Friday, 22 April 2011
OL#5:Video on Maglev Train
I like this video because it gives a lot of information. Sometimes, it shows some pictures which uses animation. It is really colourful and interesting. Usually, the parts of the video that uses animation is about how the maglev train works. The person who is talking did not talk that fast. So, I can pick up information more thoroughly.
OL#5:Maglev Train
What is the full name of Maglev?What is the meaning?Maglev is the short form of magnetic levitation. It means that these trains will float over a guideway using the basic principles of magnets to replace the old steel wheel and track trains.
The simple idea behind a maglev train rail system
Electromagnets are magnets that attract metal objects. But, what makes it different from the other magnets is that the magnetic pull is temporary. Connecting the ends of a copper wire to the positive and negative ends of an AA, C or D-cell battery creates a small magnetic field. If either of the end of the wire is disconnected from the battery, the magnetic field is taken away. This magnetic field created is the simple idea behind a maglev train rail system.
The components to the system(above)
>They are a large electrical power source
>metal coils lining a guideway or track
> large guidance magnets attached to the underside of the train.
Engine of Maglev Trains
The type of engine of Maglev trains are not the ones used to pull typical train cars along steel tracks. The magnetic field created by the electrified coils in the guideway walls and the track to propel the train instead of using fossil fuels.
The differences between Maglev Trains and conventional trains
Maglev train are relatively quiet in comparison to conventional trains. They also use less energy than other types of transportation. Maglev trains do not pollute the air because instead of using fossil fuels, they use magnetic fields to levitate and propel them forward. These trains are much faster. This is because that the trains float over the track. Maglev Trains require less maintenance as they float over track.
Some of the countries that are using Maglev Trains(and some have their speed)
>Birmingham, United Kingdom 1984–1995
The world's first commercial automated maglev system was a low-speed maglev shuttle that ran from the airport terminal of Birmingham International Airport to the nearby Birmingham International railway station between 1984–1995.
>Japan 1985-1989
-One is HSST by Japan Airlines and the other, which is more well-known, is JR-Maglev by Japan Railways Group. The development of the latter started in 1969, and Miyazaki test track had regularly hit 517 km/h by 1979
-(1985) In Tsukuba, the HSST-03 (Linimo) wins popularity in spite of being 30 km/h slower.
-(1987)In Okazaki, the JR-Maglev took a test ride at the Okazaki exhibition.
-(1988) In Saitama, the HSST-04-1 was revealed at the Saitama exhibition performed in Kumagaya. Its fastest recorded speed was 30 km/h.
-(1989)In Yokohama, the HSST-05 acquires a business driver's license at Yokohama exhibition and carries out general test ride driving. Maximum speed 42 km/h.
>Hamburg, Germany 1979
Transrapid 05 was the first maglev train with longstator propulsion licensed for passenger transportation. In 1979, a 908 m track was opened in Hamburg for the first International Transportation Exhibition (IVA 79). There was so much interest that operations had to be extended three months after the exhibition finished, having carried more than 50,000 passengers. It was reassembled in Kassel in 1980.
>Vancouver, Canada, and Hamburg, Germany 1986-1988
-(1986. Vancouver, Canada), The JR-Maglev was exhibited at Expo 86. Guests could ride the train along a short section of track at the fairgrounds.
(1988. Hamburg, Germany) The TR-07 in international traffic exhibition (IVA88) performed Hamburg.
Fastest Maglev Train in the world
-The fastest Maglev Train is in Shanghai, China.
Which is faster?F1 Racing Car or Maglev Train?
-Maglev train.
Should Maglev Train be introduced to Singapore?Why or why not?
-I think that we should not introduce Maglev Train to Singapore as Singapore has a lot of trains. It is also because that to build it, it cost a lot of money.
__________________________________________
Informations:
-http://en.wikipedia.org/wiki/Maglev_(transport)-http://ninpope-physics.comuv.com/maglev/procon.php-http://science.howstuffworks.com/transport/engines-equipment/maglev-train.htm-http://www.china.org.cn/china/2010-04/09/content_19780592.htm
The simple idea behind a maglev train rail system
Electromagnets are magnets that attract metal objects. But, what makes it different from the other magnets is that the magnetic pull is temporary. Connecting the ends of a copper wire to the positive and negative ends of an AA, C or D-cell battery creates a small magnetic field. If either of the end of the wire is disconnected from the battery, the magnetic field is taken away. This magnetic field created is the simple idea behind a maglev train rail system.
The components to the system(above)
>They are a large electrical power source
>metal coils lining a guideway or track
> large guidance magnets attached to the underside of the train.
