture camera or "Kinetograph". He did the electromechanical design, while his employee W.K.L. Dickson, a photographer, worked on the photographic and optical development. Much of the credit for the invention belongs to Dickson.[22] In 1891, Thomas Edison built a Kinetoscope, or peep-hole viewer. This device was installed in penny arcades, where people could watch short, simple films. The kinetograph and kinetoscope were both first publicly exhibited May 20, 1891.[39]

On August 9, 1892, Edison received a patent for a two-way telegraph. In April 1896, Thomas Armat's Vitascope, manufactured by the Edison factory and marketed in Edison's name, was used to project motion pictures in public screenings in New York City. Later he exhibited motion pictures with voice soundtrack on cylinder recordings, mechanically synchronized with the film.

Officially the kinetoscope entered in Europe when the rich American Businessman Irving T. Bush (1869-1948) bought from the Continental Commerce Company of Franck Z. Maguire and Joseph D. Bachus a dozen machines. Bush placed from October 17, 1894 on the first kinetoscopes in London. At the same time the French company Kinétoscope Edison Michel et Alexis Werner bought these machines for the market in France. In the last three months of 1894 The Continental Commerce Company sold hundreds of kinetoscopes in Europe (i.e. the Netherlands and Italy). In Germany and in Austria-Hungary the kinetoscope was introduced by the Deutsche-österreichische-Edison-Kinetoscop Gesellschaft, founded by the Ludwig Stollwerck [40] of the Schokoladen-Süsswarenfabrik Stollwerck & Co of Cologne. The first kinetoscopes arrived in Belgium at the Fairs in early 1895. The Edison's Kinétoscope Français, a Belgian company, was founded in Brussels on January 15, 1895 with the rights to sell the kinetoscopes in Monaco, France and the French colonies. The main investors in this company were Belgian industrialists. On May 14, 1895 the Edison's Kinétoscope Belge was founded in Brussels. The businessman Ladislas-Victor Lewitzki, living in London but active in Belgium and France, took the initiative in starting this business. He had contacts with Leon Gaumont and the American Mutoscope and Biograph Co. In 1898 he also became shareholder of the Biograph and Mutoscope Company for France.[41]

In 1908, Edison started the Motion Picture Patents Company, which was a conglomerate of nine major film studios (commonly known as the Edison Trust). Thomas Edison was the first honorary fellow of the Acoustical Society of America, which was founded in 1929.

Views on politics, religion and metaphysics

Historian Paul Israel has characterized Edison as a "freethinker."[22] Edison was heavily influenced by Thomas Paine's Age of Reason.[22] Edison defended Paine's "scientific deism," saying, "He has been called an atheist, but atheist he was not. Paine believed in a supreme intelligence, as representing the idea which other men often express by the name of deity."[22] In an October 2, 1910 interview in the New York Times Magazine, Edison stated:

Nature is what we know. We do not know the gods of religions. And nature is not kind, or merciful, or loving. If God made me -- the fabled God of the three qualities of which I spoke: mercy, kindness, love -- He also made the fish I catch and eat. And where do His mercy, kindness, and love for that fish come in? No; nature made us -- nature did it all -- not the gods of the religions.[51]

Edison was accused of atheism for these remarks, and although he did not allow himself to be drawn into the controversy publicly, he defended himself in a private letter. "You have misunderstood the whole article, because you jumped to the conclusion that it denies the existence of God. There is no such denial, what you call God I call Nature, the Supreme intelligence that rules matter. All the article states is that it is doubtful in my opinion if our intelligence or soul or whatever one may call it lives hereafter as an entity or disperses back again from whence it came, scattered amongst the cells of which we are made."[22]




Thursday, March 13, 2008

Albert Einstein(14 March 1879 - 18 April 1955)

Youth and schooling

Albert Einstein was born into a Jewish family in Ulm, Württemberg, Germany on March 14, 1879. His father was Hermann Einstein, a salesman and engineer. His mother was Pauline Einstein (née Koch). In 1880, the family moved to Munich, where his father and his uncle founded a company, Elektrotechnische Fabrik J. Einstein & Cie that manufactured electrical equipment, providing the first lighting for the Oktoberfest and cabling for the Munich suburb of Schwabing.

The Einsteins were not observant of Jewish religious practices, and Albert attended a Catholic elementary school. Although Einstein had early speech difficulties, he was a top student in elementary school.[5][6]

Albert Einstein in 1893 (age 14), taken before the family moved to Italy
Albert Einstein in 1893 (age 14), taken before the family moved to Italy

When Einstein was five, his father showed him a pocket compass. Einstein realized that something in empty space was moving the needle and later stated that this experience made "a deep and lasting impression".[7] At his mother's insistence, he took violin lessons starting at age six, and although he disliked them and eventually quit, he later took great pleasure in Mozart's violin sonatas. As he grew, Einstein built models and mechanical devices for fun, and began to show a talent for mathematics.

