Which did inventor Borge Bak study at the university of Copenhagen?
Spectroscopy Spectroscopy is the study of the interaction between matter and electromagnetic radiation. Historically, spectroscopy originated through the study of visible light dispersed according to its wavelength, by a prism. Later the concept was expanded greatly to include any interaction with radiative energy as a function of its wavelength or frequency. Spectroscopic data is often represented by an emission spectrum, a plot of the response of interest as a function of wavelength or frequency.
Copenhagen School (international relations) The Copenhagen School of security studies is a school of academic thought with its origins in international relations theorist Barry Buzan's book "", first published in 1983. Theorists associated with the school include Barry Buzan, Ole Wæver and Jaap de Wilde. Many of the school's members worked at the Copenhagen Peace Research Institute.