By positron emission tomography (PET), we can obtain visual information on our internal organs without making any surgical incisions.
This 3D scene presents the steps of the cement manufacturing process.
The range of applications of unmanned aerial vehicles ('drones') keeps growing.
The atomic bomb is one of the most destructive weapons in human history.
The largest bronze-age building complex of ancient Crete was probably the center of Minoan civilization.
The heart generates the electrical impulses necessary for its own operation. The graphic representation of the electrical activity of the heart is the...
Christopher Columbus' three-masted carrack, the Santa Maria was the flagship of his first, landmark voyage.
This animation demonstrates the parts of the head, the torso and the limbs.
A type of large freshwater crayfish widespread in Europe.
Unicellular eukaryotes living in freshwaters, capable of feeding autotrophically and heterotrophically.
This animation demonstrates the anatomy of spiders through the example of a common European species.
This animation introduces body parts on a male anatomical model.
The respiratory system is responsible for the intake of oxygen and the release of carbon dioxide.
Neurons transmit electrical signals via chemical and electrical synapses.
Viruses consist of protein and DNA or RNA, they reprogram infected cells to produce more viruses.
A series of fortifications built to prevent incursions from northern nomadic groups.
Connective tissues include loose and dense connective tissues, adipose tissue, blood, tendon and bone tissue.
The ancient city of Babylon was built on the banks of the Euphrates River in Mesopotamia.
When producing sound, the vocal cords are vibrated by the air flowing out of the lung.
This animation shows the symptoms and treatment of secretory otitis media.