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J. Robert Oppenheimer, Physicist 罗伯特-奥本海默，物理学家
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-05-01 DOI: 10.1119/5.0209857
R. Cahn, Chris Quigg
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引用次数: 0
Whose work matters? A tool for identifying and developing more inclusive physics textbooks 谁的工作重要？确定和编写更具包容性的物理教科书的工具
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-05-01 DOI: 10.1119/5.0148649
Tai Xiang, William Gray, Janice Hudgings
{"title":"Whose work matters? A tool for identifying and developing more inclusive physics textbooks","authors":"Tai Xiang, William Gray, Janice Hudgings","doi":"10.1119/5.0148649","DOIUrl":"https://doi.org/10.1119/5.0148649","url":null,"abstract":"The lack of representational diversity and role models in physics, including in our textbooks and curricular materials, is an oft-cited contributing factor to the continuing dramatic under-representation of women and people of color in physics. In this work, we develop an automated, Python-based tool for identifying the names and demographics of scientists who are mentioned in indices and chapters of physics textbooks, enabling authors, publishers, and users of physics textbooks to rapidly analyze the demographics of these texts. We quantitatively validate the automated tool using standard machine learning metrics, attaining high accuracy, precision, recall, and F1 scores. The tool is then used to demonstrate two of the many potential applications: examining whose work is mentioned in the entire collection of textbooks used in a representative four-year undergraduate physics major curriculum as well as an analysis of the demographics of scientists mentioned in a selection of ten introductory physics textbooks. Both of the sample analyses result in a similar portrait, showing that the undergraduate physics textbooks examined in this work focus overwhelmingly on work attributed to White men of European, British, and North American descent. This work points to an urgent need for the physics education community, including textbook publishers, authors, and adopters, to work together to broaden our portrayals of physics to reflect the vast diversity of scientists, both historically and contemporaneously, who are working in this field.","PeriodicalId":7589,"journal":{"name":"American Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141043221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Virtual learning via spreadsheets: Real-time simulation of an RC circuit 通过电子表格进行虚拟学习实时模拟 RC 电路
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-05-01 DOI: 10.1119/5.0199004
Fayzan Ahmed, M. Iqbal, Iqbal Tariq, Muhammad Talat
{"title":"Virtual learning via spreadsheets: Real-time simulation of an RC circuit","authors":"Fayzan Ahmed, M. Iqbal, Iqbal Tariq, Muhammad Talat","doi":"10.1119/5.0199004","DOIUrl":"https://doi.org/10.1119/5.0199004","url":null,"abstract":"","PeriodicalId":7589,"journal":{"name":"American Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141025676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Arduino cavity controller for LIGO analogy lab [Am. J. Phys. 87, 44 (2019)] 用于 LIGO 类比实验室的 Arduino 腔体控制器 [Am. J. Phys. 87, 44 (2019)]
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-05-01 DOI: 10.1119/5.0193289
D. Ugolini
{"title":"Arduino cavity controller for LIGO analogy lab [Am. J. Phys. 87, 44 (2019)]","authors":"D. Ugolini","doi":"10.1119/5.0193289","DOIUrl":"https://doi.org/10.1119/5.0193289","url":null,"abstract":"The LIGO analogy lab [Am. J. Phys. 87, 44 (2019)] includes a complicated pair of circuits to sense and control the length of an optical cavity. This Note describes an alternate, Arduino-based controller that is significantly less complex and easier to troubleshoot.","PeriodicalId":7589,"journal":{"name":"American Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141057170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Solar Power Finance Without the Jargon by Jenny Chase 无需专业术语的太阳能发电融资》，作者：Jenny Chase
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-05-01 DOI: 10.1119/5.0209209
{"title":"Solar Power Finance Without the Jargon by Jenny Chase","authors":"","doi":"10.1119/5.0209209","DOIUrl":"https://doi.org/10.1119/5.0209209","url":null,"abstract":"","PeriodicalId":7589,"journal":{"name":"American Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141032616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetic hyperfine interaction made easier 磁超频相互作用变得更容易
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-05-01 DOI: 10.1119/5.0167423
W. Saslow
