Roman soldier (1st century BC)

Mercenaries of the ancient Roman army were well-trained and well equipped with the most up-to-date weapons.

Circus Maximus (Rome)

The ancient Roman arena became well-known for the chariot races held here.

Theatre of Dionysus (Athens, 4th century BC)

The theatre that has a distinctive shape and excellent acoustics was situated at the side of the Acropolis in Athens.

The water cycle (intermediate)

Water on Earth is in a continuous state of change. The water cycle includes processes such as evaporation, precipitation, melting and freezing.

Faulting (intermediate)

Vertical forces can break up layers of rock into fault blocks, which then move vertically along the fracture planes.

Tectonic plates

Tectonic plates can move in relation to each other.

Pyramid of Djoser (Saqqara, 27th century BC)

The step pyramid, built in the 27th century BC, was the first pyramid in Egypt.

Ancient Roman aqueduct and road

The excellent road and aqueduct system covering the whole empire reflects well the development of the Roman civilisation.

Pantheon (Rome, 2nd century)

The ´Temple of all gods´ was built during the reign of the Roman Emperor Hadrian.

Mining at the time of the Industrial Revolution

At the end of the 18th century, mining boomed because of the great need for raw materials in the dynamically developing industry.

Chess games

Chess games can help to develop logic skills.

How does it work? - Hair dryer

This animation demonstrates the structure and operation of hair dryers.

Notable products

A spectacular demonstration of algebraic expressions.

The Dawn mission

Studying Ceres and Vesta will help us learn more about the early history of the Solar System and how rocky planets are formed.

Three-dimensional Cartesian coordinate system

3-dimensional Cartesian coordinate system with illustrations and exercises that develop spatial perception.

Machu Picchu (15th century)

The ancient Inca city, located in present-day Peru, is a World Heritage Site.

Electron configuration of calcium

This animation shows the electron configuration of the calcium atom.

Phase transitions

A phase transition is the change of a substance from one state of matter to another.

Structure of nitrogen molecules

This animation demonstrates the structure of nitrogen molecules, with one sigma and two pi bonds holding the atoms together.

Geographical discoveries (15th-17th century)

Legendary geographical discoveries at the beginning of the Modern Age had not only redrawn maps, but also had a truly diverse impact.

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