Cold Front:When a fast moving mass of cold air meets a slow moving warm air mass, the cold air will remain closer to the ground and lower the temperature of the warmer air. Water Vapor in the air can form cumulonimbus clouds, resulting in abrupt weather changes like thunderstorms or heavy rain or snow.
Warm Front:When a fast moving mass of warm air and a slow moving mass of warm air meet, the warm air will rise above th cool air and likely push it slightly.It is likely accompanied by rain or showers wherever the warm or cold air meet. It may be rainy or foggy for several days.
Stationary Front:Sometimes when warm and cool air masses meet, neither can prevail over the other. Where they meet, rain, snow fog or clouds often form.It can remain this way for several days.
Occluded Front:When a warm air mass is trapped between two cooler air masses, the cool air masses push the warm air mass upward, then meeting and mixing in the middle. The area is cooler near the surface and it may become cloudy, rainy or snowy.
Which type of front occurred this week to bring the cold weather and then snow?: Though either a cold front, stationary front or an occluded front could be causing this weather, I am guessing it was caused by a cold front because the area seemed to remain very cold for several days.
Monday, December 8, 2008
Thursday, November 20, 2008
Lima,Peru 10 S, Cape Town, South Africa 35S
Trip Itinerary and approximate latitude: Lima,Peru 10 S, Cape Town, South Africa 35S
Travel time:15 days
Direction traveling:S,NE
Were you successful?yes
How many attempts?4
How were you successful? I stayed as close as I could to the South American coast and when I got to open sea, I went strait for Africa.
What winds did you take advantage of or compete with during your travel? I took advantage of the prevailing westerlies, which carried me East
Travel time:15 days
Direction traveling:S,NE
Were you successful?yes
How many attempts?4
How were you successful? I stayed as close as I could to the South American coast and when I got to open sea, I went strait for Africa.
What winds did you take advantage of or compete with during your travel? I took advantage of the prevailing westerlies, which carried me East
Hanava,Cuba 25 N, London, England 50 N
Trip Itinerary and approximate latitude: Hanava,Cuba 25 N, London, England 50 N
Travel time: 9 days
Direction traveling: NE
Were you successful? yes
How many attempts? 3
How were you successful? I stayed slightly to the south so I wouldn't accidentally land somewhere else.
What winds did you take advantage of or compete with during your travel? I used the Prevailing Westerlies to get to my destination.
Travel time: 9 days
Direction traveling: NE
Were you successful? yes
How many attempts? 3
How were you successful? I stayed slightly to the south so I wouldn't accidentally land somewhere else.
What winds did you take advantage of or compete with during your travel? I used the Prevailing Westerlies to get to my destination.
San Fransico, 45 N, to Sydney Australia, 38 S
Trip Itinerary and approximate latitude: San Fransico, 45 N, to Sydney Australia, 38 S
Travel time: 17 days
Direction traveling: SW
Were you successful? Yes
How many attempts? 3
How were you successful? I followed the winds
What winds did you take advantage of or compete with during your travels? I took advantage of both of the trade winds. The northern trade winds took me directly to my destination while the southern ones pushed me North.
Travel time: 17 days
Direction traveling: SW
Were you successful? Yes
How many attempts? 3
How were you successful? I followed the winds
What winds did you take advantage of or compete with during your travels? I took advantage of both of the trade winds. The northern trade winds took me directly to my destination while the southern ones pushed me North.
Tuesday, November 18, 2008
Thursday, November 6, 2008
Wednesday, October 29, 2008
As you probably know, Earths atmosphere acts as as a blanket of gases that surrounds it. The atmosphere makes Earth very different from the moon or a planet that has no atmosphere such as Mars. If you have ever gazed up at the moon, one of the first things that you probably noticed was the massive craters covering it's surface. These craters mostly came to be because the moon has no atmosphere. When meteoroids move towards Earth, the atmosphere will usually cause it to burn up or explode. This way, It is less likely to cause major damage on Earths surface. Planets that do not have atmospheres cannot stop such damage from occurring. Another reason that Earth is not covered in craters is the factor of weather which is made possible by the atmosphere. When Lance Armstrong first set foot on the moon, he left a footprint there. Because the Moon has no atmosphere and therefore no weather, that footprint will remain on it's surface for a long time. In the rare occasion that a large crater is left on Earth, the weather will wash away. The atmosphere also provides us with oxygen which animals need to live so life as we know it on a planet with no atmosphere is simply not possible.
Monday, October 27, 2008
Wednesday, October 8, 2008
Tuesday, October 7, 2008
Space Exploration Summaries
The Science of Rockets:
Recent versions of the Atlas rockets contain three stages-The Atlas(uses solid and liquid fuel engines to launch the payload into space),the centaur(maneuvers ship into propor orbit)and the payload which is the satellite or spacecraft carried by the rocket.
The Space Program:
NASA was created in 1958, it's mission being human space flight, so it embarked on project Mercury to see if humans could survive in space and when that was a success, they started project Gemini where two astronauts manned a spacecraft in space. In 1970, NASA launched Apollo 13,which was a complete disaster.Since then, we have sent several un-manned spacecrafts to the moon and Jupiter.
Exploring Space Today:
ISS has a plan for a small robot to float side by astronauts in space that will monitor temperature, pressure, air quality and make sure that there are no problems in the environment.It also will have a video phone so astronauts can communicate with each other.
