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February 21, 2010

Lasers may enable fusion

Posted: 05:31 PM ET

Can a swimming pool's worth of water power California for a year?

The answer is yes, assuming all goes according to plan for scientists working on laser-driven fusion, said Ed Moses at Lawrence Livermore National Laboratory. Moses spoke at the annual meeting of the American Association of the Advancement of Science, AAAS, on Sunday.

The sun's heat and light get generated in a fusion reaction, in which two hydrogen atoms combine to make helium. This reaction is driven by gravity, whereas in the proposed fusion reactor, particles come together because of lasers.

Water is the main and virtually limitless ingredient, since the idea is to make use of hydrogen particles in water. This summer and fall, researchers hope to test their technique with tritium, a radioactive isotope of hydrogen that has one proton and two neutrons.

Energy from this fusion machine would be harnessed as follows: The reaction produces neutrons, which are slowed down in a liquid salt. The salt gets hot, and then it's pumped as a heat exchanger, essentially making steam. There are also other advanced ideas about how to get the energy out of the process, including the induction of electric currents.

The capability to get more energy out than is put in should be available in about five to seven years, Moses said. Researchers hope to get a demonstration plant up and running in the next 10 to 15 years.

There are, of course, social challenges in addition to technical challenges, he said. Fusion is one of many approaches being considered for cleaner energy.

To learn more, visit the site of the Laser Inertial Fusion Engine.

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The oriental Art of Cloisonne

Cloisonn is a unique mix of copper and porcelain working skills, non-renewable painting, toning, And etching talent. while it began with Beijing during the Yuan Dynasty (1271 1368), Cloisonn is an intricate process that really needs many years of training for an artisan to master.

Cloisonn underwent a major change within Ming Dynasty around 1426 1456 when a blue enamel was discovered, which gives cloisonn its gorgeous look, And remains to be used today. Ming Dynasty cloisonn is the most intricate.

Cloisonn pieces are in large objects, Such as vases and other large utensils and knick knacks, As well as small things like earrings, bracelets, Chopsticks, Or cisterns.

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When likely to China, don't forget to visit a cloisonn factory. It's an experience you won't soon forget. Cloisonn requires many hours of pain staking labor, And Chinese artisans have mastered the complete process. It's amazing to watch each of the artisans in deep concentration creating these beautiful pieces.

stage 1: Cloisonn function

The first step in creating these lustrous cloisonn pieces is to create the design. Artists draw the design on a notepad, Which is then handed off to the next artisan at the same time.

motion 2: Base working

In this, Copper sheets are shamed on to an enamel piece, selecting a large vase or a small bracelet. The seams are sealed with copper solder and the particular piece is put into a stove to weld it. This is a time consuming step and must be done perfectly to offer the desired effect.

track 3: Copper Wire curving

unbeknownst to most people, Cloisonn is not made out of a single piece of enamel. It is fabricated instead of hundreds, And periods thousands of small copper wires glued to the copper base.

Workers shape a small red copper wire to make the planning as the planer has instructed. a majority of these small, fancy designs can be birds, a flower bouquet, Or any of hundreds of kinds of designs. The wires are attached using small tweezers and pliers. The copper wires are then pasted on the top copper body. Then another worker puts silver solder regarding the red copper wire and the red copper body. The piece is then make the stove where the copper wires are welded onto the base.

undertaking 4: Enamel contents

When chilled, Workers polish the piece and then fill in the wire design with enamel materials in accordance with the color design. Workers sit in front of a table using a small suction pipe to suck the enamel from the colored dishes into the pipe.

After sealing the wires with enamel, Workers absorb any other moisture with cotton. The piece will be put in a kiln for the first firing. throughout the firing process, The enamel lessens. then when cooled, Workers fill with additional materials and fire again. this complete process is repeated three times until the enamel

Completely fills the copper wires.

gait 5: sprucing up

the past step in [url=]chinese women western men[/url] this involved process is polishing. Workers use emery stone to polish the cloisonn until it is smooth. They even up colour enamel material with the copper wire. If there are places the place enamel doesn't quite match evenly with the copper wires, More enamel is added and also the piece is fired again. The polishing process will become again. Then a soft yellow stone is used to grind off any larger flaws. outdoor cooking with charcoal is used last to grind the piece to a high sheen.

Creating the gorgeous cloisonn pieces we see today takes time, serenity, And creation. regardless of the type of cloisonn piece that you have, Including trays for all the gourmet chocolates, It is sure to add beauty and elegance to your office or house.

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Are you a gadgethead? Do you spend hours a day online? Or are you just curious about how technology impacts your life? In this digital age, it's increasingly important to be fluent, or at least familiar, with the big tech trends. From gadgets to Google, smartphones to social media, this blog will help keep you informed.

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