Mechanical bell that functions by means of an electromagnet.
African villages adapt to the natural environment well and reflect of the culture of local tribes.
The ancient city of Babylon was built on the banks of the Euphrates River in Mesopotamia.
Before the emergence of motorised vehicles, letters and parcels were delivered by horse-drawn mail coaches.
The train operates between Paris and southern Germany, its cruise speed is 320 km/h.
Machines converting the energy of wind into useful forms of power were already in use in the Middle Ages.
Electric motors are present in many areas of our everyday lives. Let's learn about the different types.
The inner planets of the Solar System are terrestrial planets while the outer planets are gas giants.
This animation demonstrates how a turbojet engine works.
This animation introduces the studies of astronomers and physicists whose works fundamentally changed our view of the universe.
This animation demonstrates the structure and operation of CT scanners.
The legendary city of the Mayan-Toltec Empire was located on the territory of present-day Mexico.
The animation demonstrates the different flower types of angiosperms.
Physical properties, as well as the flora and fauna of the ocean change with depth.
While generators convert mechanical energy into electrical energy, electric motors convert electrical energy into mechanical energy.
The animation shows the traditional Japanese wooden townhouse, the machiya.
This animation demonstrates Sir Isaac Newton's three laws of motion that laid the foundation for classical mechanics.
Combining a conventional internal combustion engine propulsion system with an electric propulsion system reduces emission.
Built in Neo-Byzantine style, this Orthodox cathedral is one of the symbols of the Bulgarian capital city.
A demonstration of nearby planets, stars and galaxies.