Kamis, 05 Februari 2009

Gautama Budha

Buddha is perhaps one of the few sages for whom we have mention of his rather impressive physical characteristics. A kshatriya by birth, he had military training in his upbringing, and by Shakyan tradition was required to pass tests to demonstrate his worthiness as a warrior in order to marry. He had a strong enough body to be noticed by one of the kings and was asked to join his army as a general. He is also believed by Buddhists to have "the 32 Signs of the Great Man".

The Brahmin Sonadanda described him as "handsome, good-looking, and pleasing to the eye, with a most beautiful complexion. He has a godlike form and countenance, he is by no means unattractive."(D,I:115).

"It is wonderful, truly marvellous, how serene is the good Gotama's appearance, how clear and radiant his complexion, just as the golden jujube in autumn is clear and radiant, just as a palm-tree fruit just loosened from the stalk is clear and radiant, just as an adornment of red gold wrought in a crucible by a skilled goldsmith, deftly beaten and laid on a yellow-cloth shines, blazes and glitters, even so, the good Gotama's senses are calmed, his complexion is clear and radiant." (A,I:181)

A disciple named Vakkali, who later became an Arahant, was so obsessed by Buddha's physical presence that Buddha had to tell him to stop and reminded Vakkali to know Buddha through the Dhamma and not physical appearances.

Although the Buddha was not represented in human form until around the 1st century CE (see Buddhist art), the physical characteristics of fully-enlightened Buddhas are described by the Buddha in the Digha Nikaya's Lakkhaṇa Sutta (D,I:142).[25] In addition, the Buddha's physical appearance is described by Yasodhara to their son Rahula upon the Buddha's first post-Enlightenment return to his former princely palace in the non-canonical Pali devotional hymn, Narasīha Gāthā ("The Lion of Men").[26]

Many Westerners associate the name "Buddha" with figurine depictions of a certain fat, bald, smiling person. This is inaccurate, as the person in these figurines is not Buddha at all, but Budai, a Chinese Buddhist monk who lived in the 10th century CE.

Teachings

Minggu, 01 Februari 2009

Thomas Alfa Edison

Thomas Edison was born in Milan, Ohio, and grew up in Port Huron, Michigan. He was the seventh and last child of Samuel "The Iron Shovel" Edison, Jr. (1804–1896) (born in Marshalltown, Nova Scotia, Canada) and Nancy Matthews Elliott (1810–1871). He considered himself to be of Dutch ancestry.[1] 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. Edison 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 homeschooled 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 his 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 impairment to being struck on the ears by a train conductor when his chemical laboratory in a boxcar caught fire and he was thrown off 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. He sold candy and newspapers on trains running from Port Huron to Detroit, and he sold vegetables to supplement his income. This began Edison's long streak of entrepreneurial ventures as he discovered his talents as a businessman. These talents eventually led him to found 14 companies, including General Electric, which is still in existence and is one of the largest publicly traded companies in the world.[6]

Telegrapher

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.[7] 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, 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 lead-acid battery when he spilled sulfuric acid onto the floor. It ran between the floorboards and onto his boss's desk below. The next morning Edison was fired.[8]

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),[9] which was granted on June 1, 1869.[10]

Marriages and children

Mina Edison in

Jumat, 30 Januari 2009

Multatuli

Dekker was born in Amsterdam. His father, a ship's captain, intended his son for trade, but this humdrum prospect disgusted him, and in 1838 he went out to Java and obtained a post as a civil servant. He moved from one posting to another, until, in 1851, he became assistant-resident at Ambon, in the Moluccas. In 1857 he was transferred to Lebak, in the Bantam residency of Java (now Banten province). By this time, however, all the secrets of Dutch administration were known to him, and he had begun to openly protest about the abuses of the colonial system. Consequently he was threatened with dismissal from his office for his openness of speech. Dekker resigned his appointment and returned to the Netherlands in a state of fierce indignation.

Statue of Multatuli on a square over the Singel canal in Amsterdam.

He was determined to expose in detail the scandals he had witnessed, and he began to do so in newspaper articles and pamphlets. Little notice, however, was taken of his protestations until, in 1860, he published his novel Max Havelaar under the pseudonym of Multatuli. Dekker's new pseudonym, which is derived from Latin, means, "I have suffered much", or, more literally "I have borne much" referring to himself, as well as, it is thought, to the victims of the injustices he saw. An attempt was made to ignore this irregular (for the 1860s) book, but in vain; it was read all over Europe. The exposure of the abuse of free labour in the Dutch Indies was thorough, although colonialist apologists accused Dekker's terrible picture of being overdrawn. Multatuli now began his literary career, and published Love Letters (1861), which, in spite of their mild title, were mordant, unsparing satires.

Although the literary merit of Multatuli's work was widely criticised, he received an unexpected and most valuable ally in Carel Vosmaer who published a book (The Sower 1874) praising him[1]. He continued to write much, and to publish his miscellanies in uniform volumes called Ideas, of which seven appeared between 1862 and 1877 and also contain his novel Woutertje Pieterse.

