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Khan Academy
Khan Academy: Spectroscopy: Interaction of Light and Matter
Tutorial provides a discussion of UV-Vis spectroscopy, infrared (IR) spectroscopy, and the Beer-Lambert law.
PBS
Pbs Learning Media: Meaning of Matter
Matter is all around us, so it's a good idea to know what it is, and why it matters. Learn about matter, its categories, and its subcategories with this interactive lesson.
Other
Quantum Mysteries: Deepening Quantum Mysteries
Although it is arguably the most successful theory in physics, quantum physics has often baffled and confounded both its practitioners and the general public. This informative website discusses the types of mysteries, which still plague...
National High Magnetic Field Laboratory
Magnet Academy: Eric Cornell
Born in Palo Alto, California, and raised in Cambridge, Massachusetts - homes to Stanford and the Massachusetts Institute of Technology, respectively - you could say Eric Cornell was destined to become a renowned scientist. And while he...