inventions, scientific discoveries <desc> Description: What new inventions or scientific discoveries have been made? <narr> Narrative: The word "new" in the description is defined as occurring in the 1990s. Documents that indicate a "recent" invention or scientific discovery are considered relevant. Discoveries made in astronomy or any scientific discoveries that are not patentable are not relevant.



<num> Number: 439 
<title> inventions, scientific discoveries 

<desc> Description: 
What new inventions or scientific discoveries have been
made?  

<narr> Narrative: 
The word "new" in the description is defined as occurring
in the 1990s.  Documents that indicate a "recent" 
invention or scientific discovery are considered relevant.
Discoveries made in astronomy or any scientific discoveries
that are not patentable are not relevant.