Oxygen (O₂) (intermediate)

A colourless, odourless gas, an important component of the atmosphere, indispensable to...

Nitrogen (N₂) (intermediate)

A colourless, odourless, non-reactive gas, it constitutes 78.1% of Earth´s atmosphere.

Arch of Titus (Rome, 1st century)

The Arch of Triumph was built at the entrance of the Forum Romanum, to commemorate...

Belgrade (15th century)

The castle of Belgrade (Nándorfehérvár) was one of the most important components in the...

Greek hoplite (5th century BC)

Ancient Greek heavy infantryman.

Ara Pacis Augustae (Rome, 1st century BC)

The Altar of Peace, commissioned during the reign of Augustus, was one of the most...

Air pollution

This animation demonstrates the main sources of air pollution: Agricultural, industrial...

Sights of the world

A game about sights around the world.

Boeing 747 (1969)

The Jumbo Jet is one of the best known aircrafts.

Cromwell´s Ironsides (17th century)

The Ironsides were members of the Parliamentarian cavalry formed by Oliver Cromwell...

Carbon dioxide (CO₂) (intermediate)

Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.

Euler's polyhedron formula

The theorem formulated by Leonhard Euler describes one of the basic properties of convex...

Solids of revolution (rectangle)

Rotating a rectangle around its axes of symmetry or around its sides results in solids of...

Light and shadow

By varying the position of the light source, you can examine the shades projected onto...

Ring closure of glucose

The animation demonstrates the process of ring closure of open-chain glucose into alpha-...

Persian monarch (5th century BC)

Ancient Persian monarchs were famous for the size of their empire and their wealth.

Arab Caliph (7th century)

Caliphs, considered successors of the Prophet Muhammad, were the most important religious...

Medieval Christian king

Medieval kings were typically depicted sitting on their thrones, wearing a crown and the...

Wine region

Wines of the Tokaj wine-growing region are well known worldwide.

Zulu tribal chief

African tribes have their own distinct cultures.

Added to your cart.