A simple experiment for the electron charge qe measurement is described. The experimental set-up contains standard electronic equipment only and can be built in every high-school lab all around the world with pocket money budget for several days. It is concluded that it is time such a practice to be included in the regular high-school education. The achieved 13% accuracy is comparable to the best student university labs. The measurement is based on Schottky noise generated by a photodiode. Using the criterion dollar per accuracy for the electron charge qe measurement, this definitely is the world's best educational experiment. An industrial replica can be easily sold across the globe. *

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A new experimental set-up for Boltzmann constant measurement is described. Statistically averaged square of voltage U 2 is measured for different capacitances C. Boltzmann constant is determined by the equipartition theorem C U 2 = k B T . For fixed capacitance, voltages could be measured for different temperatures. The set-up consists of low-noise high frequency operational amplifiers ADA4898-2. An instrumental amplifier is followed by an inverting amplifier, square of the voltage is created by an analog multiplier AD633 and finally the averaged signal is measured by a multimeter. More than 10 high-school students were able to measure the Boltzmann constant with the experimental set-up in the 5 th Experimental Physics Olympiad with excellent accuracy compared to the price, conditions and available time for the experiment. A new derivation of the important for the statistical physics theorems by Nyquist and Callen-Welton is given in an appendix in the level of introductory courses in physics listened by teachers. For the understanding of the work of the experimental set-up, it is necessary to know only the equipartition theorem.

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A simple experimental setup for measuring the Planck's constant, using Landauer quantization of the conductance between touching gold wires, is described. It consists of two gold wires with thickness of 500 µm and 1.5 cm length, and an operational amplifier. The setup costs less than $30 and can be realized in every teaching laboratory in two weeks. The usage of oscilloscope is required.