Comparisons of the amount of nicotine absorbed although vaping vs smoking is complicated by a number of things – but Linda Bauld, professor of public well being at University of Edinburgh, believes high numbers of young folks might now be dependent on nicotine. How do you help a toddler to stop vaping? Prof Linda Bauld suggests dad and mom search medical advice, as an example…

Of specific significance was the invention in 1927 of a low-voltage “metal vapor lamp” by Friedrich Meyer, Hans-Joachim Spanner, and Edmund Germer, who had been staff of a German agency in Berlin. Of specific importance was the mercury-vapor lamp invented by Küch and Retschinsky in Germany. Along with having engineers and technicians together with services for R&D work on fluorescent lamps, General Electric managed what…