Top posts

• Optics

  01 March 2014 ( #diopters, #Fabry-Perot, #lenses, #Michelson-Morley, #the eye, #two lens devices., #Young slits )

  This module about optics includes simulations about: - Michelson-Morley and Fabry-Perot interferometers. In the latter case, we added simulations of parallel face slide in transmission and reflection (in this case it is a metallic mirror on one side)....

• Chain of masses and springs, or atoms.

  01 March 2014 ( #Chain of atoms, #cutoff frequency, #decomposition into stationnaty waves, #forced oscillations, #Propagation, #Réflection )

  In the case also of a chain of masses linked by springs, , masses are attracted by their neighbors by harmonic forces (of the type -kx, k being the constant of the springs, and x its strain) . This is the classic model of a chain of atoms in a solid,...

• A two dimensional gas.

  01 March 2014 ( #billiard balls, #Boyle-Mariotte, #entropy, #kinetic theory of gases, #mean free path )

  A two-dimensional gas with a maximum of 2000 circular molecules is proposed , in order to illustrate the kinetic theory of gases . The physical properties are the same as for three-dimensional: laws of Mariotte , entropy, Maxwell distribution , local...

• A naive quark model

  01 March 2014 ( #antiquarks, #meson, #proton, #quarks, #scattering )

  You can view simple planar models for proton and meson formed of quarks ( 3 quarks to the proton, a quark and an antiquark in the meson ) . These models are far from reality , but they have the merit of giving an image , which is required to consider...

• Wire Chamber of Charpak.

  01 March 2014 ( #Charpak, #drift chamber, #field map, #wire chamber )

  Wire chambers can locate, in a gas, high energy, charged elementary particles such as electrons or protons, and follow their path, which can for example be deflected by a magnetic field. Very thin metallic wires are stretched between two parallel metal...

• Electric equilibrium of conductors.

  01 March 2014 ( #capacities, #charges at surface, #field map )

  We deal here with the equilibrium of parallel metallic conductors . The axis of conductors are perpendicular to the screen . The electric field is zero inside the conductor and there are charges only at their outer surface. The electric field is , just...