Other graduates recall physics classes with Peter Bergmann, Einstein's assistant, that were so much fun that students questioned whether they were learning; and how digging ditches became a lesson in the science of soil strata.
12.
In general, a shortage of competent concrete ( necks or inclusions ) is registered by relative cool regions; the presence of extra concrete ( over-pour bulging into soft soil strata ) is registered by relative warm regions.
13.
A spread footing which changes elevation in several places in a series of vertical " steps " in order to follow the contours of a sloping site or accommodate changes in soil strata, is termed a "'stepped footing " '.
14.
It was exciting, Seifert says, to identify soil strata levels at the FBI site back to 1830 and to find such items as a porcelain bowl made in China before the Mexican war, a table pitcher and a pre-1850 military epaulet and brass eagle.
