Cllas17
Date june02/2010
Topic the cell theory
1) Robert Hooke: (Freshwater, July 18, 1635 - London, March 3, 1703) English scientist. It was, , ne of the most important experimental scientists in the history of science, tireless polemicist with a creative genius of the first order. His interests spanned such disparate fields as biology, medicine, timing, planetary physics, mechanics of deformable solids, microscopy, sailing and architecture.
2)
1) Antonie Philips van Leeuwenhoek: (in Dutch also Anthony, Antoni, or Theunis, in English, Antony or Anton) (born on October 24, 1632 and died on August 26, 1723 – buried on August 30) was a Dutch tradesman and scientist from Delft, Netherlands.
2) He is commonly known as "the Father of Microbiology", and considered to be the first microbiologist. He is best known for his work on the improvement of the microscope and for his contributions towards the establishment of microbiology.
1Matthias Jakob Schleiden :(April 5, 1804 - June 23, 1881) was a German botanist who, along with fellow physiologist Theodor Schwann, formulated the cell theory.
2) Controversial man of character, scoffed at the botanists of his time, which was limited to name and describe plants. Schleiden studied them under a microscope and conceived the idea that they were composed of identifiable units or cells.
1) Theodor Schwann: (Neuss am Rhein, Germany today, December 7, 1810 - Cologne, ibid., January 11, 1882). Physiologist and anatomist alemán. Profesor of anatomy at the Catholic University of Louvain (1838-1848) and then at the University of Liège (1848-1879).
2) Studied the spontaneous generation of gastric digestion (pepsin found in gastric juice) fermentation and nerve fibers. Described in these fibers the sheath of Schwann.
miércoles, 2 de junio de 2010
miércoles, 21 de abril de 2010
saturn
Class: 9
Item: planets in our solar system
Date: 21/10/april
Activity
About the planets consult
1 name:¿what is the originin?
Their name leaves the zeus son the titan Greek cronos, due to its orbital position.
2 characteristics:
The Saturn rings extend in the equatorial plane of the planet from (6630 km to the 120.700 kms) and they are made up of particles with abundant water freeze.
3 structure:
Saturn has a nucleon been solid for above an extensive layer of hydrogenate, liquidate and solid
4 rotation period:
The period of rotation is of 29 years and 167 terrestrial days
5 revolve period:
The period of relove is the10 hours 19 minutes.
6 moons:
this planet has 61 moons, but those but acquaintances are: Rea, Dione, Tetis, Japeto and Encelado
jueves, 15 de abril de 2010
martes, 9 de marzo de 2010
SHATTER
Class:4
Date:march/03/2010
Item:life of de stars
The stars are origins in the nevuloso; it is a mas of cosmic gas.
A stars is foemed by helium(He);hydrogen(H);is hot state.
Cicly of life a stars
All the stars have a life cycle; a star is a mass hot gas
White midget
Are coumpound by atoms in plasm state; its temperature 200.000Cº
The temperature down and the stars becomes in a yellow mediats.
Yello mediants
The yellow mediants is a big star it has yellow color and its temperature 5.000Cº.
The red giant
Is a very big star; its mass down and its temperature too;it has around to3.000Cº; its nucleus is like a whitle widget star.and the elium exheusted.
Homework
Consultar sobre la super gigante roja,y sus posibles transformaciones.
Super gigante roja
In astronomy, they are denominated red supergigantes to stars supergigantes (of class of brightness I) of ghastly type K or M. are the biggest stars (in terms of volume) that they are in the universe, although they are not the most massive and, as their name it indicates it, their surfaces are of reddish and lightly dark color.
The stars with more than some 10 solar masses, after consuming their hydrogen in the nucleus during the stage of main sequence, they become red supergigantes during their stage of coalition of helium. These stars are not the hottest, but rather, relatively, they are Also among the coldest contrary to the blue giants whose superficial temperatures vary between 28.000 and 50.000 K, those of these stars usually oscillate between 3000 and 4000 K.
Date:march/03/2010
Item:life of de stars
The stars are origins in the nevuloso; it is a mas of cosmic gas.
A stars is foemed by helium(He);hydrogen(H);is hot state.
Cicly of life a stars
All the stars have a life cycle; a star is a mass hot gas
White midget
Are coumpound by atoms in plasm state; its temperature 200.000Cº
The temperature down and the stars becomes in a yellow mediats.
Yello mediants
The yellow mediants is a big star it has yellow color and its temperature 5.000Cº.
The red giant
Is a very big star; its mass down and its temperature too;it has around to3.000Cº; its nucleus is like a whitle widget star.and the elium exheusted.
Homework
Consultar sobre la super gigante roja,y sus posibles transformaciones.
Super gigante roja
In astronomy, they are denominated red supergigantes to stars supergigantes (of class of brightness I) of ghastly type K or M. are the biggest stars (in terms of volume) that they are in the universe, although they are not the most massive and, as their name it indicates it, their surfaces are of reddish and lightly dark color.
The stars with more than some 10 solar masses, after consuming their hydrogen in the nucleus during the stage of main sequence, they become red supergigantes during their stage of coalition of helium. These stars are not the hottest, but rather, relatively, they are Also among the coldest contrary to the blue giants whose superficial temperatures vary between 28.000 and 50.000 K, those of these stars usually oscillate between 3000 and 4000 K.
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