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The Moon

The Moon is the Earth's only natural satellite

The Panama Canal

The Panama Canal is an artificial waterway created to shorten shipping routes between the Pacific Ocean and the Atlantic Ocean.

Voice production

When producing sound, the vocal cords are vibrated by the air flowing out of the lung.

Nose, the mechanism of smelling

Olfactory receptors produce electric signals when stimulated by odours.

The human brain

The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum.

Parts of the human brain

The main parts of the human brain are the brain stem, the cerebellum, the diencephalon, and the cerebrum, which is divided into lobes.

Electric bell

Mechanical bell that functions by means of an electromagnet.

Deforestation

Deforestation has a negative impact on the environment.

Mechanism of taste reception

Taste receptors convert chemical stimuli into electric signals.

Carboniferous flora and fauna

This animation presents some animals and plants that lived between the Devonian and Permian periods (358–299 million years ago).

Evaporation and boiling

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

DNA

Carrier of genetic information in cells.

Navigational instruments of the past

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

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.

Connective tissues

Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.

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.

Types of waves

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

Anatomy of the small intestine

The longest part of the digestive system, where most of the digestion and absorption takes place.

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