Base units, their origin and meaning

Where base units come from and how they are related to each other? The second, the metre and other base units are useful approximations for describing our universe. What we measure are mere ratios between measured values and base units. The fundamental question is how...

Basic principles of mathematics

What is mathematics? Counting. Counting what? Counting what is distinguishable to our perception. Distinguishability over time – distinguishable objects, processes or feelings must have a certain duration. See e.g. biological species (difference between Devonian...

Mechanical engineering

 Interesting elasticity, especially spring elasticity Here we have four examples of elastic behaviour in mechanics. We suppose absolutely rigid the ball, the wall and the construction. Reference system is outside – connected with “paper”. See images...

Mechanics and Technology

Thermodynamics  – mechanics of chaotic behaviour of particles The basis of thermodynamics and indeed of the whole world is chaos. Chaos in a closed space. Chaos of moving particles, molecules, atoms. This chaos can be converted into mechanical work by the...

Probability and randomnes

In the beginning we have an example: 16 balls passing through Galton board – the direction to the right is marked I, to the left 0 See an image below – there is the Galton board with 4 rows. 1            2               3               4             5There...