strength of materials, measurement in engineering of the capacity of metal, wood, concrete, and other materials to withstand stress and strain. Stress is the internal force exerted by one part of an elastic body upon the adjoining part, and strain is the deformation or change in dimension occasioned by stress.
KRISTIN HARTMAN. Bio. Kristin Hartman was born in VÃ¤sterÃ¥s, Sweden. She moved to the United States at a young age and lived in North and South Carolina before she moved to California. Hartman received her BA in Studio Art from California State University, Sacramento, where she was presented with the Deanâs Award in the College of Arts and Letters.
A long-held love of flying resurfaced after Hartman left the University of Nevada in 1961; he had earned his flying license at 21 years of age. In 1969, now teaching at the University of California at Berkeley, he bought an airplane from which he began to make photographs of patterns and features in landscapes below. Over the years, Hartman has explored many approaches to incorporating aerial photography in his imagery, exhibiting his works widely.