The development of lakes

Standing bodies of water can form in depressions on the surface by both endogenic and exogenic forces, as well as by human activity.

Melk Abbey (Austria)

The 900 years old Benedictine abbey is situated in Melk, on the right bank of the Danube.

Oral cavity, pharynx and esophagus

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

Gravitational waves (LIGO)

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

Transparency

This animation explains transparency and opacity, the principle of radiography, and the light-absorbing properties of materials.

Diocletian's Palace (Split, Croatia)

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

The anatomy of leaves

This animation presents the main types of leaves and the differences between monocot and dicot leaves.

Neolithic settlements

As a result of the revolutionary advances in the Neolithic, settling human communities established the first lasting settlements.

Characteristics of sound waves

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

Layers of the ocean

Physical properties, as well as the flora and fauna of the ocean change with depth.

Altitudinal zonation

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

Teotihuacan (4th century)

Majestic even in its ruins, this city was the largest and most populous settlement in the pre-Columbian Americas.

Interesting astronomy facts

This animation presents some interesting facts in the field of astronomy.

Vegetative plant organs

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

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.

The Black Death (Europe, 1347–1353)

The bacterial disease known as the bubonic plague is one of the deadliest infectious diseases in the history of mankind.

Theater of Pompey (Rome, 1st c. B.C.)

The building commissioned by Pompey the Great was the first permanent theater in Ancient Rome.

Napoleonic Wars

Napoleon I, who crowned himself emperor, was one of the most outstanding military commanders in history.

Physicists who changed the world

These great scientists had a tremendous impact on the advancement in physics.

Earthquake

An earthquake is one of the most devastating natural phenomena.

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