Category: Physics



Alcohols are certain organic chemical compounds, which have in their structure one or more hydroxyl chemical groups (-OH) covalently bonded to a saturated carbon atom (that is, with simple bonds only to adjacent atoms), thus forming a carbinol group (-C-OH).


rotation of the Earth

What is the rotation of the Earth?   The rotation of the Earth is the movement that the planet makes when turning on its own axis, that is, on itself. This axis consists of...


Human resources management

Human resources management In administration, human resources (HR) is the area that deals with everything related to the staff working in an organization, and the dynamics necessary for its training, stimulation, ranking, etc.  ...


Darwin’s theory of evolution

What is Darwin’s theory? Darwin’s theory is the set of scientific formulations proposed and developed by the British-born naturalist Charles Darwin (1809-1882) that explains the origin of the diversity of life and the role...


What are formal sciences?

What are formal sciences? Formal sciences or ideal sciences are those sciences whose object of study is not the world and nature, nor the physical or chemical laws that govern it, but formal systems,...


Scientific experimentation

What is scientific experimentation? Scientific experimentation means the methods used by researchers (especially the so-called hard or factual sciences) to test their theories and assumptions regarding their objects of study, through the repetition of...


inductive method

What is the inductive method? The inductive method is a process used to draw general conclusions based on particular facts. It is the most used scientific method. Inductivism goes from the particular to the...


The concept and structure of matter

The concept and structure of matter Attempts to solve the question of the unity of all things historically led to the emergence of the concept of “substance” (Latin substantia – essence). By substance understood...


Bohr quantum postulates

Bohr quantum postulates Bohr’s quantum postulates are two basic assumptions introduced by N. Bohr to explain the atom’s stability and spectral laws (within the framework of the Rutherford atom model). The planetar model of...


Doppler effect

Doppler effect The Doppler effect is the change in the frequency of the waves or the wavelength l, which is perceived by the observer when driving the source of the oscillation and the observer...