Subjects -> EDUCATION (Total: 2566 journals)
    - ADULT EDUCATION (24 journals)
    - COLLEGE AND ALUMNI (10 journals)
    - E-LEARNING (37 journals)
    - EDUCATION (2200 journals)
    - HIGHER EDUCATION (158 journals)
    - INTERNATIONAL EDUCATION PROGRAMS (4 journals)
    - ONLINE EDUCATION (41 journals)
    - SCHOOL ORGANIZATION (14 journals)
    - SPECIAL EDUCATION AND REHABILITATION (40 journals)
    - TEACHING METHODS AND CURRICULUM (38 journals)

EDUCATION (2200 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 857 Journals sorted alphabetically
#Tear : Revista de Educação, Ciência e Tecnologia     Open Access   (Followers: 5)
(Pensamiento), (palabra) y obra     Open Access   (Followers: 4)
21st Century Pedagogy     Open Access   (Followers: 12)
@tic. revista d'innovació educativa     Open Access  
Abant İzzet Baysal Üniversitesi Eğitim Fakültesi Dergisi     Open Access   (Followers: 2)
ABDIMAS ALTRUIS : Jurnal Pengabdian Kepada Masyarakat     Open Access  
Abdimas Toddopuli : Jurnal Pengabdian Pada Masyarakat     Open Access   (Followers: 10)
About Campus     Hybrid Journal   (Followers: 9)
Academic Medicine     Hybrid Journal   (Followers: 81)
Academic Psychiatry     Full-text available via subscription   (Followers: 34)
Academic Questions     Hybrid Journal   (Followers: 9)
Academy of Management Learning and Education     Full-text available via subscription   (Followers: 68)
Accounting & Finance     Hybrid Journal   (Followers: 63)
Accounting Education: An International Journal     Hybrid Journal   (Followers: 25)
ACM Transactions on Computing Education (TOCE)     Hybrid Journal   (Followers: 14)
Acta Científica : Ciências Humanas     Open Access   (Followers: 2)
Acta Didactica Norge     Open Access   (Followers: 2)
Acta Educationis Generalis     Open Access   (Followers: 1)
Acta Paedagogica Vilnensia     Open Access   (Followers: 1)
Acta Scientiarum. Education     Open Access  
Action in Teacher Education     Hybrid Journal   (Followers: 90)
Action Learning: Research and Practice     Hybrid Journal   (Followers: 47)
Action Research     Hybrid Journal   (Followers: 53)
Active Learning in Higher Education     Hybrid Journal   (Followers: 396)
Actualidades Pedagógicas     Open Access  
Adelphi series     Hybrid Journal   (Followers: 14)
Adiyaman University Journal of Educational Sciences     Open Access   (Followers: 1)
Administração Educacional     Open Access  
Administration & Society     Hybrid Journal   (Followers: 18)
Administrative Science Quarterly     Full-text available via subscription   (Followers: 275)
Adult Education Quarterly     Hybrid Journal   (Followers: 258)
Advanced Education     Open Access   (Followers: 19)
Advances in Building Education     Open Access   (Followers: 8)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 38)
Advances in High Energy Physics     Open Access   (Followers: 29)
Advances in School Mental Health Promotion     Partially Free   (Followers: 12)
AERA Open     Open Access   (Followers: 14)
Africa Education Review     Hybrid Journal   (Followers: 31)
African Journal of Chemical Education     Open Access   (Followers: 6)
African Journal of Educational Studies in Mathematics and Sciences     Full-text available via subscription   (Followers: 12)
African Journal of Health Professions Education     Open Access   (Followers: 7)
African Journal of Research in Mathematics, Science and Technology Education     Hybrid Journal   (Followers: 13)
African Journal of Teacher Education     Open Access   (Followers: 4)
Agora     Full-text available via subscription   (Followers: 6)
AGORA Magazine     Open Access   (Followers: 1)
