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jump to grounded objects--# filing cabinet or a less-charged person-creating a spark.
High summer humidity reduces static electricity. By absorbing moisture, the air and many materials become more conductive, allowing static charges to leak off.
In contrast, lightning,one of the most powerful forms of static electricity, seems more prevalent on hot, muggy nights. Builds in Clouds
A thundercloud somehow works as a wind-driven dynanjo. Studies suggest that positive and [negative charges build up until their mutual attraction becomes so great that electrons shoot from one pole to the other. The current generates light, heat, and sound.
Lightning bolts may measure several miles in length, but are only about one to six inches in diameter. They flash from cloud to cloud and ground to cloud, as well as from cloud to earth, traveling up to 55 miles a second. A lightning bolt’s heat combines nitrqgen and oxygen. The nitrogen oxides dissolve in rain, forming dilute nitric acid and a form of oxygen called ozone that gives air its pungent odor during a storm. The acid reacts with minerals in the earth to form plant-nourishing nitrates.
The less spectacular, everyday form of static electricity helps man, too. It has been put to work in nuclear research, industrial painting processes, and office copying equipment.
NOTICE
The staff of the Welfare Department wishes to express its gratitude to all the organizations and individuals who contributed to the Christmas /fund or furnished Christmas boxes to the needy. The combined efforts provided a happy Christmas for twenty-three of the county’s children in foster care and to twenty children in families, besides providing cheer for some of our elderly folk.
Seal Campaign Realizes
85.7% of Goal
With $36,435.00 or 85.7% received toward the Christmas Seal Campaign goal of $45,200.00, a big “Thank you” goes out to the 13,435 who answered their letters. The Tuberculosis and Health Association of Northern Virginia is hopeful more will respond before the final closing date, ' Chrfstinasr &eaP#ollai6‘hel$ to: Find and aid the people who are ill with Emphysema, Tuberculosis, Asthma, or other Respiratory Disease (RD). Spearhead an active nationwide fight against Air Pollution. Conduct a campaign of education on the health hazards of cigarette smoking, especially among teenagers. Support education about serious lung disease.
Sponsor medical research in [Respiratory Disease. I
90.2%