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  2. Method of image charges - Wikipedia

    en.wikipedia.org/wiki/Method_of_image_charges

    The method of image charges (also known as the method of images and method of mirror charges) is a basic problem-solving tool in electrostatics.The name originates from the replacement of certain elements in the original layout with imaginary charges, which replicates the boundary conditions of the problem (see Dirichlet boundary conditions or Neumann boundary conditions).

  3. Thomson problem - Wikipedia

    en.wikipedia.org/wiki/Thomson_problem

    Thomson's problem is related to the 7th of the eighteen unsolved mathematics problems proposed by the mathematician Steve Smale — "Distribution of points on the 2-sphere". The main difference is that in Smale's problem the function to minimise is not the electrostatic potential 1 r i j {\displaystyle 1 \over r_{ij}} but a logarithmic ...

  4. Electrostatics - Wikipedia

    en.wikipedia.org/wiki/Electrostatics

    Electrostatics is a branch of physics that studies slow-moving or stationary electric charges . Since classical times, it has been known that some materials, such as amber, attract lightweight particles after rubbing. The Greek word for amber, ἤλεκτρον ( ḗlektron ), was thus the source of the word ' electricity '.

  5. How to Solve It - Wikipedia

    en.wikipedia.org/wiki/How_to_Solve_It

    Genre. Mathematics, problem solving. Publication date. 1945. ISBN. 9780691164076. How to Solve It (1945) is a small volume by mathematician George Pólya, describing methods of problem solving. [1] This book has remained in print continually since 1945.

  6. Poisson's equation - Wikipedia

    en.wikipedia.org/wiki/Poisson's_equation

    Poisson's equation is. where is the Laplace operator, and and are real or complex -valued functions on a manifold. Usually, is given, and is sought. When the manifold is Euclidean space, the Laplace operator is often denoted as ∇2, and so Poisson's equation is frequently written as. In three-dimensional Cartesian coordinates, it takes the form.

  7. Earnshaw's theorem - Wikipedia

    en.wikipedia.org/wiki/Earnshaw's_theorem

    Scientists. v. t. e. Earnshaw's theorem states that a collection of point charges cannot be maintained in a stable stationary equilibrium configuration solely by the electrostatic interaction of the charges. This was first proven by British mathematician Samuel Earnshaw in 1842. It is usually cited in reference to magnetic fields, but was first ...

  8. Problem solving - Wikipedia

    en.wikipedia.org/wiki/Problem_solving

    Problem solving is the process of finding solutions to complex or challenging issues. It involves various skills, such as creativity, logic, analysis, and decision making. This article on Wikipedia provides an overview of different problem solving methods, models, techniques, and applications in various domains.

  9. Problem-Solving Therapy for Depression - Healthline

    www.healthline.com/.../problem-solving-therapy

    Problem-solving therapy (PST) is a form of psychotherapy. It may help you develop coping skills to manage upsetting life experiences. “It’s the notion of focusing on the problem in the moment ...