This site from NYU Stern explains the effects exports have on the economy as well as defining net exports. The article is medium to brief in length but worth checking out on the subject.

Introduction to the quantum mechanical model of the atom: Thinking about electrons as probabilistic matter waves using the de Broglie wavelength, the Schrodinger equation, and the Heisenberg uncertainty principle. Electron spin and the...

Information on the emotion of disgust. Also contains information on the Disgust Scale and has links to more in-depth articles about disgust.