The EJS Helmholtz Coils Model shows a the magnetic field between two circular coils of wire. The default configuration, known as a Helmholtz coil, sets the separation distance D equal to the coil radius R. These values produce a nearly uniform magnetic field B between the coils.
Circumnavigating Pendulum Model
The EJS Circumnavigating Pendulum model displays the dynamics of a mechanical oscillator in uniform circular motion. The mechanical oscillator is free to move in two directions. This 2-dimensional simulation displays all the dynamical features of the Foucault pendulum, except for the dependency of the Foucault pendulum precession on latitude. The simulation shows simultaneously the motion with respect to the inertial coordinate system, and the motion as seen from a co-rotating point of view.
Several multistory buildings in Pasadena seen from the back of a train.
Behavior of steel members with trapezoidally corrugated webs and tubular flanges under static loadin
Engineers have long realized that corrugated webs enormously increase steel girdersâ stability against buckling and can result in very economical design. Recently, the new idea of combining the tubular flanges with corrugated webs brought new issues of research. The objective of the research presented in this thesis is to investigate the behavior of steel members with corrugated webs and tubular flanges subjected to shear, bending, and axial compression. Relative buckling modes are also disco
The commercialization of the Internet has dramatically increased the importance and economic value of domain names. The sets of alphanumeric characters denoting Internet addresses have become a major source of cash, controversy, and case law. Catchy dot-com phrases are splashed across billboards, buses, and Superbowl advertisements. Companies and individuals struggle over the more attractive and memorable of the names, resorting to the courts, alternative dispute resolution mechanisms, and the p
Discrimination, Distrust, and Racial/Ethnic Disparities in Antiretroviral Therapy Adherence Among a
Objective: Although discriminatory health care experiences and health care provider distrust have been shown to be associated with health care disparities, little is known about their contribution to racial/ethnic disparities in antiretroviral therapy adherence. We therefore sought to assess the extent to which discriminatory health care experiences and health care provider distrust influence treatmentrelated attitudes, beliefs, and self-reported adherence in a national sample of HIV-infected pa
A pioneer in a “dangerously hot research area,” Drazen Prelec peers into the human brain while it makes decisions. In his corner of the new field of neuroeconomics, Prelec uses a functional magnetic resonance imaging (fMRI) machine to scan minds pondering the pros and cons of purchasing and selling products like
Exam 1969 - UNSPECIFIED Keywords:Exercise
18.440 Probability and Random Variables (MIT)
This course introduces students to probability and random variable. Topics include distribution functions, binomial, geometric, hypergeometric, and Poisson distributions. The other topics covered are uniform, exponential, normal, gamma and beta distributions; conditional probability; Bayes theorem; joint distributions; Chebyshev inequality; law of large numbers; and central limit theorem.
11. Linear Dynamical Systems Lecture 11
science, electrical, engineering, technology, linear, dynamical, system, LaPlace, transform, matrix, exponential, convergence, polynomial, continous, invariant, time
Darwin’s Compass: Why the evolution of humans is inevitable
Orthodox neo-Darwinism very much emphasises the random and contingent. Re-run the tape of life, as Steven Jay Gould famously observed, and the outcomes would be utterly different. Terrestrial life maybe, but certainly no humans. They, like tulips and tape-worms, are just another evolutionary fluke. The basis of this is hardly surprising: think of random mutations, massive shifts in the environment, not to mention the odd giant rock dropping out of the sky. Life is on a roller-coaster and is flun
No Man's Land
The United States didn't immediately send soldiers to fight in World War I, but that didn't stop Americans from volunteering. In this episode we hear the story behind a nurse's uniform worn by Ethelyn Myers, whose career took her from small-town Kansas to the battlefields of Europe.
Dr Jenny Chesters: Gender convergence in paid and unpaid work, at ANU
Dr Jenny Chesters gives this lecture: 'Gender convergence in paid and unpaid work time: Assessing the relevance of earlier approaches for explaining current trends' at The Australian National University on 12 October, 2010. The increase in dual-earner families over the last few decades raises questions about whether men are sharing the homemaker role now that women are sharing the breadwinner role. Theories of the allocation of unpaid work, such as dependency and exchange approaches, time avail
15.020 Competition in Telecommunications (MIT)
Competition in Telecommunications provides an introduction to the economics, business strategies, and technology of telecommunications markets. This includes markets for wireless communications, local and long-distance services, and customer equipment. The convergence of computers, cable TV and telecommunications and the competitive emergence of the Internet are covered in depth. A number of speakers from leading companies in the industry will give course lectures.
21H.411 History of Western Thought, 500-1300 (MIT)
This course examines the development of the western intellectual tradition from the fall of the Roman Empire through the High Middle Ages. Our basic premise will be that the triumph of Christianity in the west was not the inevitable outcome it might appear from hindsight. Our attention will therefore be focused not only on the development of Christian thought and practice, but on its challengers as well. The core themes of the course include the emergence of a uniform Christian orthodoxy in late
6.435 System Identification (MIT)
This course is offered to graduates and includes topics such as mathematical models of systems from observations of their behavior; time series, state-space, and input-output models; model structures, parametrization, and identifiability; non-parametric methods; prediction error methods for parameter estimation, convergence, consistency, and asymptotic distribution; relations to maximum likelihood estimation; recursive estimation; relation to Kalman filters; structure determination; order estima
2.158J Computational Geometry (MIT)
Topics in surface modeling: b-splines, non-uniform rational b-splines, physically based deformable surfaces, sweeps and generalized cylinders, offsets, blending and filleting surfaces. Non-linear solvers and intersection problems. Solid modeling: constructive solid geometry, boundary representation, non-manifold and mixed-dimension boundary representation models, octrees. Robustness of geometric computations. Interval methods. Finite and boundary element discretization methods for continuum mech
2.993J Introduction to Numerical Analysis for Engineering (13.002J) (MIT)
This course is offered to undergraduates and introduces students to the formulation, methodology, and techniques for numerical solution of engineering problems. Topics covered include: fundamental principles of digital computing and the implications for algorithm accuracy and stability, error propagation and stability, the solution of systems of linear equations, including direct and iterative techniques, roots of equations and systems of equations, numerical interpolation, differentiation and i
21L.015 Introduction to Media Studies (MIT)
Introduction to Media Studies is designed for students who have grown up in a rapidly changing global multimedia environment and want to become more literate and critical consumers and producers of media. Through an interdisciplinary comparative and historical lens, the course defines "media" broadly as including oral, print, performance, photographic, broadcast, cinematic, and digital cultural forms and practices. The course looks at the nature of mediated communication, the functions of media,
2.160 Identification, Estimation, and Learning (MIT)
This course provides a broad theoretical basis for system identification, estimation, and learning. Students will study least squares estimation and its convergence properties, Kalman filters, noise dynamics and system representation, function approximation theory, neural nets, radial basis functions, wavelets, Volterra expansions, informative data sets, persistent excitation, asymptotic variance, central limit theorems, model structure selection, system order estimate, maximum likelihood, unbia