Word: rates
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Dates: during 1930-1939
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...offer of practically what Russia had been refused by Presidents Harding, Coolidge and Hoover. The offer: the U. S., while not ready to make an outright Government loan, would set up a revolving fund to finance Soviet purchases. Russia would pay for the use of this fund an interest rate of some 9%, the entire transaction being for an amount so large that interest payments by Russia would more than suffice to wipe (jut the principal of all U. S. claims. Had President Roosevelt made acceptance of this offer the condition of U. S. recognition...
...early, use it more & more frequently as they grow older. Just as rapid is the rise in the number of questions they ask. The number of commands issued, on the other hand, reaches a peak at the age of 4, declines slowly thereafter. Girls show a faster general rate of development than boys. They ask more questions, issue more commands, say more "noes," do more gossiping. Boys surpass them only in fondness for meaningless words, babblings, gurglings, imitations of animals...
...Wert's experiments in the High Pressure Laboratories of the Jefferson Physics Laboratory, Harvard University, disclosed that pressures of 12,000 atmospheres applied to the alloys during the process of age-hardening measureably decreased the rate of aging of five age-hardenable alloys which he tested...
During the age-hardening process in an alloy there is a migration of atoms of the alloying metal to strategic points in the atomic lattice work of the basic metal. The rate of aging depends on how rapidly these solute atoms can congregate at these positions, or diffuse...
...Wert states, "The accelerating effect of temperature on age-hardening is assumedly the result of an increase in the diffusion rate with increase in temperature. Is it not conceivable that pressure's decelerating effect on aging comes about through interference with the diffusion process? High hydrostatic pressures, as we know, compress the metal lattice, in this case, the solvent metal lattice; conceivably the 'viscosity' of, and the difficulty of atomic movement within, the solid solution is proportionately increased, Diffusion then becomes slower and the progress of age-hardening retarded...