Saturday, 30 August 2014
Starting a farmhand, this clock-maker invented things, revolutionized mining & virtually contributed to Swedish development!!!
Christopher Polhammar (18 December 1661 – 30 August 1751), better known as Christopher Polhem was a Swedish scientist, inventor and industrialist. He made significant contributions to the economic and industrial development of Sweden, particularly mining. Polhem was born on the island of Gotland in the small village of Tingstäde, situated northeast of Visby.
When Polhem was 8, his father died and his mother, Christina Eriksdotter Schening from Vadstena, Östergötland remarried. As a result of conflicts with his stepfather, his private tuition was no longer paid for and Polhem was sent to live with his uncle in Stockholm. In Stockholm he attended a German school until the age of 12 when his uncle died; once again Polhem was left without the possibility of education. He took a job as a farmhand on Vansta, a property in Södertörn, Stockholm. Read more...
Friday, 29 August 2014
One of the earliest inventors who reinvented the wheel in two & added pedals and crank mechanism to it!!!
Pierre Lallement (October 25, 1843 - August 29, 1891) is considered by some to be the inventor of the bicycle. In 1862 while Lallement was employed building baby carriages in Nancy he saw someone riding a dandy horse(The dandy horse is a human-powered vehicle that, being the first means of transport to make use of the two-wheeler principle, is regarded as the forerunner of the bicycle. The dandy horse was invented by Baron Karl Drais in Mannheim, Germany and patented in January 1818), a forerunner of the bicycle that required the rider to propel the vehicle by walking. Lallement modified what he had seen by adding a transmission comprising a rotary crank mechanism and pedals attached to the front-wheel hub, thus creating the first true bicycle. Read more...
Thursday, 28 August 2014
Fascinated by electric gadgets in childhood, he applied his skills develop a CT scanner; a good tool for physiology & medicine!!
Sir Godfrey Newbold Hounsfield, CBE, FRS, (28 August 1919 – 12 August 2004) was an English electrical engineer who shared the 1979 Nobel Prize for Physiology or Medicine with Allan McLeod Cormack for his part in developing the diagnostic technique of X-ray computed tomography (CT). His name is immortalised in the Hounsfield scale, a quantitative measure of radio density used in evaluating CT scans. The scale is defined in Hounsfield units (symbol HU), running from air at −1000 HU, through water at 0 HU, and up to dense cortical bone at +1000 HU and more.Read more...
Wednesday, 27 August 2014
Aspiring actor in youth, this mycologist published novel to pay for education & revolutionized breweries by his work on yeast!!
Emil Christian Hansen (May 8, 1842 – August 27, 1909) was a Danish mycologist and fermentation physiologist. Born in Ribe, Hansen’s large family and poor circumstances often made it necessary for Emil Hansen to help his father. In 1850 he entered school and showed himself to be a diligent pupil and an avid reader. He wished to become an actor, but his father would not allow it. In 1860 he became a journeyman house painter; he also sought to become an artist, but the Academy of Fine Arts refused his application for admission.
Hansen became a private tutor in 1862 at the estate of Holsteinborg, where he prepared to become a teacher. During his stay at Holsteinborg the botanist Peder Nielsen, at that time schoolmaster in Ørslev, aroused Hansen’s interest in botany and gave him emotional and financial support. In spite of illness Hansen completed a three-year teaching course at Copenhagen Polytechnical High School in 1869, earning money by publishing novels. Read more...
Tuesday, 26 August 2014
Joseph-Michel Montgolfier (26 August 1740 – 26 June 1810) and Jacques-Étienne Montgolfier (6 January 1745 – 2 August 1799) were the inventors of the Montgolfière-style hot air balloon, globe aérostatique. The brothers succeeded in launching the first manned ascent, carrying Étienne into the sky. The brothers were born into a family of paper manufacturers in Annonay, in Ardèche, France. Their parents were Pierre Montgolfier (1700–1793) and his wife, Anne Duret (1701–1760), who had sixteen children.
