Wednesday, October 29, 2008
Earth's Atmosphere
There are many ways the earths atmosphere helps the planets survival differing from planets with no atmosphere. Earths atmosphere acts like a shield when a meteor is aimed toward earths surface. The atmosphere helps it because when the meteor comes in contact with the earths atmosphere the friction against that meteor causes the meteor to overheat and burst into flames, causing the meteor to disintegrate. Unlike other planets or moons that don't have an atmosphere, any meteor aimed at that planet or moon will come in contact with the surface. From the cause of the impact the meteor becomes a meteoroid. In conclusion, those are the differences and benefits that earth has that other planets don't.
Tuesday, October 14, 2008
Wednesday, October 1, 2008
Science Exploration Summaries
THE SCIENCE OF ROCKETS
Since the 1950's NASA had been using atlas rockets in order to launch probes into space. Recent models of these rockets are approximately 58 meters high (174 feet). They are made of 3 Stages; Atlas (1ST stage), Centaur (2ND stage), and Payload (3RD stage). Atlas, uses both liquid fuel engines and solid fuel engines to launch the payload stage into space. Centaur, uses the liquid fuel engines to move into orbit. Payload, is the satellite or probe carried by the rocket.
THE SPACE PROGRAM
(History of NASA)
NASA (National Aeronautics and Space Administration) begun in 1958. The purpose of this program was to explore space. That meant that humans must fly into space. So NASA began Project Mercury. So they sent humans into space to find out if humans could survive. After Project Mercury was found successful they came up with Project Gemini. They learned about living and working in space. In 1969, was Project Apollo, putting men on the moon. Afterwards, became Shuttle Programs.
(Apollo 13)
Launched on April 11, 1970, Apollo 13 seemed like a smooth flight. As the mission progressed the mission became dangerous and life threatening. One of the oxygen tanks had blown up. As all Apollo Projects, Apollo had a three-passenger Command Module (CM) and a two-passenger Lunar Module (LM). The CM's supply of light, electricity, and water was lost. Mission Control on Earth used the LM to pilot the CM around the moon and back into Earth, landing in the Pacific Ocean. All astronauts lived, losing 15kg of dehydration.
(Going Back to the Moon)
Since the Apollo mission there have been 3 spacecrafts that have visited the moon (after 1972), and all participants have survived. In 1990 and 1992 on its way to Jupiter, the Galileo probe to photographs of the lunar North pole. These photos gave more information to earth about the surface of the moon.
EXPLORING SPACE TODAY
The ISS (International Space Station) created a robot called a "Personal Satellite Assistant." Powered by solar cells, this robot has sensors that can monitor pressure, temperature, and air quality. This feature can help astronauts know whether they have any problems with the space station environment. This assistant has a videophone for communication no matter where they are in the station. The videophone is also linked to Mission Control on Earth.
USING SPACE SCIENCE ON EARTH
Less that 1% in the nations budget is spent on the Space Program. People believe that they should not invest in the space program. They believe the money wold be more useful elsewhere. NASA posted information on its website that proves to the people how much we know today from space research. The exploration of space is known as an inspiration to people to explore the unknown and push the boundaries.
Since the 1950's NASA had been using atlas rockets in order to launch probes into space. Recent models of these rockets are approximately 58 meters high (174 feet). They are made of 3 Stages; Atlas (1ST stage), Centaur (2ND stage), and Payload (3RD stage). Atlas, uses both liquid fuel engines and solid fuel engines to launch the payload stage into space. Centaur, uses the liquid fuel engines to move into orbit. Payload, is the satellite or probe carried by the rocket.
THE SPACE PROGRAM
(History of NASA)
NASA (National Aeronautics and Space Administration) begun in 1958. The purpose of this program was to explore space. That meant that humans must fly into space. So NASA began Project Mercury. So they sent humans into space to find out if humans could survive. After Project Mercury was found successful they came up with Project Gemini. They learned about living and working in space. In 1969, was Project Apollo, putting men on the moon. Afterwards, became Shuttle Programs.
(Apollo 13)
Launched on April 11, 1970, Apollo 13 seemed like a smooth flight. As the mission progressed the mission became dangerous and life threatening. One of the oxygen tanks had blown up. As all Apollo Projects, Apollo had a three-passenger Command Module (CM) and a two-passenger Lunar Module (LM). The CM's supply of light, electricity, and water was lost. Mission Control on Earth used the LM to pilot the CM around the moon and back into Earth, landing in the Pacific Ocean. All astronauts lived, losing 15kg of dehydration.
(Going Back to the Moon)
Since the Apollo mission there have been 3 spacecrafts that have visited the moon (after 1972), and all participants have survived. In 1990 and 1992 on its way to Jupiter, the Galileo probe to photographs of the lunar North pole. These photos gave more information to earth about the surface of the moon.
EXPLORING SPACE TODAY
The ISS (International Space Station) created a robot called a "Personal Satellite Assistant." Powered by solar cells, this robot has sensors that can monitor pressure, temperature, and air quality. This feature can help astronauts know whether they have any problems with the space station environment. This assistant has a videophone for communication no matter where they are in the station. The videophone is also linked to Mission Control on Earth.
USING SPACE SCIENCE ON EARTH
Less that 1% in the nations budget is spent on the Space Program. People believe that they should not invest in the space program. They believe the money wold be more useful elsewhere. NASA posted information on its website that proves to the people how much we know today from space research. The exploration of space is known as an inspiration to people to explore the unknown and push the boundaries.
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