Friday, December 18, 2009
Ways to detect extrasolar planets
Scientist can detect extra solar planets by direct evidence such as images of the planet and the planets spectrum, and by indirect evidence such as Doppler techniques and transits.
What did the universe look like before the Big Bang?
Before the big bang, i think the universe was probably a vast wasteland of nothing but large quantities of cosmic dust and other materials that would later come to serve as fuel/materials for the creation of the universe. I also think that there were forces or laws of the universe that contributed to the motion or attraction of objects in space billions of years ago.
The big bang formed because all of the matter, dust, foreign objects and elements collected into a single mass; which probably gave way to the extreme amount of weight/gravity of the huge mass; then a sudden, catastrophic explosion and sharing or splitting of matter and anti matter or nuclear reactions from atoms sent cosmic debris all over space; which later formed, cooled and created the cycles, stars, galaxies and objects that we view today.
The big bang formed because all of the matter, dust, foreign objects and elements collected into a single mass; which probably gave way to the extreme amount of weight/gravity of the huge mass; then a sudden, catastrophic explosion and sharing or splitting of matter and anti matter or nuclear reactions from atoms sent cosmic debris all over space; which later formed, cooled and created the cycles, stars, galaxies and objects that we view today.
Tuesday, December 15, 2009
My Favorite Science topic is...
My favorite topic, that we've went over this year was Astronomy; which is the study of the universe or space. Astronomy covers a lot of things in space, such as Black holes, Red giants, galaxies, constellations and theory's of how the universe formed or how it will end.
Astronomy is so interesting and cool to me because its vast size and gorgeous views. Astronmy is like watching still pictures or sometimes videos of 1080p HD pics on the best tv brand, flatscreens. It is truly a sight to admire.
Monday, November 16, 2009
5 things about/in the universe
1. The first thing I want to talk about is Saturn's moon Titan, which scientist have already sent the Cassini probe to investigate the moons surface, atmosphere, and composition. The data they received back was phenomenal and unbelievable. They discovered geographic regions very similar to earth such as streams, rivers, mountains and lakes. The surprising thing about these features is that they are not made up of water but liquid nitrogen. Titan's atmosphere also rains liquid nitrogen.
2. The Andromeda Galaxy is the closest spiral galaxy to the Milky Way, it has about 1 trillion stars in it. It is not the closest galaxy though and is apart of our galaxy cluster. It has a couple of red giants in it.
3. Binary star systems, are solar systems that have two stars that affect the planets and other celestrial body's in the solar systems. The larger star is called the primary star and the smaller of the two or more is called the companion.
4.The Asteroid belt is located between Mars and Jupiter, where the majority of our solar system's asteroids are found. There 's more than one asteroid belt in our solar system: the Kuiper belt holds some of the largest asteroids including Quaoar and Ixion being about half the size of Pluto. Many Scientist believe that the asteroid belt is a remnant of a large collision of two planets.
5. The Hubble space telescope was carried into orbit by the space shuttle Discovery. Hubble was the first space telescope ever. It was put into space to provide better, more accurate pictures and measurements. It was successful at this because of the many factors that would've presented an obstacle on Earth are not in space, such as Earth's atmosphere, space dust
2. The Andromeda Galaxy is the closest spiral galaxy to the Milky Way, it has about 1 trillion stars in it. It is not the closest galaxy though and is apart of our galaxy cluster. It has a couple of red giants in it.
3. Binary star systems, are solar systems that have two stars that affect the planets and other celestrial body's in the solar systems. The larger star is called the primary star and the smaller of the two or more is called the companion.
4.The Asteroid belt is located between Mars and Jupiter, where the majority of our solar system's asteroids are found. There 's more than one asteroid belt in our solar system: the Kuiper belt holds some of the largest asteroids including Quaoar and Ixion being about half the size of Pluto. Many Scientist believe that the asteroid belt is a remnant of a large collision of two planets.
