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
Substance intoxication code) include: The term contact high is sometimes used to describe intoxication without direct administration, either by second-hand smoke (as with cannabis), or by placebo in the presence of others who are intoxicated. Substance intoxication Substance intoxication is a type of substance use disorder which is potentially maladaptive and impairing, but reversible, and associated with recent use of a substance. If the symptoms are severe, the term "substance intoxication delirium" may be used. Slang terms include: getting high (generic) or being stoned or blazed (usually in reference to cannabis), with many more specific slang terms for each particular type of