hp Pavilion ZD7000 battery

Project in the American state of Pennsylvania produces ceramic purifiers for,Hp laptop battery, developing countries.

This is the VOA Special English Development Report.

The Braddock Carnegie Library in Braddock, Pennsylvania, looks like an ancient castle. The bottom floor was once a bathhouse. Today, F4486A, CGR-B1870AE, bta0302001
Pavilion ZD7000, PP2182D, 338794-001,it houses a workshop for an arts program. But the library basement also has another use -- as a studio for making ceramic water filters for the developing world.

Placing it there was the idea of Richard Wukich, an art professor at Slippery Rock University in Pennsylvania.battery One of his former students, Jeffrey Schwarz, helped remake the basement to use for pottery-making classes for the community.

Jeff Schwarz is a potter ,battery,and a member of the national service program AmeriCorps. He works with volunteers to produce the water purifiers.

The original design of the ceramic filter came from a chemist in Guatemala, Fernando Mazariegos.CGR-B1870AE,Ron Rivera, a ceramics artist and activist in the group Potters for Peace, saw it and recognized its value.

Ron Rivera improved the,battery, design after a deadly storm, Hurricane Mitch, struck Central America in 1998. He also worked with other groups to set up places to make the filters. He died last year. By that time, hundreds of thousands of the filters were in use in developing countries.

Tests have shown that the filter produces safe drinking water.

On a good day, Jeffrey Schwarz says the studio in the library can produce 20 filters. To make one, clay is mixed with a material that burns.battery It could be sawdust, F4486A or agricultural waste like grain hulls, cocoa or coffee shells. Pine needles can also be used.

The mixture is shaped into a cone and then fired. Burning away the material added to the clay leaves tiny holes.F4486A, CGR-B1870AE, bta0302001
Pavilion ZD7000, PP2182D, 338794-001, These holes let water slowly pass through the walls of the filter.

A protective coating of colloidal silver,battery, is painted on the inside and outside of the filter to kill bacteria. Colloidal silver is made from water with microscopic particles of silver.

The water filter costs little to make. An international service project called Pure Water for All helps support the work.F4486A, CGR-B1870AE, bta0302001
Pavilion ZD7000, PP2182D, 338794-001, The Forest Hills Rotary Club in western Pennsylvania launched the project. The project Web site is purewaterforall.org.

Jeff Schwarz will end his service for AmeriCorps soon. But he plans to continue making ,battery,the water filters in the depths of the library.

And that's the VOA Special English Development Report,Pavilion ZD7000, written by Jerilyn Watson, with Rosanne Skirble in Braddock,battery Pennsylvania. Archives of our reports are at voaspecialenglish.com. I'm Steve Ember.

VOICE TWO:

Enrico Fermi went to Stockholm, Sweden, to accept a Nobel Prize in1938. He won for producing new radioactive elements beyond uranium. Without knowing it, he had split the atom. However, that fact was not recognized until later.

He and his family sailed directly from Stockholm to the United States.F4486A, CGR-B1870AE, bta0302001
Pavilion ZD7000, PP2182D, 338794-001, If he stayed in Europe, he might have been forced to work for Nazi Germany.

VOICE ONE:

Mister Fermi taught at Columbia University in New York City. He also was part of the American research team,battery,for the top secret Manhattan Project,PP2182D,

Mister Fermi led the team that created the world's first controlled, continued nuclear-fission reaction. It happened on December second, 1942, at the University of Chicago.

VOICE TWO:

Mister Fermi directed the building of the first atomic reactor that made the reaction possible. He had invented the method with another scientist,338794-001, Leo Szilard. The reactor was put,battery, together in a squash court under the seats of the university sports center. It contained natural uranium placed in graphite and controlled by pieces of cadmium and boron rods.