Of the two brothers, it was Joseph who first contemplated building machines as early as 1777 when he observed laundry drying over a fire incidentally form pockets that billowed upwards. Joseph made his first definitive experiments in November 1782 while living in the city of Avignon. He reported some years later that he was watching a fire one evening while contemplating one of the great military issues of the day—an assault on the fortress of Gibraltar, which had proved impregnable from both sea and land.
Joseph mused on the possibility of an air assault using troops lifted by the same force that was lifting the embers from the fire. He believed that contained within the smoke was a special gas, which he called Montgolfier Gas, with a special property he called levity. Read more...
Monday, 25 August 2014
The blacksmith & bookbinder's apprentice; despite a nervous breakdown became one of the most influential scientists in history!!
Michael Faraday, FRS (22 September 1791 – 25 August 1867) was an English scientist who contributed to the fields of electromagnetism and electrochemistry. His main discoveries include those of electromagnetic induction, diamagnetism and electrolysis.
Faraday was born in Newington Butts, which is now part of the London Borough of Southwark, but which was then a suburban part of Surrey. His family was not well off. James Faraday moved his wife and two children to London during the winter of 1790 from Outhgill in Westmorland, where he had been an apprentice to the village blacksmith. The young Michael Faraday, who was the third of four children, having only the most basic school education, had to educate himself.
At fourteen he became the apprentice to George Riebau, a local bookbinder and bookseller in Blandford Street. During his seven-year apprenticeship he read many books, including Isaac Watts' The Improvement of the Mind, and he enthusiastically implemented the principles and suggestions contained therein. At this time he also developed an interest in science, especially in electricity. Faraday was particularly inspired by the book Conversations on Chemistry by Jane Marcet. Read more...
Saturday, 23 August 2014
This clock repairman's son, an engineer, learnt psychiatry, was thrown off the staff; developed Choice theory & Reality therapy!
William Glasser (May 11, 1925 – August 23, 2013) was an American psychiatrist. Glasser was the developer of Reality Therapy and Choice Theory. His ideas, which focus on personal choice, personal responsibility and personal transformation, are considered controversial by mainstream psychiatrists, who focus instead on classifying psychiatric syndromes as "illnesses", and who often prescribe psychotropic medications to treat mental disorders. Read more...
Friday, 22 August 2014
Denis Papin (22 August 1647 – c. 1712) was a French physicist,mathematician and inventor, best known for his pioneering invention of the steam digester, the forerunner of the steam engine, and of the pressure cooker. Born in Chitenay (Loir-et-Cher, Centre Région), Papin attended a Jesuit school there, and from 1661 attended University at Angers, from which he graduated with a medical degree in 1669. In 1673, while working with Christiaan Huygens and Gottfried Leibniz in Paris, he became interested in using a vacuum to generate motive power.
Papin first visited London in 1675, and worked with Robert Boyle from 1676 to 1679, publishing an account of his work in Continuation of New Experiments (1680). During this period, Papin invented the steam digester, a type of pressure cooker with a safety valve. He first addressed the Royal Society in 1679 on the subject of his digester, and remained mostly in London until about 1687, when he left to take up an academic post in Germany. In Germany he was able to live with fellow Huguenot exiles from France.
In 1689, Papin suggested that a force pump or bellows could maintain the pressure and fresh air inside a diving bell. While in Marburg in 1690, having observed the mechanical power of atmospheric pressure on his 'digester', Papin built a model of a pistonsteam engine, the first of its kind. Papin continued to work on steam engines for the next fifteen years.
In 1695 he moved from Marburg to Kassel. In 1705 he developed a second steam engine with the help of Gottfried Leibniz, based on an invention by Thomas Savery, but this used steam pressure rather than atmospheric pressure. Details of the engine were published in 1707. During his stay in Kassel in Hesse, in 1704, he constructed a ship powered by his steam engine, mechanically linked to paddles.
