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Ruthenium (Ru) — element No. 44, a platinum metal, discovered by Professor Karl Claus of Kazan University in 1844 and named in honor of Russia. History of discovery, unique properties, and applications.
Catalog: Химия 
90 days ago · From Nigeria Online
MAN AND NATURE
Catalog: Ecology Biology 
2860 days ago · From Nigeria Online
DISTRIBUTION OF LARGE AND SUPERLARGE DEPOSITS
Catalog: Other 
2860 days ago · From Nigeria Online
NONTRADITIONAL DIAMOND DEPOSITS
Catalog: Geology 
2872 days ago · From Nigeria Online
METALS FROM A NEW PERSPECTIVE
Catalog: Engineering 
2878 days ago · From Nigeria Online
SCIENCE AND WAR
Catalog: Military science 
2879 days ago · From Nigeria Online
 

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