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Message Area
Sci / Health / Environment

Enviro. May 04 '05 Nuclear Fusion

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#1 of 2

     Posted 5/5/05 2:37 AM   
Sue_N
 
From  Sue_N  Posts 3452  Last 12:11 AM
To  All      [Msg # 195876.1 ]    

Do you think that nuclear fusion is a viable and worthwhile energy source for the future?

Nuclear Fusion

Nuclear Fusion is the source of the sun's energy, and of hydrogen bombs. Light atoms are combined together to create heavier ones (for example, hydrogen to helium). A gas containing isotopes of hydrogen (deuterium and tritium) is heated to 100 million degrees centigrade and confined for at least one second, probably magnetically. There have been claims to have achieved fusion in other ways, including cold fusion. In spite of 50 years research, however, there have been no commercial nuclear fusion power plants.

The next experimental reactor that will be built is called ITER. ITER has meant the "International Tokamak Experimental Reactor" (where tokamak is a Russian word for a torus-shaped magnetic chamber) and the "International Thermonuclear Experimental Reactor", but nowadays the preferred interpretation is "The way" in Latin.

Nuclear fusion is said to involve no risk of chain reactions or the kind of accidents that would lead even to evacuation of the plant. None of the waste materials have long radioactive half lives, so they wouldn't pose the long term storage problem of nuclear fission. There are also no polluting emissions.

The raw materials are plentiful. Deuterium comes from any kind of water. Tritium can be manufactured from Lithium inside the reactor. Lithium comes from the Earth's crust, and is plentiful.

Recent news stories involving nuclear fusion include:

Japan may end bid for nuclear fusion project - paper

Japan may abandon its quest to host the ITER project aiming to build the world's first nuclear fusion reactor. Japan still hopes to help construct the reactor, which would probably be built in France. Research into nuclear fusion has been going on for 50 years, but no commercially viable reactor has resulted. Nuclear is claimed to be an environmentally friendly form of energy using sea water. It fuses atoms rather than splitting them as in nuclear fission. Would you prefer it to be built in Japan, in France, or not at all?

Please see the following message for the remaining stories.

Sue [sysop in NewsForum, World Issues, All Animals forums]
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#2 of 2

     Posted 5/5/05 2:39 AM   
Sue_N
 
From  Sue_N  Posts 3452  Last 12:11 AM
To  All      [Msg # 195876.2 Message 195876.2 replying to 195876.1 195876.1 ]    

Other Stories

Army to Destroy Deadly Nerve Agent

An Army contractor is to start neutralizing a stockpile of 250,000 gallons of the nerve agent VX at the Newport Chemical Depot, Ind. on Thursday. A tiny droplet can kill a person. The neutralization process will create 4 million gallons of hydrolysate, which is similar to liquid drain cleaner. The hydrolysate will then need to be transported to New Jersey, treated and disposed of in the Delaware River. Does that sound safe to you?

Park Closes Lake to Protect Rare Mollusk

A lake in Glacier national Park, Mont. has been closed to swimmers and waders to protect the Rocky Mountain capshell limpet. The limpet is found in only 17 places and is easily crushed underfoot. Fishing will be allowed to continue - the brook trout eat limpets. Do you think that's a good enough reason to ban swimming?

South Korean salamander find surprises scientists

The lungless salamander, whose relatives are normally found in North and South America, has been found in South Korea, much to the surprise of scientists. It was found by an American teaching high school classes in South Korea.

Three Snails Thought Extinct Discovered

Three kinds of snails which had been believed to have been made extinct when dams were constructed along the Coosa River between 1917 to 1967 have been rediscovered.

Beached dolphins released, Rehabilitated Dolphins Released in Fla.

Of the group of around 70 rough-toothed dolphins that beached themselves in the Florida Keys 2 months ago, 7 survived through rehabilitation to be set free out at sea on Tuesday. They and 2 which were released last month have been radio tagged. Four more will hopefully be released in the future, but one ailing orphan is likely to remain in captivity. The cause of the beaching and deaths is not yet known, as the animals appeared well fed. One suspect is Navy sonar. (Ocean Noise)

EU urged to stop feeding tuna farms with...fish

The environmental group WWF says that EU states should stop feeding the fish in its tuna farms with untreated fish from outside the Mediterranean, as there is a risk of introducing exotic diseases.

Beetle Damaging Saplings in Arkansas

The Asian Ambrosia Beetle, which first appeared in Arkansas about 3 years ago, is believed to be killing a variety of saplings. The insect is an invasive species that first reached the united States in 1974 through a port in Charleston, S.C.

Regulators to Ban Hunting Via Internet

The California is planning on introducing a ban on hunting via the Internet; using a mouse click to kill an animal.

Bear Claws Woman, Covers Her With Brush

A bear in Pa. chased and dragged off a woman, clawed her, then covered her with brush when she played dead. She was released after treatment in hospital.


Do you think that nuclear fusion is a viable and worthwhile energy source for the future?

[Views expressed are those of the author, and do not necessarily reflect those of CompuServe, the Forum or any government, agency or news organization. External Websites are "At Your Own Risk," and no endorsement is expressed or implied.]

Sue [sysop in NewsForum, World Issues, All Animals forums]
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Sci / Health / Environment

Enviro. May 04 '05 Nuclear Fusion

  
 
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