This made him the first to construct a steam-powered boat (or vehicle of any kind).Then he has poured the first steam cylinder of the world in the iron foundry Veckerhagen. Today this place is known as Reinhardshagen-Veckerhagen. Steam-driven water-lifting machine by Papin in 1707, reconstruction, from Nouvelle manière d'élever l'eau par la force du feu. Musée des Arts et Métiers.
Papin returned to London in 1707, leaving his wife in Germany. Several of his papers were put before the Royal Society between 1707 and 1712 without acknowledging or paying him, about which he complained bitterly. Papin's ideas included a description of his 1690 atmospheric steam engine, similar to that built and put into use by Thomas Newcomen in 1712, thought to be the year of Papin's death.
The last surviving evidence of Papin's whereabouts came in a letter he wrote dated 23 January 1712. At the time he was destitute, and it is believed he died that year and was buried in an unmarked pauper's pit.
Pressure cooking is the process of cooking food, using water or other cooking liquid, in a sealed vessel—known as a pressure cooker, which does not permit air or liquids to escape below a pre-set pressure. Pressure cookers are used for cooking food more quickly than conventional cooking methods, which also saves energy.
Wednesday, 20 August 2014
Living example 'Simplicity is the ultimate sophistication', most sought chairman by global businesses seldom needs introduction!
Nagavara Ramarao Narayana Murthy CBE (born 20 August 1946), commonly referred to as Narayana Murthy was born on 20 August 1946 in Sidlaghatta, Karnataka. After completing his school education, he appeared for the Indian Institute of Technology entrance test but could not attend. Instead he went to the National Institute of Engineering and graduated in 1967 with a degree in Electrical Engineering. In 1969 he received his master's degree from the Indian Institute of Technology in Kanpur. He is an Indian IT industrialist and the co-founder of Infosys, a multinational corporation providing business consulting, technology, engineering, and outsourcing services.
Tuesday, 19 August 2014
This curious phil started playing with electricity systems from childhood; created FUSOR & had 165 patents!!!
Philo Taylor Farnsworth (August 19, 1906 – March 11, 1971) was an American inventor and television pioneer. He made many contributions that were crucial to the early development of all-electronic television. He is perhaps best known for inventing the first fully functional all-electronic image pickup device (video camera tube), the "image dissector", as well as the first fully functional and complete all-electronic television system. He was also the first person to demonstrate such a system to the public. Farnsworth developed a television system complete with receiver and camera, which he produced commercially in the firm of the Farnsworth Television and Radio Corporation, from 1938 to 1951.
In later life, Farnsworth invented a small nuclear fusion device, the Farnsworth–Hirsch fusor, or simply "fusor", employing inertial electrostatic confinement (IEC). Although not a practical device for generating nuclear energy, the fusor serves as a viable source of neutrons. The design of this device has been the acknowledged inspiration for other fusion approaches including the Polywell reactor concept in terms of a general approach to fusion design. Farnsworth held 165 patents, mostly in radio and television.
Philo T. Farnsworth was born August 19, 1906, the eldest of five children of Lewis Edwin Farnsworth and Serena Amanda Bastian, a Mormon couple then living in a small log cabin built by Lewis's father in a place called Indian Creek near Beaver, Utah. Philo was excited to find his new home was wired for electricity, with a Delco generator providing power for lighting and farm machinery. He was a quick study in mechanical and electrical technology, repairing the troublesome generator, and upon finding a burned out electric motor among some items discarded by the previous tenants, proceeding to rewind the armature and convert his mother's hand-powered washing machine into an electric-powered one.
Philo developed an early interest in electronics after his first telephone conversation with an out-of-state relative and the discovery of a large cache of technology magazines in the attic of the family’s new home, and won a $25 first prize in a pulp-magazine contest for inventing a magnetized car lock.
Farnsworth excelled in chemistry and physics at Rigby High School. In 1924 he applied to the United States Naval Academy in Annapolis, Maryland, where he was recruited after he earned the nation's second highest score on academy tests. Farnsworth was prepared to show his models and drawings to a patent attorney who was nationally recognized as an authority on electrophysics. Everson and Gorrell agreed that Farnsworth should apply for patents for his designs, a decision which proved crucial in later disputes with RCA.