5. The Hubble space telescope was carried into orbit by the space shuttle Discovery. Hubble was the first space telescope ever. It was put into space to provide better, more accurate pictures and measurements. It was successful at this because of the many factors that would've presented an obstacle on Earth are not in space, such as Earth's atmosphere, space dust
Friday, November 13, 2009
IR radiation
1. IR radiation means infrared radiation, which is the heat or thermal radiation from the Sun, that heats the Earth.
2. The three main greenhouse gases are Carbon dioxide, Argon and Water vapor.
3. I kind of think its both a good and a bad, but I'm going to favor bad a little more because with the increase of greenhouse gases; the temperature will also increase globally. This is bad because it causes the ice in the Arctic and Antarctic to melt at fast rates, which will endanger animal species that live in polar regions. Alot of places will receive either less snow or no snow as we're experiencing now.Greenhouse gases also destroy the ozone layer which is very important in blocking out the Sun's UV rays. Thats why i think greenhouse gases are bad.
2. The three main greenhouse gases are Carbon dioxide, Argon and Water vapor.
3. I kind of think its both a good and a bad, but I'm going to favor bad a little more because with the increase of greenhouse gases; the temperature will also increase globally. This is bad because it causes the ice in the Arctic and Antarctic to melt at fast rates, which will endanger animal species that live in polar regions. Alot of places will receive either less snow or no snow as we're experiencing now.Greenhouse gases also destroy the ozone layer which is very important in blocking out the Sun's UV rays. Thats why i think greenhouse gases are bad.
Condensation and Condensation nuclei
1. one example of condensation is dew on the grass.
The nuclei would be the grass.
2. Blowing your breath on a desk at school, would be condensation because he desk is cooler than your breath.
The desk would be the nuclei.
3. Your car being wet in the morning is an example of condensation.
The car is the nuclei.
4. The mirror, when you take a shower is an example of condensation.
The mirror is the nuclei.
5. The kitchen windows in the morning are an example of condensation.
The windows are the nuclei.
The nuclei would be the grass.
2. Blowing your breath on a desk at school, would be condensation because he desk is cooler than your breath.
The desk would be the nuclei.
3. Your car being wet in the morning is an example of condensation.
The car is the nuclei.
4. The mirror, when you take a shower is an example of condensation.
The mirror is the nuclei.
5. The kitchen windows in the morning are an example of condensation.
The windows are the nuclei.
Sunday, November 8, 2009
Monsoons
1. A Monsoon is a Seasonal wind that blow steadily from the northeast in the Northern winter and southwest in the Northern summer
2. The two main causes of monsoons are, the movement northward from winter to summer, of the huge upper level subtropical high pressure system known as the Bermuda high and the intense heating of the Mohave desert creates rising air and surface low pressure, called a thermal low.
3. Monsoons can be considered a good thing, because they bring rain to areas, that experience droughts. Monsoons can relieve areas with cool weather, that have been experiencing hot weather.
4.Monsoons are also considered bad, because they can bring droughts, floods and destroy coastal villages or communities.
5. Heavy rains from a Monsoon followed after a drought, which killed 240 people, thousands of cattle and left thousands of people homeless.
6. I personally think that depending on the situation and the lasting affects of a Monsoon, they can be either good or bad. If a Monsoon caused significant flooding or drought than it is bad. If it brings enough rain or give a region some relief from constant rain than it can be good.
2. The two main causes of monsoons are, the movement northward from winter to summer, of the huge upper level subtropical high pressure system known as the Bermuda high and the intense heating of the Mohave desert creates rising air and surface low pressure, called a thermal low.
3. Monsoons can be considered a good thing, because they bring rain to areas, that experience droughts. Monsoons can relieve areas with cool weather, that have been experiencing hot weather.
4.Monsoons are also considered bad, because they can bring droughts, floods and destroy coastal villages or communities.
5. Heavy rains from a Monsoon followed after a drought, which killed 240 people, thousands of cattle and left thousands of people homeless.
6. I personally think that depending on the situation and the lasting affects of a Monsoon, they can be either good or bad. If a Monsoon caused significant flooding or drought than it is bad. If it brings enough rain or give a region some relief from constant rain than it can be good.
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