Shore durometer °Sh or >90 °Sh the results are not to be trusted. The measurement must be redone with adjacent scale type. Durometer is a dimensionless quantity, and there is no simple relationship between a material's durometer in one scale, and its durometer in any other scale, or by any other hardness test. Using linear elastic indentation hardness, a relation between the ASTM D2240 hardness and the Young's modulus for elastomers has been derived by Gent and by Mix and Alan Jeffrey Giacomin. Gent's relation has the form where formula_2 is the Young's modulus in MPa and formula_3 is the ASTM D2240
South Shore, Chicago the 1920s generated not only a large increase in the area's population, but also greater diversity among its residents and in housing stock. Between 1920 and 1930 the population of South Shore jumped from 31,832 to 78,755. Many of these new residents were Irish, Swedish, German, or Jewish and had followed native white Protestants from Washington Park to live in South Shore's high-rises, single-family homes, and apartment houses. Institutions built in South Shore during these years reflected the community's growing diversity. By 1940 South Shore contained 15 Protestant churches, four Roman Catholic churches, and four Jewish synagogues. As African American