Most television systems in use at the time used image scanning devices ("rasterizers") employing rotating "Nipkow disks" comprising lenses arranged in spiral patterns such that they swept across an image in a succession of short arcs while focusing the light they captured on photosensitive elements, thus producing a varying electrical signal corresponding to the variations in light intensity. Farnsworth recognized the limitations of the mechanical systems, and that an all-electronic scanning system could produce a superior image for transmission to a receiving device. On September 7, 1927, Farnsworth's image dissector camera tube transmitted its first image, a simple straight line, to a receiver in another room of his laboratory at 202 Green Street in San Francisco.
Many inventors had built electromechanical television systems before Farnsworth's seminal contribution, but Farnsworth designed and built the world's first working all-electronic television system, employing electronic scanning in both the pickup and display devices. He first demonstrated his system to the press on September 3, 1928, and to the public at the Franklin Institute in Philadelphia on August 25, 1934.
The Farnsworth–Hirsch fusor is an apparatus designed by Farnsworth to create nuclear fusion. Unlike most controlled fusion systems, which slowly heat a magnetically confined plasma, the fusor injects high temperature ions directly into a reaction chamber, thereby avoiding a considerable amount of complexity. When the Farnsworth-Hirsch fusor was first introduced to the fusion research world in the late 1960s, the fusor was the first device that could clearly demonstrate it was producing fusion reactions at all. Hopes at the time were high that it could be quickly developed into a practical power source. However, as with other fusion experiments, development into a power source has proven difficult. Nevertheless, the fusor has since become a practical neutron source and is produced commercially for this role.
Sunday, 17 August 2014
Saatam Aatham, Asthami Rohini, Uriadi, Dahi handi, Nandotsav & many more, all the names are the MAAKHAN-CHOR GOD'S Birthdays!!!
Krishna Janmashtami, also known as Krishnashtami, Saatam Aatham,Gokulashtami, Ashtami Rohini, Srikrishna Jayant or Sree Jayanti, is an annual celebration of the birth of the Hindu deity Krishna, the eighth avatar of Vishnu. The festival is celebrated on the eighth day (Ashtami) of the Krishna Paksha (dark fortnight) of the month of Shraavana (August–September) in the Hindu calendar. Rasa lila, dramatic enactments of the life of Krishna, are a special feature in regions of Mathuraand Vrindavan, and regions following Vaishnavism in Manipur.
While the Rasa lila re-creates the flirtatious aspects of Krishna's youthful days, the Dahi Handi celebrate God's playful and mischievous side, where teams of young men form human towers to reach a high-hanging pot of butter and break it. This tradition, also known as uriadi, is a major event in Tamil Nadu on Gokulashtami. Krishna Janmashtami is followed by the festival Nandotsav, which celebrates the occasion when Nanda Baba distributed gifts to the community in honour of the birth.
Krishna was the 8th son of Devaki and Vasudeva. Based on scriptural details and astrological calculations, the date of Krishna's birth, known as Janmashtami, is 19 July 3228 BCE and he lived until 3102 BCE. Krishna belonged to the Vrishni clan of Yadavas from Mathura, and was the eighth son born to the princess Devaki and her husband Vasudeva.
Mathura was the capital of the Yadavas, to which Krishna's parents Vasudeva and Devaki belonged. King Kansa, Devaki's brother, had ascended the throne by imprisoning his father, King Ugrasena. Afraid of aprophecy that predicted his death at the hands of Devaki's eighth son, Kansa had the couple locked in a prison cell. After Kansa killed the first six children, and Devaki's apparent miscarriage of the seventh (which was actually a secret transfer of the infant to Rohini as Balarama), Krishna was born.