In 1889, family friend Max Talmud (later: Talmey), a medical student,[8] introduced the ten-year-old Einstein to key science, mathematics, and philosophy texts, including Kant's Critique of Pure Reason and Euclid's Elements (Einstein called it the "holy little geometry book").[8] From Euclid, Einstein began to understand deductive reasoning (integral to theoretical physics), and by the age of twelve, he learned Euclidean geometry from a school booklet. Soon thereafter he began to investigate calculus.

In his early teens, Einstein attended the new and progressive Luitpold Gymnasium. His father intended for him to pursue electrical engineering, but Einstein clashed with authorities and resented the school regimen. He later wrote that the spirit of learning and creative thought were lost in strict rote learning.

In 1894, when Einstein was fifteen, his father's business failed, and the Einstein family moved to Italy, first to Milan and then, after a few months, to Pavia. During this time, Einstein wrote his first scientific work, "The Investigation of the State of Aether in Magnetic Fields".[9] Einstein had been left behind in Munich to finish high school, but in the spring of 1895, he withdrew to join his family in Pavia, convincing the school to let him go by using a doctor's note.

Rather than completing high school, Einstein decided to apply directly to the ETH Zurich, the Swiss Federal Institute of Technology in Zurich, Switzerland. Without a school certificate, he was required to take an entrance examination, which he did not pass, although he got exceptional marks in mathematics and physics.[10] Einstein wrote that it was in that same year, at age 16, that he first performed his famous thought experiment, visualizing traveling alongside a beam of light (Einstein 1979).

The Einsteins sent Albert to Aarau, Switzerland to finish secondary school. While lodging with the family of Professor Jost Winteler, he fell in love with the family's daughter, Sofia Marie-Jeanne Amanda Winteler, called "Marie". (Albert's sister, Maja, his confidant, later married Paul Winteler.)[11][12] In Aarau, Einstein studied Maxwell's electromagnetic theory. In 1896, he graduated at age 17, renounced his German citizenship to avoid military service (with his father's approval), and finally enrolled in the mathematics program at ETH. Marie moved to Olsberg, Switzerland for a teaching post.

In 1896, Einstein's future wife, Mileva Marić, also enrolled at ETH, as the only woman studying mathematics. During the next few years, Einstein and Marić's friendship developed into romance. Einstein graduated in 1900 from ETH with a degree in physics.[13] That same year, Einstein's friend Michele Besso introduced him to the work of Ernst Mach. The next year, Einstein published a paper in the prestigious Annalen der Physik on the capillary forces of a straw (Einstein 1901). On February 21, 1901, he gained Swiss citizenship, which he never revoked.[14]



Religious views

The question of scientific determinism gave rise to questions about Einstein's position on theological determinism, and even whether or not he believed in God. In 1929, Einstein told Rabbi Herbert S. Goldstein "I believe in Spinoza's God, who reveals Himself in the lawful harmony of the world, not in a God Who concerns Himself with the fate and the doings of mankind."[52] In a 1950 letter to M. Berkowitz, Einstein stated that "My position concerning God is that of an agnostic. I am convinced that a vivid consciousness of the primary importance of moral principles for the betterment and ennoblement of life does not need the idea of a law-giver, especially a law-giver who works on the basis of reward and punishment."[53] However, Einstein made clear that he did not espouse atheism: "In view of such harmony in the cosmos which I, with my limited human mind, am able to recognize, there are yet people who say there is no God. But what really makes me angry is that they quote me for the support of such views."[54] Einstein clarified his religious views in a letter he wrote in response to those who claimed that he worshipped a Judeo-Christian god: "It was, of course, a lie what you read about my religious convictions, a lie which is being systematically repeated. I do not believe in a personal God and I have never denied this but have expressed it clearly. If something is in me which can be called religious then it is the unbounded admiration for the structure of the world so far as our science can reveal it."[54][55] In his book The World as I See It, he wrote: "A knowledge of the existence of something we cannot penetrate, of the manifestations of the profoundest reason and the most radiant beauty, which are only accessible to our reason in their most elementary forms—it is this knowledge and this emotion that constitute the truly religious attitude; in this sense, and in this alone, I am a deeply religious man."[56]

