Bone structure

This scene explains the structure and functions of the bones.

How does it work: PET-CT

By positron emission tomography (PET), we can obtain visual information on the internal...

The adrenal glands

The adrenal glands are responsible for maintaining homeostasis and producing a rapid...

Quetzalcoatlus, a giant pterosaur

Quetzalcoatlus was one of the largest known flying animals of all time.

Bacteria (advanced)

Bacteria are unicellular organisms that have no cell walls and are a few micrometres in...

Types of waves

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

Navigational instruments of the past

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

The structure of prokaryotic and eukaryotic cells

There are two basic cell types: prokaryotic and eukaryotic cells.

Blood vessels

The three main types of blood vessels in the human body are the arteries, veins, and...

Zmyslové orgány

Organs that detect signals of the environment or of the body and transmit them to the...


The axolotl, also known as Mexican salamander, is an amphibian species that keeps its...

Južná otrokárska plantáž (USA, 19. storočie)

Pred americkou občianskou vojnou bolo pre južné štáty Ameriky typické využívanie otrokov...

American bison

The American bison is the largest land animal in North America.

Rimac Concept One

Rimac Automobili's first model is known as the world's fastest production electric vehicle.

Ukrainian Cossack (17th century)

Cossacks, members of independent military communities, played an important role in the...

Mir Castle Complex (17th century)

The Mir Castle Complex, situated in the town of Mir, Belarus was built in the...

Church of St John at Kaneo (Ohrid, 13th c.)

The Orthodox church, situated on a picturesque cliff, was named after John the Apostle

Hrad Gyula (16. storočie)

Tehlový hrad v juhovýchodnom Maďarsku, jeho najstaršie časti boli pravdepodobne postavené...

Kroje západnej Európy v 60-tych rokoch 20.storočia

Oblečenie odzrkadľuje životný štýl a kultúru obyvateľov daného obdobia a regiónu.

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