Following the birth, Vishnu ordered Vasudeva to take Krishna to Gokul to Nanda and Yashoda, where he could live safely, away from his Uncle Kansa. Vasudeva took Krishna with him and crossed Yamuna to reach Gokul. There, everyone was asleep; so he quietly kept him there and returned with Yashoda's daughter. Kansa, thinking her to be Devki's eight child, threw her on a stone. But she rose into the air and transformed into Yogmaya (who is Vishnu's helper) and warned Kansa about his death. Then, she disappeared. Krishna grew up in Gokul with his brother, Balram. He then returned to Mathura and killed Kansa with the help of Balram.
Celebration around Geographies
Maharashtra: Gokulashtami, popularly known in Mumbai and Pune as Dahi Handi, is celebrated as an event which involves making ahuman pyramid and breaking an earthen pot (handi) filled with buttermilk (dahi), which is tied at a convenient height. The topmost person tries to break the handi by hitting it with a blunt object. When the handi breaks, the buttermilk is spilled over the entire group. This event is based on the legend of the child-god Krishna stealing butter. A participant in this festival is called a govinda or govinda pathak.
Goa: The coastal state of Goa has been associated with the Yadavas. Known as Ahstam in Goa,celebrated with great zeal on family level as well as community levels,especially in the temples of Devaki Krishna(perhaps the only temple dedicated to Devaki in India) and Naroa, the ancient town of Kadambas.
Uttar Pradesh: Places in Uttar Pradesh that are associated with Krishna's childhood, such as Mathura, Gokul and Vrindavan, attract visitors from all over India, who go there to participate in the festival celebrations.
Gujrat: People in the city of Dwarka in Gujarat – where Krishna is believed to have established his Kingdom – celebrate the festival by visiting the Dwarkadhish temple.
Jammu: In Jammu, kite flying is an important part of the celebration on his day.
Odisha: In the eastern state of Odisha, in the region around Puri and in Nabadwip, West Bengali people celebrate Janmashtami by fasting and worship until midnight. The next day is called "Nanda Utsav" or the joyous celebration of Krishna's foster parents Nanda and Yashoda.
Manipur: popularly known in Manipur as Krishna Janma – is a significant festival celebrated at two temples in Imphal, the capital city of Manipur. The first festival is at the Govindaji temple, and the second is at the International Society for Krishna Consciousness temple. Devotees of Lord Krishna gather mostly at the ISKCON temple.
Tamilnadu: The people decorate the floor with kolams (decorative pattern drawn with rice batter). Geetha Govindam and other such devotional songs are sung in praise of Lord Krishna. They draw the footprints of Lord Krishna from the threshold of the house to the temple, which depicts the arrival of Lord Krishna into the house.
Nepal: Janmashtami in nepal is observed here till midnight. Numerous devotees flock to the ancient Krishna temple in old Patan Durbar Square to keep vigil through the revered night of his birth. Observances include people sitting closely together, bodies rocking as women chant the many names of Lord Krisha, such as Narayan, Narayan and Gopal, Gopal. Some sing hymns, others clap their hands, while some others pray. Crowds of men and women edge their way slowly up narrow steps through the seated devotees to the temple's dark interior, to where the main idol stands. There they offer flowers, coins and food, and wait for a glimpse of the Krishna Janmashtami idol.
Bangladesh: Janmashthami is a national holiday in Bangladesh. On Janmashthami, a procession starts from Dhakeshwari Temple in Dhaka, the National Temple of Bangladesh, and then proceeds through the streets of Old Dhaka.
Pakistan: Janmashthami is celebrated by Pakistani Hindus in the Shri Swaminarayan Mandir in Karachi with the singing of bhajans and delivering of sermons on Krishna.
Other regions: The first ever elected government official in the world to issue proclamation for the celebration Janmashtami is Janet Napolitano, while she was the Governor of Arizona. The festival is also celebrated widely by Hindus in Caribbean in the countries of Guyana, Trinidad and Tobago, Jamaica and the former English colony Fiji as well as the former Dutch colony of Suriname. The Hindus in these countries originated from Uttar Pradesh and are the descendants of indentured immigrants from UP.