Ahmad Dahlan Journal of English Studies     Open Access   (Followers: 4)
AIDS Education and Prevention     Full-text available via subscription   (Followers: 9)
Ainedidaktiikka     Open Access  
Akademos     Open Access   (Followers: 2)
AKSIOMA Journal of Mathematics Education     Open Access   (Followers: 4)
AKSIOMATIK : Jurnal Penelitian Pendidikan dan Pembelajaran Matematika     Open Access   (Followers: 1)
Aksis : Jurnal Pendidikan Bahasa dan Sastra Indonesia     Open Access  
Al-Athfaal : Jurnal Ilmiah Pendidikan Anak Usia Dini     Open Access   (Followers: 2)
Al-Bahith Journal     Open Access   (Followers: 1)
Al-Fikrah     Open Access   (Followers: 3)
Al-Idarah : Jurnal Kependidikan Islam     Open Access  
Al-Jabar : Jurnal Pendidikan Matematika     Open Access   (Followers: 1)
Al-Mudarris : Journal of Education     Open Access   (Followers: 3)
Al-Tadris : Jurnal Pendidikan Bahasa Arab     Open Access  
Al-Tadzkiyyah : Jurnal Pendidikan Islam     Open Access  
Al-Tanzim : Jurnal Manajemen Pendidikan Islam     Open Access  
Al.Qadisiya journal for the Sciences of Physical Education     Open Access  
Alberta Journal of Educational Research     Full-text available via subscription   (Followers: 9)
Aldaba     Open Access   (Followers: 1)
Alexandria : Revista de Educação em Ciência e Tecnologia     Open Access  
Alotrop     Open Access  
Alsic : Apprentissage des Langues et Systèmes d'Information et de Communication     Open Access   (Followers: 18)
Alteridad     Open Access  
Ambiente & Educação : Revista de Educação Ambiental     Open Access  
American Annals of the Deaf     Full-text available via subscription   (Followers: 16)
American Educational Research Journal     Hybrid Journal   (Followers: 259)
American Journal of Business Education     Open Access   (Followers: 17)
American Journal of Distance Education     Hybrid Journal   (Followers: 35)
American Journal of Education     Full-text available via subscription   (Followers: 295)
American Journal of Educational Research     Open Access   (Followers: 76)
American Journal of Health Education     Hybrid Journal   (Followers: 39)
American Journal of Physics     Full-text available via subscription   (Followers: 58)
American String Teacher     Full-text available via subscription   (Followers: 3)
Ana Dili Eğitimi Dergisi / Journal of Mother Tongue Education     Open Access   (Followers: 1)
ANALES de la Universidad Central del Ecuador     Open Access   (Followers: 4)
Anargya : Jurnal Ilmiah Pendidikan Matematika     Open Access   (Followers: 8)
Annales Universitatis Mariae Curie-Sklodowska, sectio N – Educatio Nova     Open Access  
Annali dell'Universita di Ferrara     Hybrid Journal  
Annals of Dyslexia     Hybrid Journal   (Followers: 11)
Annals of Modern Education     Full-text available via subscription   (Followers: 6)
Antistasis : An Open Educational Journal     Open Access   (Followers: 9)
Anuario Pilquen : Sección Divulgación Científica     Open Access  
Apertura. Revista de innovación educativa‏     Open Access   (Followers: 3)
Ápice : Revista de Educación Científica     Open Access  
Applied Environmental Education & Communication     Hybrid Journal   (Followers: 19)
Applied Measurement in Education     Hybrid Journal   (Followers: 11)
Aprender     Open Access  
AR-RIAYAH : Jurnal Pendidikan Dasar     Open Access  
Arabia     Open Access   (Followers: 1)
Arabiyatuna : Jurnal Bahasa Arab     Open Access   (Followers: 1)
Archivos de Ciencias de la Educación     Open Access   (Followers: 2)
Areté, Revista Digital del Doctorado en Educación de la Universidad Central de Venezuela     Open Access   (Followers: 1)