Dekker left Holland, and went to live in Wiesbaden, where he made several attempts to write for the stage. One of his pieces, The School for Princes (published in 1875 in the fourth volume of Ideas), expresses his non-conformist views on politics, society and religion. He moved his residence to Nieder Ingelheim, on the Rhine, where he died in 1887.

In June 2002, the Dutch Maatschappij der Nederlandse Letterkunde (Society for Dutch Literature) proclaimed Multatuli the most important Dutch writer of all time[2].

Multatuli's brother, Jan Douwes Dekker, is a grandfather of Ernest Douwes Dekker (also known as Danudirja Setiabudi, an Indonesian National hero).

Minggu, 25 Januari 2009

Phytoplankton

Phytoplankton obtain energy through the process of photosynthesis and must therefore live in the well-lit surface layer (termed the euphotic zone) of an ocean, sea, lake, or other body of water. Phytoplankton account for half of all photosynthetic activity on Earth.[2] Thus phytoplankton are responsible for much of the oxygen present in the Earth's atmosphere – half of the total amount produced by all plant life.[3] Their cumulative energy fixation in carbon compounds (primary production) is the basis for the vast majority of oceanic and also many freshwater food webs (chemosynthesis is a notable exception). As a side note, one of the more remarkable food chains in the ocean – remarkable because of the small number of links – is that of phytoplankton fed on by krill (a type of shrimp) fed on by baleen whales.

Phytoplankton are also crucially dependent on minerals. These are primarily macronutrients such as nitrate, phosphate or silicic acid, whose availability is governed by the balance between the so-called biological pump and upwelling of deep, nutrient-rich waters. However, across large regions of the World Ocean such as the Southern Ocean, phytoplankton are also limited by the lack of the micronutrient iron. This has led to some scientists advocating iron fertilization as a means to counteract the accumulation of human-produced carbon dioxide (CO2) in the atmosphere.[4] Large-scale experiments have added iron (usually as salts such as iron sulphate) to the oceans to promote phytoplankton growth and draw atmospheric CO2 into the ocean. However, controversy about manipulating the ecosystem and the efficiency of iron fertilization has slowed such experiments.[5]

While almost all phytoplankton species are obligate photoautotrophs, there are some that are mixotrophic and other, non-pigmented species that are actually heterotrophic (the latter are often viewed as zooplankton). Of these, the best known are dinoflagellate genera such as Noctiluca and Dinophysis, that obtain organic carbon by ingesting other organisms or detrital material.

The term phytoplankton encompasses all photoautotrophic microorganisms in aquatic food webs. Phytoplankton serve as the base of the aquatic food web, providing an essential ecological function for all aquatic life. However, unlike terrestrial communities, where most autotrophs are plants, phytoplankton are a diverse group, incorporating protistan eukaryotes and both eubacterial and archaebacterial prokaryotes. There are about 5,000 species of marine phytoplankton.[6] There is uncertainty in how such diversity has evolved in an environment where competition for only a few resources would suggest limited potential for niche differentiation.[7]

In terms of numbers, the most important groups of phytoplankton include the diatoms, cyanobacteria and dinoflagellates, although many other groups of algae are represented. One group, the coccolithophorids, is responsible (in part) for the release of significant amounts of dimethyl sulfide (DMS) into the atmosphere. DMS is converted to sulfate and these sulfate molecules act as cloud condensation nuclei, increasing general cloud cover. In oligotrophic oceanic regions such as the Sargasso Sea or the South Pacific Gyre, phytoplankton is dominated by the small sized cells, called picoplankton,

Jumat, 23 Januari 2009

Phytophthoras

Phytophthoras may reproduce sexually or asexually. In many species, sexual structures have never been observed, or have only been observed in laboratory matings. In homothallic species, sexual structures occur in single culture. Heterothallic species have mating strains, designated as A1 and A2. When mated, antheridia introduce gametes into oogonia, either by the oogonium passing through the antheridium (amphigyny) or by the antheridium attaching to the proximal (lower) half of the oogonium (paragyny), and the union producing oospores. Like animals, but not like most true Fungi, meiosis is gametic, and somatic nuclei are diploid. Asexual (mitotic) spore types are chlamydospores, and sporangia which produce zoospores. Chlamydospores are usually spherical and pigmented, and may have a thickened cell wall to aid in its role as a survival structure. Sporangia may be retained by the subtending hyphae (non-caducous) or be shed readily by wind or water tension (caducous) acting as dispersal structures. Also, sporangia may release zoospores, which have two unlike flagella which they use to swim towards a host plant.

