This animation explains transparency and opacity, the principle of radiography, and the light-absorbing properties of materials.
The Doric, Ionic and Corinthian order of columns are different in size and ornamentation as well.
The Benz Patent-Motorwagen is widely regarded as the first vehicle propelled by an internal combustion engine.
This Pacific island is famous for its unique monolithic human figures.
The legendary city of the Mayan-Toltec Empire was located on the territory of present-day Mexico.
According to Homer’s epic, Odysseus’ Stratagem caused the loss of Troy.
This animation compares the life cycles of mosses and ferns, helping to understand the general life cycle of plants.
Candles have been used for lighting since ancient times.
This animation demonstrates the structure and operation of CT scanners.
The two groups of angiosperms are monocots and dicots.
RMS Titanic was the largest passenger ship at the beginning of the 20th century.
This creative animation contains several 3D objects for coloring.
The first supersonic passenger airliner entered service in 1976.
Commercial maritime routes of container ships form a global network.
River locks make rivers with great level differences safe for boating.
The apparent movement of the Sun is caused by the Earth's rotation around its axis.
One of the directors of the circular, open-air Renaissance theater in London was William Shakespeare.
The first commercially successful technique of photography was invented by the French Louis Daguerre.
Combining a conventional internal combustion engine propulsion system with an electric propulsion system reduces emission.
A symbol of division and oppression, the Wall tore a city and numerous families apart.