Arrancada     Open Access  
Ars Educandi     Open Access  
Art Design & Communication in Higher Education     Hybrid Journal   (Followers: 30)
Art Education     Hybrid Journal   (Followers: 1)
Arte e Investigación     Open Access   (Followers: 1)
Arts and Humanities in Higher Education     Hybrid Journal   (Followers: 49)
Arts Education Policy Review     Hybrid Journal   (Followers: 6)
Artseduca : Revista electrónica de educación en las ARTES     Open Access   (Followers: 1)
ASEAN Journal of Education     Open Access   (Followers: 4)
ASHE Higher Education Reports     Hybrid Journal   (Followers: 21)
Asia Pacific Education Review     Hybrid Journal   (Followers: 13)
Asia Pacific Journal of Education     Hybrid Journal   (Followers: 27)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 16)
Asia-Pacific Journal of Teacher Education     Hybrid Journal   (Followers: 28)
Asia-Pacific Science Education     Open Access   (Followers: 1)
Asian Association of Open Universities Journal     Open Access   (Followers: 1)
Asian Education and Development Studies     Hybrid Journal   (Followers: 7)
Asian Journal of Distance Education     Open Access   (Followers: 5)
Asian Journal of Education and Social Studies     Open Access   (Followers: 3)
Asian Journal of English Language Teaching     Full-text available via subscription   (Followers: 19)
Asian Journal of Legal Education     Full-text available via subscription   (Followers: 4)
Asian-Pacific Journal of Second and Foreign Language Education     Open Access   (Followers: 5)
ASp     Open Access   (Followers: 4)
Assessing Writing     Hybrid Journal   (Followers: 17)
Assessment & Evaluation in Higher Education     Hybrid Journal   (Followers: 258)
Assessment for Effective Intervention     Hybrid Journal   (Followers: 15)
Assessment in Education: Principles, Policy & Practice     Hybrid Journal   (Followers: 50)
Assessment Update     Hybrid Journal   (Followers: 7)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5)
At-Ta'dib Jurnal Kependidikan Islam     Open Access  
At-Taqaddum     Open Access  
At-Turats     Open Access  
ATENA Didaktik     Open Access   (Followers: 5)
Atenas : Revista Científico Pedagógica     Open Access   (Followers: 1)
Athenea Digital     Open Access  
ATIKAN : Jurnal Kajian Pendidikan (Journal of Educational Studies)     Open Access  
Atthulab : Islamic Religion Teaching and Learning Journal     Open Access   (Followers: 1)
Aula Abierta     Open Access   (Followers: 2)
Aula de Encuentro     Open Access  
Australasian Journal of Educational Technology     Open Access   (Followers: 20)
Australasian Journal of Engineering Education     Hybrid Journal   (Followers: 3)
Australasian Journal of Gifted Education     Full-text available via subscription   (Followers: 8)
Australasian Marketing Journal (AMJ)     Hybrid Journal   (Followers: 6)
Australian Art Education     Full-text available via subscription   (Followers: 8)
Australian Educational Researcher     Hybrid Journal   (Followers: 34)
Australian Journal of Adult Learning     Full-text available via subscription   (Followers: 16)
Australian Journal of Career Development     Hybrid Journal   (Followers: 5)
Australian Journal of Dyslexia and Other Learning Difficulties     Full-text available via subscription   (Followers: 10)
Australian Journal of Education     Hybrid Journal   (Followers: 51)
Australian Journal of Environmental Education     Full-text available via subscription   (Followers: 11)
Australian Journal of Indigenous Education, The     Full-text available via subscription   (Followers: 15)
