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Engineering Safer Drinking Water In Africa
2012-02-07 04:19:30

In the United States and other developed countries, fluoride is often added to drinking water and toothpaste to help strengthen teeth. But too much naturally occurring fluoride can have exactly the opposite effect.

2011-05-16 20:33:33

A University of Oklahoma environmental science graduate student will travel to Ethiopia in June to test materials she has been investigating as possible solutions to fluorosis—a widespread problem in the Rift Valley, where high levels of fluoride in the drinking water result in dental and skeletal disease.


Word of the Day
upstander
  • A person who stands up for something, as contrasted to a bystander who remains inactive.
  • One of the upright handlebars on a traditional Inuit sled.
The word 'upstander' in the first sense here is a play on the word 'bystander' and the idea of 'standing up' for something.