Engine of Maglev Trains
The type of engine of Maglev trains are not the ones used to pull typical train cars along steel tracks. The magnetic field created by the electrified coils in the guideway walls and the track to propel the train instead of using fossil fuels.
The differences between Maglev Trains and conventional trains
Maglev train are relatively quiet in comparison to conventional trains. They also use less energy than other types of transportation. Maglev trains do not pollute the air because instead of using fossil fuels, they use magnetic fields to levitate and propel them forward. These trains are much faster. This is because that the trains float over the track. Maglev Trains require less maintenance as they float over track.
Some of the countries that are using Maglev Trains(and some have their speed)
>Birmingham, United Kingdom 1984–1995
The world's first commercial automated maglev system was a low-speed maglev shuttle that ran from the airport terminal of Birmingham International Airport to the nearby Birmingham International railway station between 1984–1995.
>Japan 1985-1989
-One is HSST by Japan Airlines and the other, which is more well-known, is JR-Maglev by Japan Railways Group. The development of the latter started in 1969, and Miyazaki test track had regularly hit 517 km/h by 1979
-(1985) In Tsukuba, the HSST-03 (Linimo) wins popularity in spite of being 30 km/h slower.
-(1987)In Okazaki, the JR-Maglev took a test ride at the Okazaki exhibition.
-(1988) In Saitama, the HSST-04-1 was revealed at the Saitama exhibition performed in Kumagaya. Its fastest recorded speed was 30 km/h.
-(1989)In Yokohama, the HSST-05 acquires a business driver's license at Yokohama exhibition and carries out general test ride driving. Maximum speed 42 km/h.
>Hamburg, Germany 1979
Transrapid 05 was the first maglev train with longstator propulsion licensed for passenger transportation. In 1979, a 908 m track was opened in Hamburg for the first International Transportation Exhibition (IVA 79). There was so much interest that operations had to be extended three months after the exhibition finished, having carried more than 50,000 passengers. It was reassembled in Kassel in 1980.
>Vancouver, Canada, and Hamburg, Germany 1986-1988
-(1986. Vancouver, Canada), The JR-Maglev was exhibited at Expo 86. Guests could ride the train along a short section of track at the fairgrounds.
(1988. Hamburg, Germany) The TR-07 in international traffic exhibition (IVA88) performed Hamburg.
Fastest Maglev Train in the world
-The fastest Maglev Train is in Shanghai, China.
Which is faster?F1 Racing Car or Maglev Train?
-Maglev train.
Should Maglev Train be introduced to Singapore?Why or why not?
-I think that we should not introduce Maglev Train to Singapore as Singapore has a lot of trains. It is also because that to build it, it cost a lot of money.
__________________________________________
Informations:
-http://en.wikipedia.org/wiki/Maglev_(transport)-http://ninpope-physics.comuv.com/maglev/procon.php-http://science.howstuffworks.com/transport/engines-equipment/maglev-train.htm-http://www.china.org.cn/china/2010-04/09/content_19780592.htm
Saturday, 5 March 2011
Macaws(This are the some of the different types of macaw)
Online Assignment 4(Salmon)
Salmon can be found in freshwater streams and oceans. An alevin, which is the young of a salmon, commonly feeds on caddisflies, mayflies and stoneflies. Examples of the preys of an adult salmon are herrings, crustaceans, sand launces and mackerels. The scale of a salmon contains rings that tells the age of the salmon. An alevin hatches at freshwater streams. When it has grown into an adult, it will enter the ocean. When an adult wants to spawn eggs, it will return to the freshwater streams again. The life span of a salmon is about 8 years. Some of the freshwater predators of a salmon are kingfishers, otters and ospreys. Some of the saltwater predators are gulls, cods, seals and sharks. A female salmon needs to spawn about 3000 - 15000 eggs because a lot of organisms like to eat salmon's eggs. Usually, only few eggs will hatch into an alevin. After the female salmon spawn its eggs, it will abandon its eggs. That is why it is easier for its predators to eat them.
________________________________________________
*Informations from:-
> http://www.k12.nf.ca/she/pgreen/Page/index.html
> http://en.wikipedia.org/wiki/Spawn_(biology)
> http://en.wikipedia.org/wiki/Atlantic_salmon#Life_stages
> http://library.thinkquest.org/C0124402/data/html/2/2reproduction.htm
________________________________________________
*Informations from:-
> http://www.k12.nf.ca/she/pgreen/Page/index.html
> http://en.wikipedia.org/wiki/Spawn_(biology)
> http://en.wikipedia.org/wiki/Atlantic_salmon#Life_stages
> http://library.thinkquest.org/C0124402/data/html/2/2reproduction.htm
Friday, 25 February 2011
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