A THEORY of the vapour pressure relationship for isotopic molecules has been given by Topley and Eyring1. It is, however, difficult to see a priori how to apply the theory in calculating vapour ...

THE use of an improved technique has enabled us to obtain more precise measurements than formerly of the polarisation of the lines in Banian spectra. A systematic study has now been made with many ...

According to experts, the aerosols sprays present in the form of deodorants and the carbon-tetrachlorides used for dry cleaning are the major contributors in depleting the ozone layer. An interesting ...