miércoles, 18 de mayo de 2011
martes, 17 de mayo de 2011
lunes, 16 de mayo de 2011
sábado, 14 de mayo de 2011
gratest discoveries and invention
Greatest discoveries and invention
Louis Pasteur (12 December 1822 – 28 September 1895)
French chemist and biologist.
· He solved the mysteries of rabies, anthrax, chicken cholera and silkworm diseases and contributed to the development of the first vaccines.
· He was inventor of process of pasteurization
His work has protected millions of people from diseases through vaccination and pasteurization.
martes, 10 de mayo de 2011
Greatest discoveries and inventions
Jonas Edward Salk (October 28, 1914 - June 23, 1995) was an American medical researcher and virologist, best known for his discovery and development of the first polio vaccine safe and effective. Born in New York City, from Russian immigrants and Jewish families.
The Salk vaccine was named one of the first effective vaccine for immunization against a virus in general.Salk injected a killed polio virus to the patient, which enables the human body develop immunity to it, without falling seriously ill. Once immune to that form of the virus, the body is also immunized against the most virulent form of the virus itself.
Valentina Casartelli
Valentina Casartelli
miércoles, 4 de mayo de 2011
Greatest discoveries and inventions
Thomas Alva Edison
Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor, scientist, and businessman who developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and a long-lasting, practical electric light bulb. Dubbed "The Wizard of Menlo Park" (now Edison, New Jersey) by a newspaper reporter, he was one of the first inventors to apply the principles of mass production and large teamwork to the process of invention, and therefore is often credited with the creation of the first industrial research laboratory.
Edison is the third most prolific inventor in history, holding 1,093 US patents in his name, as well as many patents in the United Kingdom, France, and Germany. He is credited with numerous inventions that contributed to mass communication and, in particular, telecommunications. These included a stock ticker, a mechanical vote recorder, a battery for an electric car, electrical power, recorded music and motion pictures. His advanced work in these fields was an outgrowth of his early career as a telegraph operator. Edison originated the concept and implementation of electric-power generation and distribution to homes, businesses, and factories – a crucial development in the modern industrialized world. His first power station was on Manhattan Island, New York.
Important Inventions:
phonograph, light bulb, Kinetoscope, telegraph
Federico Tintorelli
Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor, scientist, and businessman who developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and a long-lasting, practical electric light bulb. Dubbed "The Wizard of Menlo Park" (now Edison, New Jersey) by a newspaper reporter, he was one of the first inventors to apply the principles of mass production and large teamwork to the process of invention, and therefore is often credited with the creation of the first industrial research laboratory.
Edison is the third most prolific inventor in history, holding 1,093 US patents in his name, as well as many patents in the United Kingdom, France, and Germany. He is credited with numerous inventions that contributed to mass communication and, in particular, telecommunications. These included a stock ticker, a mechanical vote recorder, a battery for an electric car, electrical power, recorded music and motion pictures. His advanced work in these fields was an outgrowth of his early career as a telegraph operator. Edison originated the concept and implementation of electric-power generation and distribution to homes, businesses, and factories – a crucial development in the modern industrialized world. His first power station was on Manhattan Island, New York.
Important Inventions:
phonograph, light bulb, Kinetoscope, telegraph
Federico Tintorelli
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