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  • Article - 15 Oct 2001
    Superconducting motors based on high temperature superconductors are much more efficient than conventional electric motors and can be made smaller, lighter and more economically. They have enormous...
  • Article - 18 Sep 2001
    A team of reserachers at the University of Pennsylvania have developed a fuel cell, that can run on hydrocarbons such as diesel, toluene and n-decane. Only recently have fuel cells been found that can...
  • Article - 7 Sep 2001
    Good cost/performance ratio. Relative advantages, disadvantages and applications are listed together with a table of typical properties.
  • Article - 31 Aug 2001
    Improved fire resistnace compared to unmodified PPO. Relative advantages, disadvantages and applications are listed together with a table of typical properties.
  • Article - 16 Aug 2001
    Lowest cost, good heat distortion temperature and mid- range tensile strength compared with other modified grades of DAIP. Relative advantages, disadvantages and applications are listed together with...
  • Article - 16 Aug 2001
    Excellent fire resistant properties compared with other modified grades of Alkyd. Relative advantages, disadvantages and applications are listed together with a table of typical properties.
  • Article - 16 Aug 2001
    Very high oxygen index (50%) compared with other modified grades of alkyd. Relative advantages, disadvantages and applications are listed together with a table of typical properties.
  • Article - 16 Aug 2001
    Relative advantages, disadvantages and applications are listed together with a table of typical properties.
  • Article - 16 Aug 2001
    Better friction and wear than unmodified polyimide. Relative advantages, disadvantages and applications are listed together with a table of typical properties.
  • Article - 23 Jul 2001
    Ancient Chinese and Hindus were familiar with mercury (Hg). The metal was also found in Egyptian tombs of 1500 BC. Mercury rarely occurs as such in nature.