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Physics: The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

1Department of Radiation Physics, University of Texas MD Anderson Cancer Center, 2Department of Radiation Oncology, Stellenbosch University and Tygerberg Hospital, 3Departments of Radiation Oncology and Medical Physics, Groote Schuur Hospital and University of Cape Town, 4Department of Radiation Oncology, University of Santo Tomas Hospital, Benavides Cancer Institute, 5Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, 6Academic Affairs, University of Texas MD Anderson Cancer Center, 7Department of Gynecological Oncology and Reproductive Medicine, University of Texas MD Anderson Cancer Center, 8Department of Biostatistics, University of Texas MD Anderson Cancer Center, 9Department of Radiation Oncology, Stanford University

JoVE 57411


 Medicine

Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers

1School of Physics and Astronomy, University of Leeds, 2Institute of Materials Research, University of Leeds, 3School of Chemistry, University of Edinburgh, 4Department of Chemical Engineering, Northeastern University, 5Department of Physics, Northeastern University

JoVE 50603


 Engineering

Elemental-sensitive Detection of the Chemistry in Batteries through Soft X-ray Absorption Spectroscopy and Resonant Inelastic X-ray Scattering

1Geballe Laboratory for Advanced Materials, Stanford University, 2Advanced Light Source, Lawrence Berkeley National Laboratory, 3Department of Materials Science and Engineering, Binghamton University, 4School of Physics, National Key Laboratory of Crystal Materials, Shandong University, 5School of Advanced Materials, Peking University Shenzhen Graduate School, 6School of Metallurgy, Northeastern University, 7Department of Chemical Engineering, University of California-Santa Barbara

JoVE 57415


 Chemistry

Stress Distribution During Cold Compression of Rocks and Mineral Aggregates Using Synchrotron-Based X-Ray Diffraction

1Mineral Physics Institute, Department of Geoscience, Stony Brook University, 2Geological Engineering, Department of Civil and Environmental Engineering, University of Wisconsin-Madison, 3Rock and Ice Physics Laboratory, Department of Earth Sciences, University College London, 4Department of Chemistry, Stony Brook University

Video Coming Soon

JoVE 57555


 JoVE In-Press

Pulling Membrane Nanotubes from Giant Unilamellar Vesicles

1Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, 2Department of Genetics and Complex Diseases, T. H. Chan School of Public Health, Harvard Medical School, 3Department of Cell Biology, Harvard Medical School, 4Sorbonne Universités, UPMC University Paris 06, 5Center for Studies in Physics and Biology, The Rockefeller University

JoVE 56086


 Biology

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

1ARC Centre of Excellence in Advanced Molecular Imaging, School of Physics, University of Melbourne, 2Australian Research Council (ARC) Centre of Excellence in Advanced Molecular Imaging, Department of Chemistry and Physics, La Trobe Institute for Molecular Sciences, La Trobe University, 3Department of Physics, Imperial College London, 4Florey Institute of Neuroscience and Mental Health, 5Science and Engineering Faculty, Queensland University of Technology, 6Swinburne University of Technology, 7Department of Engineering Science, University of Oxford, 8Brookhaven National Laboratory, 9Linac Coherent Light Source, SLAC National Accelerator Laboratory, 10BioXFEL Science and Technology Center, 11Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, 12Australian Synchrotron

JoVE 56296


 Chemistry

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

1Slovak University of Technology in Bratislava, 2Department of Nuclear Reactors, Czech Technical University in Prague, 3Department of Experimental Physics, Palacky University, 4Institute of Physics, Slovak Academy of Sciences, 5Institute of Laboratory Research on Geomaterials, Faculty of Natural Sciences, Comenius University in Bratislava

Video Coming Soon

JoVE 57657


 JoVE In-Press

Conservation of Momentum

JoVE 10323

Source: Nicholas Timmons, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA

The goal of this experiment is to test the concept of the conservation of momentum. By setting up a surface with very little friction, collisions between moving objects can be studied, including their initial and final momenta. The conservation of momentum is one of the most important laws in physics. When something is conserved in physics, the initial value is equal to the final value. For momentum, this means that the total initial momentum of a system will be equal to the total final momentum. Newton's second law states that the force on an object will be equal to the change in the object's momentum with time. This fact, combined with the idea that momentum is conserved, underpins the workings of classical mechanics and is a powerful problem-solving tool.


 Physics I

Vectors in Multiple Directions

JoVE 10315

Source: Nicholas Timmons, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA

This experiment demonstrates how vectors add and subtract in multiple directions. The goal will be to analytically calculate the addition or subtraction of multiple vectors and then to experimentally confirm the calculations. A vector is an object with both magnitude and direction. The magnitude of a vector is simply denoted as the length, while the direction is typically defined by the angle it makes with the x-axis. Because forces are vectors, they can be used as a physical representation of vectors. By setting up a system of forces and finding which additional force will create an equilibrium between the forces, a system of vectors can be experimentally verified.


 Physics I

Generation and Coherent Control of Pulsed Quantum Frequency Combs

1Institut National de la Recherche Scientifique - Centre Énergie, Matériaux et Télécommunications (INRS-EMT), 2School of Engineering, University of Glasgow, 3Department of Energy, Information Engineering and Mathematical Models, University of Palermo, 4School of Mathematical and Physical Sciences, University of Sussex, 5Department of Physics and Material Science, City University of Hong Kong, 6State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, 7Centre for Micro Photonics, Swinburne University of Technology, 8Institute of Photonics, Department of Physics, University of Strathclyde, 9Institute of Photonics and Quantum Sciences, Heriot-Watt University, 10Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 11National Research University of Information Technologies, Mechanics and Optics

Video Coming Soon

JoVE 57517


 JoVE In-Press

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

1Department of Physics, University of Alberta, 2National Institute for Nanotechnology, National Research Council of Canada, Edmonton, 3Max Planck Institute for the Structure and Dynamics of Matter, 4Max Planck Institute for Solid State Research, 5Department of Physics and Astronomy, University of Manitoba, 6Joint Attosecond Science Laboratory, University of Ottawa

JoVE 56861


 Engineering

Assessing the Multiple Dimensions of Engagement to Characterize Learning: A Neurophysiological Perspective

1Department of Didactics, Université du Québec à Montréal, 2Department of IT and Tech3Lab, HEC Montreal, 3Department of Marketing and Tech3Lab, HEC Montreal, 4Department of Specialized Education, Université du Québec à Montréal

JoVE 52627


 Behavior

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures

1Institute for Solid State Research, IFW-Dresden, 2Institute of Metal Physics of National Academy of Sciences of Ukraine, 3Diamond Light Source LTD, 4Department of Physics, University of Johannesburg, 5CNR-SPIN, and Dipartimento di Fisica "E. R. Caianiello", Università di Salerno, 6Institute of Physics of Complex Matter, École Polytechnique Fédérale de Lausanne

JoVE 50129


 Engineering

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