Soviet labour camp (1930s)

Soviet labour camps (Gulags) were located far from inhabited areas.

Diocletian's Palace (Split, Croatia)

The fortress-like palace was built by Roman Emperor Diocletian on the coast near his home town.

Characteristics of sound waves

This animation explains the most important characteristics of waves through sound waves.

Ocean currents

The Great ocean conveyor is a planet-wide system of ocean currents, which has a great influence on the Earth´s climate.

3D puzzle

This exciting and colourful game is designed to develop spatial perception. You can check your solutions using isometric views.

Solids of revolution

Rotating a geometric shape around a line within its geometric plane as an axis results in a solid of revolution.

How does it work? - Gearbox

In transmission systems, the engine torque is modified by reducing or increasing rotational speed.

Altitudinal zonation

In mountainous areas the climate, soil properties, the flora and fauna change depending on elevation.

Tower of London (16th century)

The intriguing history of this historic castle spans nearly a thousand years.

Greek gods

The Olympian gods in ancient Greek mythology were as diverse as humans.

Gravitational waves (LIGO)

Massive accelerating or orbiting bodies cause ripples in spacetime. These are called gravitational waves.

Oral cavity, pharynx and oesophagus

The first section of the gastrointestinal tract comprises the oral cavity, the pharynx and the oesophagus.

Human teeth

Humans have 4 types of teeth: incisors, canines, premolars and molars.

Galileo Galilei's workshop

Galileo Galilei's scientific achievements contributed greatly to the advancement of physics and astronomy.

Types of waves

Waves play an extremely important role in many areas of our lives.

Code of Hammurabi

The Code of Hammurabi is the emblem of the Mesopotamian civilisation; it contains 282 laws carved into a basalt stele.

The life-cycle of the Solar System

The formation of the Sun and the planets started with the contraction of a dust cloud about 4.5 billion years ago.

Prenatal development

This animation demonstrates the development of the human embryo and foetus.

The anatomy and functions of the liver

The liver is a vital organ that plays an important role in the digestion of fats, detoxification and metabolism.

Vegetative plant organs

These organs are vital for the survival and development of plants.

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