Black hole
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For other uses, see Black hole (disambiguation).
Simulated view of a black hole in front of the Large Magellanic Cloud. The ratio between the black hole Schwarzschild radius and the observer distance to it is 1:9. Of note is the gravitational lensing effect known as an Einstein ring, which produces a set of two fairly bright and large but highly distorted images of the Cloud as compared to its actual angular size.General relativity
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According to the general theory of relativity, a black hole is a region of space from which nothing, including light, can escape. It is the result of the deformation of spacetime caused by a very compact mass. Around a black hole there is an undetectable surface which marks the point of no return, called an event horizon. It is called "black" because it absorbs all the light that hits it, reflecting nothing, just like a perfect black body in thermodynamics.[1] Under the theory of quantum mechanics black holes possess a temperature and emit Hawking radiation.
martes, 16 de marzo de 2010
miércoles, 10 de marzo de 2010
Life of the stars
Class: 4
Date: March 03/10
Item: Life of the stars
The stars are origins in the nebulous; it is a mass of cosmic gas.
A Stars is formed by helium (He); Hydrogen (h); in hot state.
Cycle of a life of a Star
All the stars have a life cycle; a star is it a mass of cosmic gas in hot state.
WHITE MIDGET
Are compound by atoms in plams state; it´s temperature is 200.000 C. Then it´s temperature down and the Stars becomes in a yellow mediats.
YELLOW MEDIATS
Is a big star; it has yellow color and it´s temperature is 5.000 C.
RED GIANT
Is a very big star; its mass down and it´s temperature too; it has around to 3.000 C; it´s nucleus is like a white midget star; and the helium exhausted.
SUPER RED GIANT
In astronomy, are called red super giants (red super giants in English) to super giants (of luminosity class I) of spectral type K or M. They are the biggest stars (in volume) found in the universe, although not the most massive and as its name implies, their surfaces are red.
The low effective temperature of these stars compared to that of the blue giants, as stated above, is because the density, ie the amount of mass in relation to the volume occupied by such celestial bodies, is very low, so you can also say that the density of red super giants is much smaller than the blue giants, the diameter of these stars is therefore very large, hundreds of times solar, or even much higher. The largest known red super giants in the Galaxy is VY Canis Majoris, VV Cepheid, KW Sagittarii, V354 Cepheid and KY Cygni, all with radio about 1,500 times the solar radius, or about 7 ua, and some even listed as red hyper giants . If they were in the center of the solar system, its surface would be between the orbits of Jupiter and Saturn, or even surpass the date of this planet.
NEBULA
Nebulae (singular nebula, nebulae plural in Latin and English) are regions of the interstellar medium consisting of gas (mostly hydrogen and helium) and dust. They have a significant cosmological importance because many of them are where stars are formed by condensation and aggregation of matter; at other times they are the remnants of stars that are already extinct.
Date: March 03/10
Item: Life of the stars
The stars are origins in the nebulous; it is a mass of cosmic gas.
A Stars is formed by helium (He); Hydrogen (h); in hot state.
Cycle of a life of a Star
All the stars have a life cycle; a star is it a mass of cosmic gas in hot state.
WHITE MIDGET
Are compound by atoms in plams state; it´s temperature is 200.000 C. Then it´s temperature down and the Stars becomes in a yellow mediats.
YELLOW MEDIATS
Is a big star; it has yellow color and it´s temperature is 5.000 C.
RED GIANT
Is a very big star; its mass down and it´s temperature too; it has around to 3.000 C; it´s nucleus is like a white midget star; and the helium exhausted.
SUPER RED GIANT
In astronomy, are called red super giants (red super giants in English) to super giants (of luminosity class I) of spectral type K or M. They are the biggest stars (in volume) found in the universe, although not the most massive and as its name implies, their surfaces are red.
The low effective temperature of these stars compared to that of the blue giants, as stated above, is because the density, ie the amount of mass in relation to the volume occupied by such celestial bodies, is very low, so you can also say that the density of red super giants is much smaller than the blue giants, the diameter of these stars is therefore very large, hundreds of times solar, or even much higher. The largest known red super giants in the Galaxy is VY Canis Majoris, VV Cepheid, KW Sagittarii, V354 Cepheid and KY Cygni, all with radio about 1,500 times the solar radius, or about 7 ua, and some even listed as red hyper giants . If they were in the center of the solar system, its surface would be between the orbits of Jupiter and Saturn, or even surpass the date of this planet.
