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  • ... Category:Drilling technology Category:Chinese inventions Category:Russian inventions Category:American inventions Category:Azerbaijani ...
    24 KB (3,859 words) - 12:20, 17 June 2015
  • ... bought the company that invented and produced Vaseline ... to 400 million as lamp fuel. For its Chinese trademark and brand Standard Oil adopted the name ...
    40 KB (6,070 words) - 13:49, 1 July 2015
  • ... pollution killing up to 500,000 Chinese each year, admits former health minister ... online Thorsheim, Peter. ''Inventing Pollution: Coal, Smoke, and ...
    79 KB (11,277 words) - 08:41, 22 August 2015
  • ... gas''. Natural gas was used by the Chinese in about 500 BC. They discovered a ... . A "master gas system" was invented in Saudi Arabia in the late ...
    54 KB (8,199 words) - 14:09, 8 July 2015