Australian Journal of Learning Difficulties     Hybrid Journal   (Followers: 7)
Australian Journal of Music Education     Full-text available via subscription   (Followers: 6)
Australian Journal of Public Administration     Hybrid Journal   (Followers: 473)
Australian Journal of Teacher Education     Open Access   (Followers: 31)
Australian Mathematics Teacher, The     Full-text available via subscription   (Followers: 7)
Australian Primary Mathematics Classroom     Full-text available via subscription   (Followers: 7)
Australian Screen Education     Full-text available via subscription   (Followers: 3)
Australian TAFE Teacher     Full-text available via subscription   (Followers: 4)
Australian Universities' Review, The     Full-text available via subscription   (Followers: 4)
Autism     Hybrid Journal   (Followers: 356)
Avaliação : Revista da Avaliação da Educação Superior (Campinas)     Open Access  
Azalea: Journal of Korean Literature & Culture     Full-text available via subscription   (Followers: 4)
Bahastra     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 2)
Baltic Journal of Career Education and Management     Open Access   (Followers: 1)
Barn : Forskning om barn og barndom i Norden     Open Access   (Followers: 1)
Basastra : Jurnal Bahasa, Sastra, dan Pengajarannya     Open Access   (Followers: 1)
BC TEAL Journal     Open Access  
Becoming : Journal of the Georgia Middle School Association     Open Access   (Followers: 3)
Behavioural Sciences Undergraduate Journal     Open Access   (Followers: 6)
BELAJEA : Jurnal Pendidikan Islam     Open Access  
BELIA : Early Childhood Education Papers     Open Access   (Followers: 10)
BELT - Brazilian English Language Teaching Journal     Open Access   (Followers: 5)
Berkeley Review of Education     Open Access   (Followers: 10)
Beyond Behavior     Hybrid Journal   (Followers: 1)
Biblioteca Escolar em Revista     Open Access  
Biblioteka i Edukacja     Open Access   (Followers: 4)
Bio-Lectura     Open Access  
BIODIK : Jurnal Ilmiah Pendidikan Biologi     Open Access   (Followers: 1)
Bioedukasi : Jurnal Pendidikan Biologi FKIP UM Metro     Open Access   (Followers: 1)
Bioeduscience     Open Access   (Followers: 3)
Bioma : Jurnal Ilmiah Biologi     Open Access  
Biomedical Engineering Education     Hybrid Journal   (Followers: 2)
Biosaintifika : Journal of Biology & Biology Education     Open Access   (Followers: 9)
Biosfer : Jurnal Biologi dan Pendidikan Biologi     Open Access  
Biosfer : Jurnal Tadris Biologi     Open Access  
BISE : Jurnal Pendidikan Bisnis dan Ekonomi     Open Access   (Followers: 1)
Biuletyn Historii Wychowania     Open Access  
BMC Medical Education     Open Access   (Followers: 50)
BMJ Simulation & Technology Enhanced Learning     Hybrid Journal   (Followers: 13)
Boletim Cearense de Educação e História da Matemática     Open Access  
Boletim de Educação Matemática     Open Access  
Boletim Técnico do Senac     Open Access  
Bordón : Revista de Pedagogía     Open Access   (Followers: 1)
British (Jurnal Bahasa dan Sastra Inggris)     Open Access   (Followers: 1)
British Educational Research Journal     Hybrid Journal   (Followers: 280)
British Journal of Educational Studies     Hybrid Journal   (Followers: 212)
British Journal of Educational Technology     Hybrid Journal   (Followers: 210)
British Journal of Music Education     Hybrid Journal   (Followers: 28)
British Journal of Religious Education     Hybrid Journal   (Followers: 11)
British Journal of Sociology of Education     Hybrid Journal   (Followers: 66)
British Journal of Special Education     Hybrid Journal   (Followers: 59)

