Janka hardness test Janka hardness test The Janka hardness test (from the Austrian-born emigrant Gabriel Janka, 1864-1932) measures the resistance of a sample of wood to denting and wear. It measures the force required to embed an diameter steel ball halfway into a sample of wood. A common use of Janka hardness ratings is to determine whether a species is suitable for use as flooring. The hardness of wood varies with the direction of the wood grain. Testing on the surface of a plank, perpendicular to the grain, is said to be of "side hardness". Testing the cut surface of a stump is
Janka Bryl National Academy of Sciences of Belarus. Bryl's first story appeared in 1938 and his first short story collection appeared in 1946. The first collection of stories was called "Apaviadanni" (Stories). Bryl's books are mostly works of psychological fiction and his characters tend to be sensitive and prone to introspection. They were largely set in Belarusian villages and frequently about the people's fight against the Nazis. Janka Bryl Janka (Yanka) Bryl (, August 4, 1917 – July 25, 2006) was a Belarusian writer best known for his short stories. He was one of the older generation of Soviet writers who had