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Some Other Interesting Toothbrush Facts
2008-12-10
The first mass-produced toothbrush was made by William Addis of Clerkenwald, England, around 1780.
The first American to patent a toothbrush was H. N. Wadsworth, (patent number 18,653,) on Nov. 7, 1857.
Mass production of toothbrushes began in America around 1885.
One of the first electric toothbrushes to hit the American market was in 1960. It was ..Who Invented Toothbrush and When Was It invented?
2008-12-9
The toothbrush as we know it today was not invented until 1938. However, early forms of the toothbrush have been in existence since 3000 BC. Ancient civilizations used a "chew stick," which was a thin twig with a frayed end. These 'chew sticks' were rubbed against the teeth.
The bristle toothbrush, similar to the type used today, was not invented until 1498 in China. ..Vietnam to build two nuclear power plants in Central Province
2008-11-7
5 November 2008 - The Ministry of Industry and Trade has announced a plan to build two nuclear power plants in the central province of Ninh Thuan, which will be operational from 2020 to 2022.
The announcement was made at an international forum on nuclear power, held in Hanoi by the ministry and the Vietnam Energy Association.
Phan Minh Tuan, head of the preparation..Encouraging investment in Iraq's oil industry
2008-11-7
In November the Surrey Energy Economics Centre (SEEC) at the University of Surrey will release a detailed study into the fiscal framework for Iraq's petroleum sector. The study titled 'Iraq's Oil future: Finding the Right Framework' is authored by SEEC's energy fellow and economist Dr Carole Nakhle. It examines the various contractual and fiscal frameworks that Iraq policy makers could choo..RWE launches pilot plant for algae CO2 conversion
2008-11-7
6 November 2008 - RWE has launched a pilot algae growing plant for CO2 conversion at Niederaussem, Germany.
The concept is based on the biochemical process of photosynthesis in which plants convert light energy into chemical energy. By comparison with land plants, however, micro-algae have a growth rate that is seven to ten times higher. The consequence: faster growth means gre..
