Wednesday, March 18, 2009
speed of light and chocolate
I measured a distance between the nodes was 6 cm. The average spacing was very close together. There was a lot of waves passing through the chocolate which caused it to melt fast. I was surprised by how fast the chocolate and that there is a lot of microwaves that go through the food in the mircowave. A microwave is a light because is has waves and acts like light would.
Religion Vs. Science
The story of the bible and the big bang theory go well togther. So the do not contradict with each other. The basically have the same thing happening. They are alike because the big bang theory says that they universe kept expanding until it reached where it was today. In the bible God said let there be light and there was light. Then God said let there be sky and there was. So the earth kept expanding just like the universe kept expanding. So the big bang theory and the story of God creating earth are a like and pretty similar to each other.
They are alike because they both deal with something expanding. Scientist say that the universe kept expanding until it had enough matter to make up what it is today. The earth kept expanding by God keep adding things to it like water,sky, light, and land to it made what today is earth.
They are alike because they both deal with something expanding. Scientist say that the universe kept expanding until it had enough matter to make up what it is today. The earth kept expanding by God keep adding things to it like water,sky, light, and land to it made what today is earth.
Hubble Deep Field
There are billions of galaxies and we have discoved many of them. We use the Hubble Space Telescopes to find them. Some of the clearest views we have found are in the Hubble Deep Field(HDF). There is one southward and another northward.
The Hubble Deep Field north is one of the deepest, sharpest, multi-colored images in the universe. They found this by pointing the Hubble Space Telescope towards an emty spot in the sky, by the big dipper, for 10 days. it was found in 1995. They found thousands of new galaxies when it was discovered.
When they turned the telescope south they found another stunning sight. They pointed it toward the south constellation Tucana. Again they looked for 10 days, but this time it was in 1998.
There are 3 main galaxy types. They are ellipticals, spirals, and irregulars. Ellipticals are round or ocal shaped and are the most common galaxies found nearby. Spirals have pinwheel-shaped arms. The irregular galaxies are the ones that dont fit in the other galaxy catagories. They are the least common galaxies nearby.
The Hubble Deep Field north is one of the deepest, sharpest, multi-colored images in the universe. They found this by pointing the Hubble Space Telescope towards an emty spot in the sky, by the big dipper, for 10 days. it was found in 1995. They found thousands of new galaxies when it was discovered.
When they turned the telescope south they found another stunning sight. They pointed it toward the south constellation Tucana. Again they looked for 10 days, but this time it was in 1998.
There are 3 main galaxy types. They are ellipticals, spirals, and irregulars. Ellipticals are round or ocal shaped and are the most common galaxies found nearby. Spirals have pinwheel-shaped arms. The irregular galaxies are the ones that dont fit in the other galaxy catagories. They are the least common galaxies nearby.
Tuesday, March 17, 2009
Stellar Evolution
Missing Star
Written by: Bryan Hansen, Brett Yonkvic, Pat Hartbeck
It all starts as a protostar, just like a human starts at the fetus stage. As gravity pulls on the atoms, there is a collision between the hydrogen atoms. This collision creates another essential force, pressure. Soon the blob gets bigger and bigger creating the photostar. The protostar will then turn into a star. The star must keep a balance between gravity and gas pressure. This star will keep contracting to get back the heat and energy it has lost and to stay alive. As this star grows older it gets bigger. The hotter the star the bigger it is. This star will soon become ill when it loses its balance between gravity and gas pressure. When the star died it was at Red Giant stage. In human terms it is a middle aged adult. When it’s a red star it means fusion is happening so fast that the gas are being pulled off the core and makes a red color. The star is large, but it has lost some of its atoms making it less as big.
So we all know the star died from a severe illness and we are ok with that. But lets say it didn’t die. The star would have had one more stage and would have been a white dwarf. In human terms it would have been old aged and soon to be dead. White dwarfs are tiny stars with big densities. A spoon full of white dwarf could weigh tons.
So that’s the story of the poor star. It had a long fun life. The only way it could have been better is if it wouldn’t have had to die before he saw his grandchildren. But looking back it was pretty good. Hey at least he got to be red! Who doesn’t want to be red!?
Written by: Bryan Hansen, Brett Yonkvic, Pat Hartbeck
It all starts as a protostar, just like a human starts at the fetus stage. As gravity pulls on the atoms, there is a collision between the hydrogen atoms. This collision creates another essential force, pressure. Soon the blob gets bigger and bigger creating the photostar. The protostar will then turn into a star. The star must keep a balance between gravity and gas pressure. This star will keep contracting to get back the heat and energy it has lost and to stay alive. As this star grows older it gets bigger. The hotter the star the bigger it is. This star will soon become ill when it loses its balance between gravity and gas pressure. When the star died it was at Red Giant stage. In human terms it is a middle aged adult. When it’s a red star it means fusion is happening so fast that the gas are being pulled off the core and makes a red color. The star is large, but it has lost some of its atoms making it less as big.