Using Space Science on Earth:
NASA says that less than 1% of the U.S. budget is spent on the space program and for every dollar invested, the economy receives $7 in job creation, economic growth and taxes.
Recent versions of the Atlas rockets contain three stages-The Atlas(uses solid and liquid fuel engines to launch the payload into space),the centaur(maneuvers ship into propor orbit)and the payload which is the satellite or spacecraft carried by the rocket.
The Space Program:
NASA was created in 1958, it's mission being human space flight, so it embarked on project Mercury to see if humans could survive in space and when that was a success, they started project Gemini where two astronauts manned a spacecraft in space. In 1970, NASA launched Apollo 13,which was a complete disaster.Since then, we have sent several un-manned spacecrafts to the moon and Jupiter.
Exploring Space Today:
ISS has a plan for a small robot to float side by astronauts in space that will monitor temperature, pressure, air quality and make sure that there are no problems in the environment.It also will have a video phone so astronauts can communicate with each other.
Using Space Science on Earth:
NASA says that less than 1% of the U.S. budget is spent on the space program and for every dollar invested, the economy receives $7 in job creation, economic growth and taxes.
Monday, September 29, 2008
Monday, September 22, 2008
Seasons
Each year, we experience four seasons-Winter, Autumn, Spring and Summer. One may wonder what causes these seasons and the weather they bring with them. The answer lies with the Earth's rotation on it's axis. When the Northern Hemisphere is tilted towards the Sun, it will receive more direct Sunlight and more hours of daylight, causing the amount of solar energy to rise. When it is tilted away from the Sun, the suns rays will be more spread out, resulting in less solar energy and a massive drop in temperature.
Tuesday, September 16, 2008
Everyone knows the feeling of having a changed perspective. You may have an inaccurate first impression of them when you meet. Perhaps something that you have found shocking, disgusting or amazing has become less extreme upon examination. Perspective can change whenever you look at something at a different angle, distance, or any way you have not done before. I once bought an "ancient" Egyptian cat statue online. When it finally arrived at my house I examined it and it appeared to be fake.
The book Zoom does an incredible job explaining the ways perspective can change the way things appear. It proves that looking at something from a different angle or distance can drastically change what you see. The inferences I made were always limited to just what I saw. My mind was not open to the possibility that there, perhaps may have been something larger. Every time I made an inference, the scene began to grow into something completely different.
In the field of science, perspective is a very important aspect. While some scientists are required to look at a limited space such as those who study small organisms and The tissue and DNA of animals, others must use prospective in their world such as those who study ecosystems and astrology. Since the universe is so incredibly large and perhaps infinite, No one can see the whole thing and while they may be examining just one thing, they must keep in mind its surroundings.
The book Zoom does an incredible job explaining the ways perspective can change the way things appear. It proves that looking at something from a different angle or distance can drastically change what you see. The inferences I made were always limited to just what I saw. My mind was not open to the possibility that there, perhaps may have been something larger. Every time I made an inference, the scene began to grow into something completely different.
In the field of science, perspective is a very important aspect. While some scientists are required to look at a limited space such as those who study small organisms and The tissue and DNA of animals, others must use prospective in their world such as those who study ecosystems and astrology. Since the universe is so incredibly large and perhaps infinite, No one can see the whole thing and while they may be examining just one thing, they must keep in mind its surroundings.
Friday, August 29, 2008
Enigma Box
A successful scientist uses several skills in order to learn about the world and how it works. Observing, inferring, predicting, classifying, and making models are all necessary to draw a reasonable conclusion. Observing is using one or more of your senses to gather information. A good scientist will gather extensive information through observing. Inferring is when you attempt to explain or interpret the things you observed in the past. Predicting is using information to forecast what may happen in the future. By seeing gray clouds, you may predict that it could will rain. Scientists also use classification. Classifying is the process of grouping together items that are alike in some way. By looking at anything and comparing it with something else would be considered classifying. Lastly, scientists make model. A model is a representation of a complex object or processes. While observing the enigma box, you will use the same skills as a scientist. You will first make observations of the box and make an inference or prediction of whats inside. You could classify by comparing the box's characteristics to that of something else and even make models in your head.
The enigma box has two holes at the top, one smaller than the other. It has a black, shiny exterior and a small tube coming from the bottom. Water slowly began to drip from the tube when 275 milliliters of it were poured inside and at 500, it began to flow from the bottom.
My guess is that a cork or some type of plug or hatch plugs the bottom. A balloon or hallow, small ball is attached to a chain which is attached to the plug. When enough water fills the box, it pulls up the balloon, releasing the water.
The enigma box truly contained a tube that hung near the bottom ,twirled around at the top and through the side. When water was poured into the box, some went into the tube while the rest filled up the box. When the water in the tube went over the edge, it fell and all the water in the box flowed out.
The enigma box has two holes at the top, one smaller than the other. It has a black, shiny exterior and a small tube coming from the bottom. Water slowly began to drip from the tube when 275 milliliters of it were poured inside and at 500, it began to flow from the bottom.
My guess is that a cork or some type of plug or hatch plugs the bottom. A balloon or hallow, small ball is attached to a chain which is attached to the plug. When enough water fills the box, it pulls up the balloon, releasing the water.
The enigma box truly contained a tube that hung near the bottom ,twirled around at the top and through the side. When water was poured into the box, some went into the tube while the rest filled up the box. When the water in the tube went over the edge, it fell and all the water in the box flowed out.
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