The life cycle of vertebrates

The life cycle of vertebrates starts with the production of the reproductive cells of an individual and ends with the production of the reproductive cells...

Navigational instruments of the past

Several ingenious instruments have been invented over the centuries to help in navigating the seas.

How does it work? - Turbojet

This animation demonstrates how a turbojet engine works.

Theatre of Pompey (Rome, 1st c. BC)

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

Gravitational waves (LIGO)

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

Transport processes

This animation explains active and passive transport processes occurring through cell membranes

Nikola Tesla's laboratory (Shoreham, USA)

This physicist-inventor and electrical engineer who mainly dealt with electrotechnics was undoubtedly one of the most brilliant figures of the second...

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.

DNA

Carrier of genetic information in cells.

Characteristics of sound waves

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

Mount Rushmore (USA)

Carved into a granite cliff, the sculptures of the Mount Rushmore National Memorial depict four great United States presidents.

Deforestation

Deforestation has a negative impact on the environment.

Amino acids

Amino acids are the monomers of proteins.

The spread of Homo sapiens on Earth

The 'wise man' originated in Africa and dispersed throughout most of the continents.

Veiled chameleon

Chameleons are reptiles with an ability to change their colours.

Diocletian's Palace (Split, Croatia)

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

Layers of forests

The layers of different types of forests may vary.

Teotihuacan (4th century)

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

Neolithic settlements

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

Evaporation and boiling

What happens in a liquid during evaporation and boiling? What does its boiling point depend on?

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