        1 2 3 4 5 6 7 8 | Last

Similar Journals
Journal Cover
American Journal of Physics
Journal Prestige (SJR): 0.456
Citation Impact (citeScore): 1
Number of Followers: 58  
 
  Full-text available via subscription Subscription journal
ISSN (Print) 0002-9505 - ISSN (Online) 1943-2909
Published by AIP Homepage  [27 journals]
  • In this issue: October 2021

    • Free pre-print version: Loading...

      Authors: Joseph Amato, Tyler Engstrom, John Essick, Harvey Gould, Claire A. Marrache-Kikuchi, Raina Olsen, Beth Parks, Jan Tobochnik
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 905-906, October 2021.

      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:23Z
      DOI: 10.1119/5.0066646
       
  • Erratum: “Two and three particles interacting in a one-dimensional
           trap” [Am. J. Phys. 85, 769 (2017)]

    • Free pre-print version: Loading...

      Authors: MengXing Na, Frank Marsiglio
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 984-984, October 2021.

      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:22Z
      DOI: 10.1119/5.0065753
       
  • Science by Diverse Scientists: A Cal-Bridge Physics & Astronomy
           Seminar Series

    • Free pre-print version: Loading...

      Authors: Sara Callori, Carol Hood, Alexandra Miller, Aaron Romanowsky, David A Strubbe
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 908-908, October 2021.

      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:21Z
      DOI: 10.1119/5.0065970
       
  • Using Hilbert curves to organize, sample, and sonify solar data

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      Authors: W. Dean Pesnell, Kyle Ingram-Johnson, Kevin Addison
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 943-954, October 2021.
      How many ways can we explore the Sun' We have images in many wavelengths and squiggly lines of many parameters that we can use to characterize the Sun. We know that while the Sun is blindingly bright to the naked eye, it also has regions that are dark in some wavelengths of light. All of those classifications are based on vision. Hearing is another sense that can be used to explore solar data. Some data, such as the sunspot number or the extreme ultraviolet spectral irradiance, can be readily sonified by converting the data values to musical pitches. Images are more difficult. Using a raster scan algorithm to convert a full-disk image of the Sun to a stream of pixel values creates variations that are dominated by the pattern of moving on and off the limb of the Sun. A sonification of such a raster scan will contain discontinuities at the limbs that mask the information contained in the image. As an alternative, Hilbert curves are continuous space-filling curves that map a linear variable onto the two-dimensional coordinates of an image. We have investigated using Hilbert curves as a way to sample and analyze solar images. Reading the image along a Hilbert curve keeps most neighborhoods close together as the resolution (i.e., the order of the Hilbert curve) increases. It also removes most of the detector size periodicities and may reveal larger-scale features. We present several examples of sonified solar data, including sunspot number, extreme ultraviolet (EUV) spectral irradiances, an EUV image, and a sequence of EUV images during a filament eruption.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:21Z
       
  • Methods to depolarize narrow and broad spectrum light

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      Authors: Tom A. Kuusela
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 963-968, October 2021.
      In many optics applications, it is important to use well-polarized light. However, there are situations in which randomly polarized light has distinct advantages. We demonstrate two approaches by which a polarized light beam can be totally depolarized, each using a simple setup and inexpensive components. The first method, designed for narrow spectrum light, works by combining the horizontal polarization component of the beam with the delayed vertical component. The second method, which is most suitable for broad spectrum light, uses birefringent quartz plates. In both approaches, the polarization state is characterized by Stokes parameters measured using a rotating quarter-wave plate and fixed polarizer. We measure the coherence function of the electric fields and determine the minimum delay or quartz plate thickness required for decoherence. Coherences are modelled by Gaussian or Lorentzian functions and compared with the spectral properties of the light sources.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:20Z
       
  • Analyzing the motion of a mass sliding on a sphere with friction

    • Free pre-print version: Loading...