NEBULA
Nebulae (singular nebula, nebulae plural in Latin and English) are regions of the interstellar medium consisting of gas (mostly hydrogen and helium) and dust. They have a significant cosmological importance because many of them are where stars are formed by condensation and aggregation of matter; at other times they are the remnants of stars that are already extinct.
Organization of the universe
Class: 3
Date: February; Wednesday 24/10
Item:
Organization of the universe
The human being althoug much studied still unknow about the universe; nevertheless been able to identify some components like:
The galaxies
There are groups of a millions of stars, celestials bodies and interstellar matter.
The galaxies have a very long life, beginning whit an irregular galaxie of mass, dust and cosmic gas that rotate constantly to form a barred spiral; the arms follow approaching the middle; the rotation continues and the galaxie end in a spheroid called elliptical galaxie; in this moment is a old galaxie and have thousand of millions years old.
Date: February; Wednesday 24/10
Item:
Organization of the universe
The human being althoug much studied still unknow about the universe; nevertheless been able to identify some components like:
The galaxies
There are groups of a millions of stars, celestials bodies and interstellar matter.
The galaxies have a very long life, beginning whit an irregular galaxie of mass, dust and cosmic gas that rotate constantly to form a barred spiral; the arms follow approaching the middle; the rotation continues and the galaxie end in a spheroid called elliptical galaxie; in this moment is a old galaxie and have thousand of millions years old.
Theories of the origin of the universe
Class:2
Date: February; 17 10
Item: theories of the origin of the universe
1 The big bang theory
2 Steady state theory
3 Oscillation universe theory or the expansion-contraction
4 Parallel universe
www.natureduca.com/cosmos_universo2.php.
1. COSMOS: El Universo - 2ª parte
2. Teorías Sobre la Expansión del Universo. | Asusta2
[1] Horizon - Universos paralelos
24.- Big Bang , Big crunch - El Universo
Teoría del Universo Estacionario
There are many theories that try to explain how as the universe was form.
Explain the origin of the universe as a result of an explosion.
The universe origin with the explosion of a primeval atom temperature attained was eleven billons degrees and this temperature any atom or molecule can hold together
That explosion was not as we know; because it occurred simultaneously in all parts form start of the universe and filling the space of matter(atoms).
Explain that the universe has always been the same.
Explains that the universe continues in small big-bangs, followed by the big crunch.
States that there are multiples universes with different characteristics. There may be alternative or parallel universe.
PLANETS
The planets have different movements. The most important are two: the rotational and translational.
For the rotation, rotate on itself around the axle. This determines the length of day on the planet.
For the translational, planets orbits around the Sun each orbit is the year of the planet.
Each planet takes a different time to complete. The farther, longer.
Giran almost in the same plane, except Pluto, which is more inclined orbit, eccentric and elongated.
CHARACTERISTICS OF THE STARS
They are spherical, composed primarily of hydrogen and helium. Inside develop nuclear reactions that convert the fuel (hydrogen) into heavier elements (helium) and emit outside the energy resulting from this operation.
CICLE OF LIFE OF THE STARS
While interactions occur in the nucleus, supporting the body and this hydrostatics remains iridescent appearance predicted by Niels Bohr's theory of quantized orbits. When some of these interactions (the fusion of matter) expand over time, the outer parts of the object begin to merge their atoms.
MANY GALAXIES IN UNIVERSE
Astronomers think that there are at least several billion galaxies in the universe. The exact number is not known. The estimate of how many galaxies in the universe is done by counting how many galaxies we see in a small area of sky. This number is then used to calculate how many galaxies there are in the whole sky.
WILL THERE LIFE IN THE UNIVERSE?
In a recent paper, Charles Lineweaver and Tamara Davis of the University of New South Wales in Sydney, Australia, suggest that if there are other planets like Earth is likely that at least one third of hostel life.
Date: February; 17 10
Item: theories of the origin of the universe
1 The big bang theory
2 Steady state theory
3 Oscillation universe theory or the expansion-contraction
4 Parallel universe
www.natureduca.com/cosmos_universo2.php.
1. COSMOS: El Universo - 2ª parte
2. Teorías Sobre la Expansión del Universo. | Asusta2
[1] Horizon - Universos paralelos
24.- Big Bang , Big crunch - El Universo
Teoría del Universo Estacionario
There are many theories that try to explain how as the universe was form.
Explain the origin of the universe as a result of an explosion.
The universe origin with the explosion of a primeval atom temperature attained was eleven billons degrees and this temperature any atom or molecule can hold together
That explosion was not as we know; because it occurred simultaneously in all parts form start of the universe and filling the space of matter(atoms).
