cover image: Proceedings of the Twenty-Sixth Indian Science Congress. Lahore  1939.( Fourth Circuit.). Presidential Addresses.

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Proceedings of the Twenty-Sixth Indian Science Congress. Lahore 1939.( Fourth Circuit.). Presidential Addresses.

1939

Again the study of chemical reaction in a magnetic field has led to the important generalization that the velocity of reaction is accelerated retarded or unaffected by the field according as the sum of the molecular susceptibilities of the final products is greater less or equal to the sum of the molecular susceptibilities of the initial substances.8 Part II Presidential Addresses. [...] The conditions which are favourable for the propagation of such chains the dependence of the chain length on the magnitude of the quantum of radiation responsible for starting the chain the disruption of the chain by substances ' which we call catalytic poisons the life period of excited atoms and molecules and of the unstable substances that are formed as intermediate products in such reaction [...] This depends on the analysis of the auxiliary quantity —namely the potential—from which the several components of the intensity of the earth's field can be derived not only at the surface of the earth but also at different positions above and below the surface. [...] Of the two circuits in each hemisphere the one lying in the sunlit part of the earth is the more intense and the direction of the current is clockwise in the northern hemisphere with its focus at about 40°N. [...] As the diurnal variation at the time of the equinoxes is symmetrical about the equator and as the vertical component of the variation field changes sign on crossing the equator Schuster suggested that the electric currents are caused by horizontal oscillatory movements of the conducting upper atmosphere rendered conducting by the ionizing action of solar ultra-violet radiation across the vertic
technology medicine science
Pages
364
Published in
India
SARF Document ID
sarf.144586
Segment Pages Author Actions
Frontmatter
i-ii unknown view
Presidential Address
1-18 J.C. Ghosh view
Section of Mathematics and Physics
19-44 K.R. Ramanathan view
Section of Chemistry
45-64 P.B. Sarkar view
Section of Geology
65-i S.K. Roy view
Section of Geography and Geodesy
99-140 N. Subrahmanyam view
Section of Botany
141-168 K.D. Bagchee view
Section of Zoology
169-178 C.R. Rao view
Section of Anthropology
179-224 D.N. Majumdar view
Section of Medical and Veterinary Research
225-270 T.S. Tirumurti view
Section of Agriculture
271-316 T.V. Ayyar view
Section of Physiology
317-340 N.M. Basu view
Section of Psychology
341-360 H.P. Maiti view
Map
i-i unknown view

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