      Authors: Terry W. McDaniel
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 921-926, October 2021.
      A well-known problem in classical mechanics that is often presented for pedagogical purposes involves a small mass that slides without friction under a gravitational force on the surface of a sphere. Commonly, students are asked to find the angular position where a mass with no azimuthal motion leaves the spherical surface, and this question is easily within the reach of most intermediate physics students. However, a complete solution for more general motion of the mass on the spherical surface (including friction) may be suitable for many advanced undergraduates. Without friction, the problem including azimuthal motion is really an inverted version of an ideal spherical pendulum. This problem is also useful for extending discussion in classical mechanics to more sophisticated topics beyond solving Newton's laws of motion, such as the importance of conservation laws and constants of motion as they relate to symmetry, conservative versus dissipative forces, and the role of constraints.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:19Z
       
  • Tidal effects in a spacecraft

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      Authors: Ugo Besson
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 909-915, October 2021.
      Within a vehicle in free fall, such as a spacecraft orbiting the Earth, everything appears as if there was no force of gravity: objects float and remain stationary with respect to the walls, a situation commonly described as “weightlessness.” In relativity, such a vehicle is considered an inertial reference system. In fact, this is not exactly true because of the non-uniformity of the gravitational field. Tidal effects and forces appear, and complicated motions are generated. This article examines these effects, limiting the use of complicated mathematical formalism in favor of physical reasoning. Two particular cases are treated: a spacecraft that rotates about its center of mass in sync with its orbit, so it always faces the Earth the same way, and a spacecraft that maintains the same orientation with respect to the fixed stars throughout its orbit. The static problem is solved by finding the tidal forces acting on an object at different positions within the spacecraft. The trajectories of objects released from various positions within the spacecraft are then calculated. Some concluding conceptual observations are given.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:18Z
       
  • Gravity-driven fluid oscillations in a drinking straw: An alternative
           approach

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      Authors: Robert Frederik Diaz Uy
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 982-983, October 2021.

      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:17Z
       
  • A new graphical depiction of the barn and pole paradox

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      Authors: B. Cameron Reed
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 927-929, October 2021.
      A novel graphical depiction of the relativistic barn and pole paradox is constructed in such a way that the space-time plot axes are dimensionless for both observers. Times of events over the entire range of pole-to-barn length ratio and relative speeds can be displayed in one plot for each observer. That for the barn frame clearly depicts the range of pole-to-barn length ratio over which the paradox appears, while that for the pole frame shows that the pole vaulter will only see the pole within the barn if the proper length of the pole is smaller than the contracted length of the barn.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:16Z
       
  • Drone–drone collisions over New York City via the kinetic theory of
           gases

    • Free pre-print version: Loading...

      Authors: Edward W. Walbridge
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 930-934, October 2021.
      It is anticipated that future skies over urban areas will be busy with drones flying back and forth delivering packages. Taking New York City as an extreme example, it is estimated that by 2026, 2600 delivery drones could simultaneously populate the city's airspace. The drone–drone collision rate of “dumb” drones can be calculated by treating them as a gas of large, randomly moving, spherical molecules, using the kinetic theory of gases. Collisions can be avoided by making each drone “smart,” i.e., by giving each a “sense and avoid” capability for detecting and avoiding a potential collision. For smart drones over New York City, the rate of potential collisions, or encounter rate, extends over a surprisingly large range: from 1 to 170,000 encounters/day, depending on input assumptions. This places stringent constraints on the probability that a smart drone encounter will result in a collision, constraints that must be met by the drone operator. Policy implications are discussed.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:15Z
       
  • Isotropic inertia tensor without symmetry of mass distribution

    • Free pre-print version: Loading...

      Authors: Andrei A. Snarskii, Sergii Podlasov, Mikhail Shamonin
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 916-920, October 2021.
      Conventional calculations of the inertia tensor in undergraduate physics course are usually done for highly symmetrical bodies. Students might therefore get the impression that the moment of inertia about any axis through the center of mass is the same only for bodies with the highest degree of symmetry relative to this point, e.g., for spheres. A simple, seemingly counterintuitive example is presented, showing that the moment of inertia of a non-regular body, here an assembly of material points, can be the same about any axis passing through its center of mass.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:14Z
       
  • Broken pencils and moving rulers: After an unpublished book by Mitchell
           Feigenbaum

    • Free pre-print version: Loading...

