## Beginnings of electronics demo

August 27th, 2017## Maxwell distribution law

November 11th, 2016## Boltzmann distribution law

November 10th, 2016Let’s consider a gas that is in the gravity field (fig.1).

Fig. 1. Ideal gas in the gravity field.

## Rigid rotor

November 9th, 2016## Vibrational spectra of diatomic molecules

October 25th, 2016Let’s perform the interpretation of the vibrational spectra of diatomic molecules with use of quantum harmonic oscillator model (fig.1):

Fig.1. The harmonic oscillator: A – in a static state, B – in a position of a motion

## Entropy

October 25th, 2016

Let’s construct *a heat engine* that converts heat into mechanical work. The heat engine consist of the next main elements: *the working body (gas under the piston), heater, cooler *(fig.1).

Fig. 1. The main elements of the heat engine.

## AC generator

October 21st, 2016Let’s consider the device shown in Fig.1

Fig.1. Schematic diagram of a simple AC generator: A -view profile, B – view from the front

## Optical semiconductors

October 18th, 2016The training of specialists in the field fiber-optic communication lines involves the study of such difficult topics as “Light-emitting diode (LED)” and “Semiconductor Lasers” (Zvelto, 1990). Clarification of the physical foundations of these devices requires the use of educational information which is studied in the course of quantum chemistry. Read the rest of this entry »

## Multimedia presentations

January 5th, 2012## Rectilinear uniform motion

January 5th, 2012Given that the trajectory of a material point (MP) motion is a straight line, the motion is called “a rectilinear motion”. The rectilinear motion can be described by the one-dimensional coordinate system. Let us suppose that at time s MP was in the beginning of motion, at time s MP was at the point with coordinate , and at time MP was at the point with coordinate .

Then the position of the MP at time is characterized by radius – vector , MP position at time is characterized by the radius – vector (Fig. 1).