The life cycle of Phytophthora


Phytophthora forms: A: Sporangia. B: Zoospore. C: Chlamydospore. D: Oospor

Kamis, 22 Januari 2009

Florence Nightingale

Florence Nightingale's most famous contribution came during the Crimean War, which became her central focus when reports began to filter back to Britain about the horrific conditions for the wounded. On 21 October 1854, she and a staff of 38 women volunteer nurses, trained by Nightingale and including her aunt Mai Smith,[6] were sent (under the authorization of Sidney Herbert) to Turkey, about 545 km across the Black Sea from Balaklava in the Crimea, where the main British camp was based.

Nightingale arrived early in November 1854 at Selimiye Barracks in Scutari (modern-day Üsküdar in Istanbul). She and her nurses found wounded soldiers being badly cared for by overworked medical staff in the face of official indifference. Medicines were in short supply, hygiene was being neglected, and mass infections were common, many of them fatal. There was no equipment to process food for the patients.

Death rates did not drop; on the contrary, they began to rise. The death count was the highest of all hospitals in the region. During her first winter at Scutari, 4,077 soldiers died there. Ten times more soldiers died from illnesses such as typhus, typhoid, cholera and dysentery than from battle wounds. Conditions at the temporary barracks hospital were so fatal to the patients because of overcrowding and the hospital's defective sewers and lack of ventilation. A Sanitary Commission had to be sent out by the British government to Scutari in March 1855, almost six months after Florence Nightingale had arrived, and effected flushing out the sewers and improvements to ventilation.[7] Death rates were sharply reduced. Until recently it was commonly asserted that Nightingale reduced the death rate from 42% to 2% either by making improvements in hygiene herself or by calling for the Sanitary Commission. For example the 1911 first edition of the Dictionary of National Biography made this claim, but the second edition in 2001 did not. During the war she did not recognize hygiene as the predominant cause of death, and she never claimed credit for helping to reduce the death rate.[8]

Nightingale continued believing the death rates were due to poor nutrition and supplies and overworking of the soldiers. It was not until after she returned to Britain and began collecting evidence before the Royal Commission on the Health of the Army that she came to believe that most of the soldiers at the hospital were killed by poor living conditions. This experience influenced her later career, when she advocated sanitary living conditions as of great importance. Consequently, she reduced deaths in the army during peacetime and turned attention to the sanitary design of hospitals.

Rabu, 21 Januari 2009

Alfred nobel

In 1888 Alfred's brother Ludwig died while visiting Cannes and a French newspaper erroneously published Alfred's obituary.[2] It condemned him for his invention of dynamite and is said to have brought about his decision to leave a better legacy after his death.[2][3] The obituary stated Le marchand de la mort est mort ("The merchant of death is dead")[2] and went on to say, "Dr. Alfred Nobel, who became rich by finding ways to kill more people faster than ever before, died yesterday."[4] On 27 November 1895, at the Swedish-Norwegian Club in Paris, Nobel signed his last will and testament and set aside the bulk of his estate to establish the Nobel Prizes, to be awarded annually without distinction of nationality. He died of a stroke on 10 December 1896 at Sanremo, Italy. After taxes and bequests to individuals, Nobel's will gave 31,225,000 Swedish kronor (equivalent to about 1.8 billion kronor or 250 million US dollars in 2008) to fund the prizes.[5]

The first three of these prizes are awarded for eminence in physical science, in chemistry and in medical science or physiology; the fourth is for literary work "in an ideal direction" and the fifth prize is to be given to the person or society that renders the greatest service to the cause of international fraternity, in the suppression or reduction of standing armies, or in the establishment or furtherance of peace congresses. There is no prize awarded for mathematics[6], but see Abel Prize.

The Formulation about the literary prize, "in an ideal direction" (i idealisk riktning in Swedish), is cryptic and has caused much confusion. For many years, the Swedish Academy interpreted "ideal" as "idealistic" (idealistisk) and used it as a reason not to give the prize to important but less Romantic authors, such as Henrik Ibsen and Leo Tolstoy. This interpretation has since been revised, and the prize has been awarded to, for example, Dario Fo and José Saramago, who definitely do not belong to the camp of literary idealism.[original research?]

There was also quite a lot of room for interpretation by the bodies he had named for deciding on the physical sciences and chemistry prizes, given that he had not consulted them before making the will. In his one-page testament, he stipulated that the money go to discoveries or inventions in the physical sciences and to discoveries or improvements in chemistry. He had opened the door to technological awards, but had not left instructions on how to deal with the distinction between science and technology. Since the deciding bodies he had chosen were more concerned with the former, it is not surprising that the prizes went to scientists and not to engineers, technicians or other inventors. In a sense, the technological prizes announced recently by the World Technology Network (not funded by the Nobel foundation) indirectly fill this gap.

In 2001, Alfred Nobel's great-grandnephew, Peter Nobel (b. 1931), asked the Bank of Sweden to differentiate its award to economists given "in Alfred Nobel's memory" from the five other awards. This has caused much controversy whether the Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel is actually a "Nobel Prize".