Einstein published a paper in Nature in 1940 entitled "Science and Religion" which gave his views on the subject.[57] He says that: "a person who is religiously enlightened appears to me to be one who has, to the best of his ability, liberated himself from the fetters of his selfish desires and is preoccupied with thoughts, feelings and aspirations to which he clings because of their super-personal value … regardless of whether any attempt is made to unite this content with a Divine Being, for otherwise it would not be possible to count Buddha and Spinoza as religious personalities. Accordingly a religious person is devout in the sense that he has no doubt of the significance of those super-personal objects and goals which neither require nor are capable of rational foundation … In this sense religion is the age-old endeavour of mankind to become clearly and completely conscious of these values and goals, and constantly to strengthen their effects." He argued that conflicts between science and religion "have all sprung from fatal errors." "[E]ven though the realms of religion and science in themselves are clearly marked off from each other" there are "strong reciprocal relationships and dependencies … science without religion is lame, religion without science is blind … a legitimate conflict between science and religion cannot exist." In Einstein's view, "neither the rule of human nor Divine Will exists as an independent cause of natural events. To be sure, the doctrine of a personal God interfering with natural events could never be refuted … by science, for [it] can always take refuge in those domains in which scientific knowledge has not yet been able to set foot." (Einstein 1940, pp. 605–607)


(wiki)

Wednesday, March 12, 2008

George Washington (1732-1799)

George Washington (1732-1799) was the
first President of the United States of America. He served as President
from April 30, 1789, until March 4, 1797 (two terms).



Born in 1732 into a Virginia planter family, he learned the morals, manners, and body of knowledge requisite for an 18th century Virginia gentleman.

He pursued two intertwined interests: military arts and western expansion. At 16 he helped survey Shenandoah lands for Thomas, Lord Fairfax. Commissioned a lieutenant colonel in 1754, he fought the first skirmishes of what grew into the French and Indian War. The next year, as an aide to Gen. Edward Braddock, he escaped injury although four bullets ripped his coat and two horses were shot from under him.


From 1759 to the outbreak of the American Revolution, Washington managed his lands around Mount Vernon and served in the Virginia House of Burgesses. Married to a widow, Martha Dandridge Custis, he devoted himself to a busy and happy life. But like his fellow planters, Washington felt himself exploited by British merchants and hampered by British regulations. As the quarrel with the mother country grew acute, he moderately but firmly voiced his resistance to the restrictions.

When the Second Continental Congress assembled in Philadelphia in May 1775, Washington, one of the Virginia delegates, was elected Commander in Chief of the Continental Army. On July 3, 1775, at Cambridge, Massachusetts, he took command of his ill-trained troops and embarked upon a war that was to last six grueling years.

He realized early that the best strategy was to harass the British. He reported to Congress, "we should on all Occasions avoid a general Action, or put anything to the Risque, unless compelled by a necessity, into which we ought never to be drawn." Ensuing battles saw him fall back slowly, then strike unexpectedly. Finally in 1781 with the aid of French allies--he forced the surrender of Cornwallis at Yorktown.

Washington longed to retire to his fields at Mount Vernon. But he soon realized that the Nation under its Articles of Confederation was not functioning well, so he became a prime mover in the steps leading to the Constitutional Convention at Philadelphia in 1787. When the new Constitution was ratified, the Electoral College unanimously elected Washington President


Revolutionary War:

In order to pay for the expensive French and Indian War, the British
taxed the Colonists (the Stamp Tax), angering them. In Boston, the
Colonists revolted, dumping precious tea into Boston Harbor (this event
is called the Boston Tea Party).


In 1775, Washington was chosen as the
Commander in Chief of the Colonial Army. In 1776, the Colonists
declared their independence from the British. General Washington led
ragtag Patriot troops who were poorly trained, barely paid, badly
equipped, and outnumbered by the British. Patriot women, like Molly
"Pitcher," often helped on the battlefields, carrying pitchers of water
to cool down the cannons so they could be re-fired, and also nursing
the wounded.


Due to the brilliant planning of George
Washington and some help from the French late in the War, the British
were defeated in 1781 after many bloody battles. The Americans were now
independent of the British.


Washington enjoyed less than three years of retirement at Mount Vernon, for he died of a throat infection December 14, 1799. For months the Nation mourned him.


One eminent person a day.

Learning about eminent people who have walked the earth provides me with a unique sense of insight. What I learn from them is so invaluable that nothing else on earth can replace.

I believe the mind is a machine to think and the body is a machine to hold the mind while it lives. The mind:You put thoughts in it and it processes to give ideas. This is why learning something that you dont understand is completely useless=because you cant use it. The question is.. what do you put into it?

If you learn mathematics, science, engineering, language etc etc, if you think like me, you will soon realise that we are all wasting our time if those things we learn we cant use it.

Mathematics, like engineering are just tools. The art of using them only comes from inspiration and imagination. By learning how those great people thought, we can learn amazing ways that inspire us to think instead of just knowing.

When I was 15 years I read .. I have forgotten who said that..but when he felt empty, he simply went into his library and took a book about eminent people. He quickly found great inspiration to work. I always yearned for such a book when I was younger but found none. Even if I found any I highly doubt if I would have had the means to buy it.

I have also put the life time of the people to show that everyone will die... that anything we can ever achieve is just within this time span after this we die. When we know this we quickly understand why we cannot waste time...