With the recent cyberattacks at The Home Depot, Target, JPMorgan Chase, and now Kmart (division of Sears), one has to wonder whether the hackers have the edge in this ongoing cyberwar. Newsflash: in ...

IN studying the spectra of coloured solutions and solid substances by means of the spectrum microscope, it is most important to employ prisms having a suitable amount of dispersion. It would be a very ...

NOW that the Spectroscope is becoming an instrument of world-wide use, we think it will be not uninteresting to call attention to some few points that appear to be often overlooked in designing the ...