81.  Five months after Japanese researchers stumbled upon a promising superconducting material, scientists on two continents have manipulated the material in ways that foreshadow its practical uses.

82.  For the former category, participants must create items that have a practical use, while in the latter one you are free to exercise your imagination.

83.  Mann says his machine does have practical uses.

84.  Satellite communications already make calls between Beijing and Washington easy, so it was not immediately clear what practical use a hot line would have.

85.  Researchers predict the first practical use of laboratory-engineered tissue could come within five years.

86.  Some of the biggest news of the year involved developments that may be years away from practical use but lay the groundwork for future breakthroughs.

87.  That technology originally had been expected to lead to the practical use of a fast breeder in Japan.

88.  The majority of people are still comfortable paying cash and have little trust in electronic payments which to them are too abstract for practical use.

89.  The names have a practical use, too.

90.  The research may have some practical use helping scientists design better pain and inflammation fighters that are easier on the stomach.