Proceedings of the American Academy of Arts and Sciences, Volumen73Metcalf and Company, 1937 Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell. |
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Página 335
... atoms with energy greater than a certain critical energy can pass through . The change of the permeability and activation energy with the size of diffusing atoms indicates that the accessible pores are only of atomic di- mensions , and ...
... atoms with energy greater than a certain critical energy can pass through . The change of the permeability and activation energy with the size of diffusing atoms indicates that the accessible pores are only of atomic di- mensions , and ...
Página 340
... atoms bounding the space must be increased by at least that amount . If there are four of these atoms , on the average , the probability of such an occurrence is P1 ( last two columns ) . For example , the chance that all four of the ...
... atoms bounding the space must be increased by at least that amount . If there are four of these atoms , on the average , the probability of such an occurrence is P1 ( last two columns ) . For example , the chance that all four of the ...
Página 349
... atoms will have disintegrated , liberating a large amount of energy , and leaving in place of each , eight helium atoms and one lead atom . This renders the mineral susceptible to alteration and selective leaching of lead and radioactive ...
... atoms will have disintegrated , liberating a large amount of energy , and leaving in place of each , eight helium atoms and one lead atom . This renders the mineral susceptible to alteration and selective leaching of lead and radioactive ...
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5 | 145 |
Studies on the Fauna of Some Thermal Springs in the Dutch Indies By C T BRUES 71 | 164 |
Amphibians and Reptiles in Nerada By J M LINSDALE | 195 |
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