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Gagnon, Michel – Physics Teacher, 2012
Introduced to study components of ionized gas, the mass spectrometer has evolved into a highly accurate device now used in many undergraduate and research laboratories. Unfortunately, despite their importance in the formation of future scientists, mass spectrometers remain beyond the financial reach of many high schools and colleges. As a result,…
Descriptors: Simulation, Science Laboratories, Computer Software, Spectroscopy
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Gagnon, Michel – Physics Teacher, 2012
Early in the last century, Robert Millikan developed a precise method of determining the electric charge carried by oil droplets. Using a microscope and a small incandescent lamp, he observed the fall of charged droplets under the influence of an electric field inside a small observation chamber. In so doing, Millikan demonstrated the existence of…
Descriptors: Physics, Fuels, Energy, Science Experiments