Explain that the universe has always been the same.
Explains that the universe continues in small big-bangs, followed by the big crunch.
States that there are multiples universes with different characteristics. There may be alternative or parallel universe.
PLANETS
The planets have different movements. The most important are two: the rotational and translational.
For the rotation, rotate on itself around the axle. This determines the length of day on the planet.
For the translational, planets orbits around the Sun each orbit is the year of the planet.
Each planet takes a different time to complete. The farther, longer.
Giran almost in the same plane, except Pluto, which is more inclined orbit, eccentric and elongated.
CHARACTERISTICS OF THE STARS
They are spherical, composed primarily of hydrogen and helium. Inside develop nuclear reactions that convert the fuel (hydrogen) into heavier elements (helium) and emit outside the energy resulting from this operation.
CICLE OF LIFE OF THE STARS
While interactions occur in the nucleus, supporting the body and this hydrostatics remains iridescent appearance predicted by Niels Bohr's theory of quantized orbits. When some of these interactions (the fusion of matter) expand over time, the outer parts of the object begin to merge their atoms.
MANY GALAXIES IN UNIVERSE
Astronomers think that there are at least several billion galaxies in the universe. The exact number is not known. The estimate of how many galaxies in the universe is done by counting how many galaxies we see in a small area of sky. This number is then used to calculate how many galaxies there are in the whole sky.
WILL THERE LIFE IN THE UNIVERSE?
In a recent paper, Charles Lineweaver and Tamara Davis of the University of New South Wales in Sydney, Australia, suggest that if there are other planets like Earth is likely that at least one third of hostel life.
jueves, 11 de febrero de 2010
SCIENCE
SCIENCE
Class:1
Date: Wednesday February 10 2010
Item: Science curriculum
SCIENCE 6 GRADE
Achievement:
Understands and explain the differents theories about the origin of the universe, and the solar system and recognizes the process that allowed the transformation to Atoms into cells.
Performance indicators
-EXPLAIN THE BIG BANG THEORY AND OTHERS
-COMPARES THE TENETS OF THE GEOCENTRIC AND HELIOCENTER THEORIES THAT EXPLAIN THE UNIVERSE ORGANIZATION
-IDENTIFY THE CHARACTERISTICS OF THE SOLAR SYSTEM
-EXPLAIN THE THEORIES ABOUT OF THE ORIGIN OF THE LIFE IN THE EARTH
-EXPLAIN THE FUNCTION OF EACH CELL ORGANELLE
-COMPARE VEGETAL AND ANIMAL CELLS
-APPROPRIATES OF THE SCIENTIFIC METHODOLY FOR WORK IN THE LABORATORY ROOM
-ORDERLY RECORDS OF LABORATORY RESULTS
-DELIVERY TIME HOMEWORK AND ACTIVITIES
TOPICS
FROM THE UNIVERSE TO THE CELL
1The universe and the earth
-Origin of the universe [Big bang; and others theories]
-Theories about the organization of the solar system.
-The solar system
2.The cell and the origin of the life
-Theories on the origin of the life
-Cells theory
-Cell structure
-Kinds of the cells
Class:1
Date: Wednesday February 10 2010
Item: Science curriculum
SCIENCE 6 GRADE
Achievement:
Understands and explain the differents theories about the origin of the universe, and the solar system and recognizes the process that allowed the transformation to Atoms into cells.
Performance indicators
-EXPLAIN THE BIG BANG THEORY AND OTHERS
-COMPARES THE TENETS OF THE GEOCENTRIC AND HELIOCENTER THEORIES THAT EXPLAIN THE UNIVERSE ORGANIZATION
-IDENTIFY THE CHARACTERISTICS OF THE SOLAR SYSTEM
-EXPLAIN THE THEORIES ABOUT OF THE ORIGIN OF THE LIFE IN THE EARTH
-EXPLAIN THE FUNCTION OF EACH CELL ORGANELLE
-COMPARE VEGETAL AND ANIMAL CELLS
-APPROPRIATES OF THE SCIENTIFIC METHODOLY FOR WORK IN THE LABORATORY ROOM
-ORDERLY RECORDS OF LABORATORY RESULTS
-DELIVERY TIME HOMEWORK AND ACTIVITIES
TOPICS
FROM THE UNIVERSE TO THE CELL
1The universe and the earth
-Origin of the universe [Big bang; and others theories]
-Theories about the organization of the solar system.
-The solar system
2.The cell and the origin of the life
-Theories on the origin of the life
-Cells theory
-Cell structure
-Kinds of the cells
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