So we all know the star died from a severe illness and we are ok with that. But lets say it didn’t die. The star would have had one more stage and would have been a white dwarf. In human terms it would have been old aged and soon to be dead. White dwarfs are tiny stars with big densities. A spoon full of white dwarf could weigh tons.
So that’s the story of the poor star. It had a long fun life. The only way it could have been better is if it wouldn’t have had to die before he saw his grandchildren. But looking back it was pretty good. Hey at least he got to be red! Who doesn’t want to be red!?
Friday, March 13, 2009
Aliens
For how big the universe is I find it hard to believe that we are the only intelligent life out there but if there was, I think we would have found out by now. so no, I don't think there are aliens. Plus I think the drake equation is a bunch of crap and that dude just made it up.
Friday, February 27, 2009
Comets
A comet is a small, icy celestial body that orbits around the sun. It is made up of a nucleus, a gaseous coma and a long tail. The tail develops when the comet is near the Sun. Its long ion tail of always points away from the sun, because of the force of the solar wind. The tail can be up to 250 million km long, and is most of what we see. Comets are only visible when they're near the sun in their highly eccentric orbits.
There are five parts to a comet
1. Nucleus: The nucleus is the frozen center of a comet's head. It is composed of ice, gas, and dust. The nucleus contains most of the comet's mass but is very small
2. Coma: The coma is the roughly spherical blob of gas that surrounds the nucleus of a comet; it is about a million km across. The coma is comprised of water vapor, carbon dioxide gas, ammonia, dust, and neutral gases that have sublimed from the solid nucleus. The coma and the nucleus form the head of a comet.
3. Ion Tail: A tail of charged gases always faces away from the sun because the solar wind pushes it away. When the comet is approaching the Sun, the ion tail trails the comet: when the comet is leaving of the Sun, the ion tail leads. The tail fades as the comet moves far from the Sun. The ion tail can be well over 100 million km long.
4. Dust Tail: The dust tail is a long, wide tailcomposed of microscopic dust particles that are buffeted by photons emitted from the Sun; this tail curves slightly due to the comet's motion. The tail fades as the comet moves far from the Sun.
5. Hydrogen Envelope: Hydrogen gas surrounds the coma of the comet and trails along for millions of miles. The hydrogen envelope is about 10 million km across at the nucleus of the comet and about 100 million km long. It is bigger when the comet is near the Sun.
Comets orbit the Sun in highly elliptical orbits. Their velocity increases greatly when they are near the Sun and slows down at the far reaches of the orbit. Some comets crash into the Sun or get so close that they burn up; these comets are called sungrazers. The solar wind pushes the tail away from the Sun.
There are five parts to a comet
1. Nucleus: The nucleus is the frozen center of a comet's head. It is composed of ice, gas, and dust. The nucleus contains most of the comet's mass but is very small
2. Coma: The coma is the roughly spherical blob of gas that surrounds the nucleus of a comet; it is about a million km across. The coma is comprised of water vapor, carbon dioxide gas, ammonia, dust, and neutral gases that have sublimed from the solid nucleus. The coma and the nucleus form the head of a comet.
3. Ion Tail: A tail of charged gases always faces away from the sun because the solar wind pushes it away. When the comet is approaching the Sun, the ion tail trails the comet: when the comet is leaving of the Sun, the ion tail leads. The tail fades as the comet moves far from the Sun. The ion tail can be well over 100 million km long.
4. Dust Tail: The dust tail is a long, wide tailcomposed of microscopic dust particles that are buffeted by photons emitted from the Sun; this tail curves slightly due to the comet's motion. The tail fades as the comet moves far from the Sun.
5. Hydrogen Envelope: Hydrogen gas surrounds the coma of the comet and trails along for millions of miles. The hydrogen envelope is about 10 million km across at the nucleus of the comet and about 100 million km long. It is bigger when the comet is near the Sun.
Comets orbit the Sun in highly elliptical orbits. Their velocity increases greatly when they are near the Sun and slows down at the far reaches of the orbit. Some comets crash into the Sun or get so close that they burn up; these comets are called sungrazers. The solar wind pushes the tail away from the Sun.
Sunspots
A) Dark, usually irregularly shaped spots on the sun's surface that are actually solar magnetic storms
B) They don't change themselves..there are spikes in the 11 year period.
C) It shows how occurence of sunspots shifts from higher latitudes towards the equator.
D) The cycle of activity in the photosphere that is a 22 year cycle.
E) information showed that during low sunspot activity, earth had long dragging brutal winters, so it's important to the earth's climate.
F) 2011-2012
G) telescopes
H) Sun solar projection telescopes
B) They don't change themselves..there are spikes in the 11 year period.
C) It shows how occurence of sunspots shifts from higher latitudes towards the equator.
D) The cycle of activity in the photosphere that is a 22 year cycle.
E) information showed that during low sunspot activity, earth had long dragging brutal winters, so it's important to the earth's climate.
F) 2011-2012
G) telescopes
H) Sun solar projection telescopes
Subscribe to:
Comments (Atom)
