Davis, Benjamin

I. A. Benjamin and S. Davis, Final KeportNo. NBSIR 78-1436, National Bureau of Standards, U.S. Department of Commerce, Gaithersburg, Md., Apr. 1978 T. Kashiwagi,/. FireFlamm. Cons. Prod Flamm. 1, 267 (1974). 

Until the beginning of the 19th century, it was thought that heat was an invisible substance called caloric. An object at a high temperature was thought to contain more caloric than one at a low temperature. However, British physicist Benjamin Thompson in 1798 and British chemist Sir Humphry Davy in 1799 presented... 

Nelson, M. B., Davis, J. A., Benjamin, M. M. and Leckie, J. O. (1977). The Role of Iron Sulfides in Controlling Trace Heavy Metals in Anaerobic Sediments Oxidative Dissolution of Ferrous Monosulfides and the Behavior of Associated Trace Metals." Air Force Weapons Laboratory, Technical Report 425. 

In 1801 Count Rumford (Benjamin Thompson) obtained for Davy a position as assistant lecturer on chemistry and director of the laboratory at the Royal Institution. In the Philosophical Magazine one finds the following description of Davy s first lecture, which was on galvanism ... 

Benjamin G. Davis, Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, UK... 

Burton Hendrick, Statesman of the Lost Cause, Jefferson Davis and His Cabinet (New York Literary Guild of America, 1939), pp. 153-181 Max Kohler, Judah Benjamin Statesman and Jurist (Baltimore, 1905). 

Applebaum, Shalom W., 152 Bell, Robert A., 27,143 Blacher,R. W.,215 Bonomelli, Sherman L., 110 Borkovec, Alexej B., 27,124 Borovsky, Dov, 133 Bradfield, James Y., 65 Carlson, David A., 133 Cook, Benjamin J., 51 Davis, Robin E., 27 DeLoof, Arnold, 40 DeMilo, Albert B., 143 El-Hadi, Fathi Abd, 152 Fales, H. M., 215 Farnsworth, Dan E., 177 Fescemyer, Howard W., 27 Feyeieisen, Rend, 177 Fok, Kam F., 177 Gadot, Michal, 152 Hayes, Timothy K., 40,65 Hewes, Randall S., 95 Hirsch, Jacquelyn, 152 Holman, G. Mark, 40,194 Horodyski, Frank M., 95 Hunt, Donald F., 133 Ishizaki, Hiionori, 20 Iwami, Masafumi, 20 Jaffe, Howard, 100,215 Joshi, Sanjay, 164 Kataoka, Hiroshi, 20 Kawakami, Atsushi, 20 Keeley, Larry L., 65 Keim, P., 215... 

Accurate predictions of the transport of As in groundwater requires site specific data to model adsorption/desorption reactions. In complex mixtures of minerals, it may not be possible to quantify the adsorption properties of individual minerals. Therefore, it has been suggested that adsorption properties of composite materials should be characterized as a whole (Davis and Kent, 1990). Previously published data for adsorption by pure mineral phases such as the surface complexation database for adsorption by ferrihydrite (Dzombak and Morel, 1990) can be a useful starting point for modeling adsorption of solutes in groundwater however, these equilibrium constants may not reflect the adsorption properties of composite oxide coatings on aquifer solids. For example, incorporation of Si, and to a lesser extent, A1 into Fe oxyhydroxides has been shown to decrease adsorption reactivity towards anions (Ainsworth et al., 1989 Anderson and Benjamin, 1990 Anderson et al, 1985). Therefore, equilibrium constants will likely need to be modified for site-specific studies. 

Nelson, M. B., J. A. Davis, M. M. Benjamin, and J. O. Leckie (1977). The role of iron sulfides in controlling trace heavy metals in anaerobic sediments oxidative dissolution of ferrous monosulfides and the behavior of associated trace metals." Report CEEDO-TR-77-13 Civil and Environmental Engineering Development Office, Air Force Systems Command, Tyndall AFB, Florida, USA. 

Humphry Davy was not only an exceptionally gifted scientist, he also had remarkable social talents, and it is typical of him that already as a young man his career was sponsored by such luminaries in British science as Sir Joseph Banks, Henry Cavendish and Benjamin Thompson (Count von Rumford). He was also a great communicator, who from an early age made a name for himself in the popularization of science. At the same time, he had an intuition in scientific matters that allowed him to select problems that would prove to be fruitful and important. His work on electrolysis using Alessandro Volta s newly invented pile is a good example of this. He was convinced that in electrolysis the current induced the separation of compounds into their elementary components rather than the synthesis of new substances, as many scientists believed at the time. 

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