{"title":"Magnetic hyperfine interaction made easier","authors":"W. Saslow","doi":"10.1119/5.0167423","DOIUrl":"https://doi.org/10.1119/5.0167423","url":null,"abstract":"We present two derivations of the hyperfine interaction in the ground state of hydrogen using classical electrodynamics. We calculate, at the site of the proton moment m→p, the magnetic field B→e due to the magnetization source M→e(r→) of the relatively extended 1 s electron state. This gives the magnetic interaction via −m→p·B→e. One derivation applies the Biot–Savart law to the bound 1 s electric current J→b=∇→×M→ to directly find B→e; the other derivation applies the magnetic version of the Coulomb Law to the bound 1 s magnetic charge density ρb=−∇→·M→ to first obtain μ0H→e and then adds μ0M→ to find B→e. We show, for any source M→, that these two approaches give the same B→(r→), as is expected within classical electrodynamics.","PeriodicalId":7589,"journal":{"name":"American Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141046011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erratum: “Comment on projectile motion with quadratic drag using an inverse velocity expansion” [Am. J. Phys. 90, 861 (2022)] 勘误："利用反速度扩展对具有二次阻力的射弹运动的评论" [Am. J. Phys. 90, 861 (2022)]
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-04-01 DOI: 10.1119/5.0188956
A. Corvo
{"title":"Erratum: “Comment on projectile motion with quadratic drag using an inverse velocity expansion” [Am. J. Phys. 90, 861 (2022)]","authors":"A. Corvo","doi":"10.1119/5.0188956","DOIUrl":"https://doi.org/10.1119/5.0188956","url":null,"abstract":"","PeriodicalId":7589,"journal":{"name":"American Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140357199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analytical expressions for the first passage time distribution and hit distribution in two and three dimensions 二维和三维首次通过时间分布和命中分布的分析表达式
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-04-01 DOI: 10.1119/5.0121165
Alexander Clarkson, Chi-Hang Lam, Hai-Yao Deng
{"title":"Analytical expressions for the first passage time distribution and hit distribution in two and three dimensions","authors":"Alexander Clarkson, Chi-Hang Lam, Hai-Yao Deng","doi":"10.1119/5.0121165","DOIUrl":"https://doi.org/10.1119/5.0121165","url":null,"abstract":"The distribution of the time elapsed before a random variable reaches a threshold value for the first time, called the first passage time (FPT) distribution, is a fundamental characteristic of stochastic processes. Here, by solving the standard macroscopic diffusion equation, we derive analytical expressions for the FPT distribution of a diffusing particle hitting a spherical object in two dimensions (2D) and three dimensions (3D) in the course of unrestricted diffusion in open space. In addition, we calculate, analytically, the angular dependence of the FPT, known as the hit distribution. The analytical results are also compared to simulations of the motions of a random walker on a discrete lattice. This topic could be of wide pedagogical interest because the FPT is important not only in physics but also in chemistry, biology, medicine, agriculture, engineering, and finance. Additionally, the central equations often appear in physics and engineering with only trivial variations, making the solution techniques widely applicable.","PeriodicalId":7589,"journal":{"name":"American Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140354301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Using a Minecraft virtual workspace for learning digital electronics 使用 Minecraft 虚拟工作区学习数字电子技术
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-04-01 DOI: 10.1119/5.0170091
Carl Faust
{"title":"Using a Minecraft virtual workspace for learning digital electronics","authors":"Carl Faust","doi":"10.1119/5.0170091","DOIUrl":"https://doi.org/10.1119/5.0170091","url":null,"abstract":"A set of laboratory exercises are presented, which use the video game Minecraft as the environment for teaching combinational digital logic in an introductory electronics lab. Several advantages are noted when students use the virtual Minecraft environment prior to building any real digital circuits.","PeriodicalId":7589,"journal":{"name":"American Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140355434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Resource Letter DM1: Dark matter: An overview of theory and experiment 资料信件 DM1：暗物质：理论与实验概述
IF 0.9 4区 教育学
American Journal of Physics Pub Date : 2024-04-01 DOI: 10.1119/5.0187346
James B R Battat
{"title":"Resource Letter DM1: Dark matter: An overview of theory and experiment","authors":"James B R Battat","doi":"10.1119/5.0187346","DOIUrl":"https://doi.org/10.1119/5.0187346","url":null,"abstract":"Dark matter remains one of the most significant scientific mysteries of our time. This Resource Letter provides an overview of the astrophysical evidence for dark matter and describes the broad set of theoretical dark matter candidates that have been proposed. Results from dark matter searches are discussed, with a focus on direct detection experiments.","PeriodicalId":7589,"journal":{"name":"American Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.9,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140353612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"教育学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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