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Beni B. Dangi; Maggie A. Cooper; Nathaniel Carnegie; Judy Clark – Journal of Chemical Education, 2025
A laboratory experiment has been designed for teaching laboratories aimed at training students in the basics of spectroscopy in junior and senior level undergraduate chemistry courses. Despite the ubiquity of light-based tools in modern science, students often find it difficult to comprehend light and light-matter interactions. A portable…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Spectroscopy
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Hachmi, Ali; El Hadi, Mohammed; Essaadaoui, Rachid; Mommadi, Omar; Ouariach, Abdelaziz; El Moussaouy, Abdelaziz – Physics Education, 2022
The Arduino board and its communication with several sensors are becoming more and more popular in the physical science community. They offer inspiring possibilities for learning different physical concepts. In this article, we focused on creating a very practical educational system for experimenting with diffraction of laser light and graphically…
Descriptors: Electronic Equipment, Physics, Science Instruction, Teaching Methods
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Joseph, Ariana; Budden, Katherine; Cisek, Richard; Tokarz, Danielle – Journal of Chemical Education, 2018
In a university third-year instrumental chemistry laboratory students build a laser based polarimeter for determining light scattering with commercially available optical components used in modern optics research laboratories. During this laboratory experiment, students learn that solutions containing molecules which scatter light also influence…
Descriptors: Chemistry, Science Instruction, Undergraduate Students, Error Patterns
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Onorato, Pasquale; Gratton, Luigi; Malgieri, Massimiliano; Oss, Stefano – Physics Education, 2017
The lifetimes of the photoluminescent compounds contained in the coating of fluorescent compact lamps are usually measured using specialised instruments, including pulsed lasers and/or spectrofluorometers. Here we discuss how some low cost apparatuses, based on the use of either sensors for the educational lab or commercial digital photo cameras,…
Descriptors: Science Instruction, Light, Physics, Science Experiments
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Zorba, Serkan; Farah, Constantine; Pant, Ravi – European Journal of Physics, 2010
An advanced undergraduate laboratory experiment is outlined which uses a dye laser to map out the chromatic dispersion curve of a polymethyl methacrylate (PMMA) optical fibre. Seven different wavelengths across the visible spectrum are employed using five different dyes. The light pulse is split into two pulses, one to a nearby photodetector and…
Descriptors: Lasers, Laboratory Experiments, Science Instruction, College Science
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Coutinho, Cecil A.; Mankidy, Bijith D.; Gupta, Vinay K. – Chemical Engineering Education, 2010
Diffusion is a fundamental phenomenon that is vital in many chemical processes such as mass transport in living cells, corrosion, and separations. We describe a simple undergraduate-level experiment based on Weiner's Method to probe diffusion in a ternary aqueous mixture of small molecular-weight molecules. As an illustration, the experiment…
Descriptors: Photography, Chemistry, Scientific Concepts, Lasers
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Kedney, Mollie G.; Strunk, Kevin B.; Giaquinto, Lisa M.; Wagner, Jennifer A.; Pollack, Sidney; Patton, Walter A. – Biochemistry and Molecular Biology Education, 2007
Matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS or simply MALDI) has become ubiquitous in the identification and analysis of biomacromolecules. As a technique that allows for the molecular weight determination of otherwise nonvolatile molecules, MALDI has had a profound impact in the molecular…
Descriptors: Identification, Chemistry, Scientific Concepts, Lasers
Haskell, Richard E. – Amer J Phys, 1970
Describes an experiment in which the Fresnel diffraction pattern of a single slit can be displayed directly on an oscilloscope. The experiment requires a minimum amount of equipment and space. Results of the experiment are presented and compared with theoretical calculations carried out by a digital computer. (LC)
Descriptors: College Science, Instruction, Laboratory Experiments, Lasers
Clark, Noel A.; And Others – Amer J Phys, 1970
Presents an advanced laboratory experiment and lecture demonstration by which the intensity spectrum of light scattered by a suspension of particles in a fluid can be studied. From this spectrum, it is possible to obtain quantitative information about the motion of the particles, including an accurate determination of their diffusion constant.…
Descriptors: College Science, Electronics, Laboratory Experiments, Lasers
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Beaty, Donald – Physics Teacher, 1972
Descriptors: College Science, Demonstrations (Educational), Instructional Materials, Laboratory Experiments
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Boyer, R.; Fortin, E. – American Journal of Physics, 1972
Describes an undergraduate optics laboratory experiment to verify the law of intensity in the Fesnel diffraction of a thin wire. A gas laser as light source and a photocell as detector scan the diffraction pattern. The agreement with the theoretical pattern is remarkably good. (Author/TS)
Descriptors: College Science, Instructional Materials, Laboratory Experiments, Lasers
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Page, Don N.; Geilker, C. D. – American Journal of Physics, 1972
Descriptors: College Science, Instructional Materials, Laboratory Experiments, Lasers
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Swiatek, W. F. – School Science Review, 1975
Describes various methods of rendering visible the paths followed by a laser beam for direct viewing or for photographic purposes. (Author/GS)
Descriptors: Laboratory Experiments, Lasers, Light, Photography
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Stirn, Bradley A. – American Journal of Physics, 1975
Describes an experiment for recording holograms using a minimum of costly apparatus. Includes a description of apparatus and materials, the procedure for recording the hologram, the processing of the hologram, and the reconstruction of the image. (GS)
Descriptors: College Science, Higher Education, Laboratory Experiments, Lasers
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Benenson, Raymond E. – Physics Teacher, 2000
Discusses introductory polarized light measurements in which a diode laser pointer replaces the more frequently used polarized helium-neon laser. (WRM)
Descriptors: High Schools, Higher Education, Laboratory Equipment, Laboratory Experiments
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