دروس الفيزياء جدع مشترك علمي

Physics lessons

Physics lessons

Cosmic attraction

Mechanical effects

the movement

Limitations principle

Pulsating tension and thrust of Archimedes

The equilibrium of a solid body is subject to three forces

A solid, rotatable balance

Nailed electric current

Electrical tension

The assembly of ohmic conductors

Characteristics of some inactive dipoles

Characteristic of the active dipole

Transistor

Operational amplifier

Electronic chain

Chemistry lessons

Chemical species

Chemical species extraction

Manufacture of chemical species

The atom model

Geometry of some particles

Periodic arrangement of chemical elements

material quantity

Molar concentration

Chemical transformation

The outcome of the substance is a chemical transformation