      Authors: Jean-Pierre Eckmann
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 955-962, October 2021.
      Mitchell Feigenbaum discovered an intriguing property of viewing images through cylindrical mirrors or looking into water. Because the eye is a lens with an opening of about 5 mm, many different rays of reflected images reach the eye and need to be interpreted by the visual system. This has the surprising effect that what one perceives depends on the orientation of the head, whether it is tilted or not. I explain and illustrate this phenomenon on the example of a human eye looking at a ruler immersed in water.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:14Z
       
  • Focused writing in the introductory physics laboratory

    • Free pre-print version: Loading...

      Authors: Don S. Lemons
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 907-907, October 2021.

      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:13Z
      DOI: 10.1119/5.0067104
       
  • Photoelectric effect measurements on a conventional neon bulb

    • Free pre-print version: Loading...

      Authors: Jesús González-Laprea, L. J. Borrero-González, Kabir Sulca, Santiago Díaz-Echeverría, Carlos Alberto Durante Rincón
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 969-974, October 2021.
      This work outlines a new instructional laboratory experiment focused on the photoelectric effect and the determination of Planck's constant. The described laboratory system employs contemporary experimental techniques, including real-time data acquisition based on the use of Arduino boards. The basis of this experiment is to measure the associated turn-on voltages of a small neon bulb as it is illuminated with several different optical wavelengths. Six different LED and laser illumination sources were used with wavelengths ranging from UV (383 nm) to red (659 nm). A plot of the bulb's turn-on voltage as a function of the inverse of the excitation wavelength showed a linear relationship with a high correlation coefficient. Planck's constant was determined from this plot, yielding a value of [math]. Additionally, the system allows for experimental verification of the independence between excitation light intensity and the energy needed to ionize the gas inside the bulb.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:13Z
       
  • Understanding and compensating for noise on IBM quantum computers

    • Free pre-print version: Loading...

      Authors: Scott Johnstun, Jean-François Van Huele
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 935-942, October 2021.
      Quantum algorithms offer efficient solutions to computational problems that are expensive to solve classically. Publicly available quantum computers, such as those provided by IBM, can now be used to run small quantum circuits that execute quantum algorithms. However, these quantum computers are highly prone to noise. Here, we introduce important concepts of quantum circuit noise and connectivity that must be addressed to obtain reliable results on quantum computers. We utilize several examples to show how noise scales with circuit depth. We present Simon's algorithm, a quantum algorithm for solving a computational problem of the same name, explain how to implement it in IBM's Qiskit platform, and compare the results of running it both on a noiseless simulator and on physical hardware subject to noise. We discuss the impact of Qiskit's transpiler, which adapts ideal quantum circuits for physical hardware with limited connectivity between qubits. We show that even circuits of only a few qubits can have their success rate significantly reduced by quantum noise unless specific measures are taken to minimize its impact.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:12Z
       
  • Molecular dynamics simulation of synchronization of a driven particle

    • Free pre-print version: Loading...

      Authors: Tiare Guerrero, Danielle McDermott
      Abstract: American Journal of Physics, Volume 89, Issue 10, Page 975-981, October 2021.
      Synchronization plays an important role in many physical processes. We discuss synchronization in a molecular dynamics simulation of a single particle moving through a viscous liquid while being driven across a washboard potential energy landscape. Our results show many dynamical patterns as the landscape and driving force are altered. For certain conditions, the particle's velocity and location are synchronized or phase-locked and form closed orbits in phase space. Quasi-periodic motion is common, for which the dynamical center of motion shifts the phase space orbit. By isolating synchronized motion in simulations and table-top experiments, we can study complex natural behaviors important to many physical processes.
      Citation: American Journal of Physics
      PubDate: 2021-09-22T12:44:11Z
       
 
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