Hardness of dislocations, a particular metal's hardness can be controlled. Although seemingly counter-intuitive, as the density of dislocations increases, there are more intersections created and consequently more anchor points. Similarly, as more interstitial atoms are added, more pinning points that impede the movements of dislocations are formed. As a result, the more anchor points added, the harder the material will become. Hardness Hardness is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. Some materials (e.g. metals) are harder than others (e.g. plastics, wood). Macroscopic hardness is generally characterized by strong intermolecular bonds, but
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