Ingles
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Publicado: 8 de abril de 2011
The historical development of the microscope.
Magnification by simple lenses has been known from ancient times, but the development of the modem microscope dates from the construction of compoundlens systems, which occurred some time in the period between 1590 and 161.
In 1600, hans and Zacharias Jannsen constructed a simple instrument made of a pair or lense mounted in a sliding tube. In1611 johannes Kepler described a compound- lens system using a convex lens.
The man generally considered the founder of microbiology is the Dutch biologist Antonvan Leeuwenhoek ( 1632-1723).
Hebecame interested in science when, as a businessman, he began grinding lenses and building simple microscope as a hobby. Each microscope consisted of a flat brass or copper plate in which a small,single glass lens was mounted.
The lens was held up to the eye, and the object to be studied was placed on the head of a movable pin just on the other side of the lens.
Leeuwenhoek made over 400microscopes, many of which still exist.
The most powerful of these instruments can magnify objects about 275 times.
He was the first person to observe single celled animals (protozoa) with amicroscope. He was also the first person to observe clearly and to describe red blood cells in humans and other animals, as well as sperm cells.
El desarrollo histórico del microscopio.
Ampliación delentes simples se ha conocido desde la antigüedad, pero el desarrollo de las fechas módem microscopio de la construcción de sistemas de lentes compuestas, que se produjo en algún momento del períodocomprendido entre 1590 y 161.
En 1600, Hans y Zacharias Jannsen construyó un instrumento simple hecho de un par o lente montada en un tubo de deslizamiento. En 1611 Johannes Kepler describe un sistemacompuesto de lentes con una lente convexa.
El hombre generalmente considerado el fundador de la microbiología es el biólogo holandés Antonvan Leeuwenhoek (1632-1723).
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Magnification by simple lenses has been known from ancient times, but the development of the modem microscope dates from the construction of compoundlens systems, which occurred some time in the period between 1590 and 161.
In 1600, hans and Zacharias Jannsen constructed a simple instrument made of a pair or lense mounted in a sliding tube. In1611 johannes Kepler described a compound- lens system using a convex lens.
The man generally considered the founder of microbiology is the Dutch biologist Antonvan Leeuwenhoek ( 1632-1723).
Hebecame interested in science when, as a businessman, he began grinding lenses and building simple microscope as a hobby. Each microscope consisted of a flat brass or copper plate in which a small,single glass lens was mounted.
The lens was held up to the eye, and the object to be studied was placed on the head of a movable pin just on the other side of the lens.
Leeuwenhoek made over 400microscopes, many of which still exist.
The most powerful of these instruments can magnify objects about 275 times.
He was the first person to observe single celled animals (protozoa) with amicroscope. He was also the first person to observe clearly and to describe red blood cells in humans and other animals, as well as sperm cells.
El desarrollo histórico del microscopio.
Ampliación delentes simples se ha conocido desde la antigüedad, pero el desarrollo de las fechas módem microscopio de la construcción de sistemas de lentes compuestas, que se produjo en algún momento del períodocomprendido entre 1590 y 161.
En 1600, Hans y Zacharias Jannsen construyó un instrumento simple hecho de un par o lente montada en un tubo de deslizamiento. En 1611 Johannes Kepler describe un sistemacompuesto de lentes con una lente convexa.
El hombre generalmente considerado el fundador de la microbiología es el biólogo holandés Antonvan Leeuwenhoek (1632-1723).
Se interesó en la...
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