Viruses consist of protein and DNA or RNA, they reprogram infected cells to produce more...

Santa Maria (15th century)

Christopher Columbus' three-masted carrack, the Santa Maria was the flagship of his...

Structure of skeletal muscles

This animation demonstrates the fine molecular structure and mechanism of muscles.

Ancient Roman domus

Wealthy citizens in ancient Rome owned large houses with varied layouts of several rooms.

Ancient Greek house

The average house in Ancient Greece had a rectangular, geometrical floor plan and two...

Synaptic transmission

Neurons transmit electrical signals via chemical and electrical synapses.

Stonehenge (Great Britain, Bronze Age)

The world famous monument in England still poses mysteries for archeologist.

Parts of the human body

This animation demonstrates the parts of the head, the torso and the limbs.

Knossos Palace (2nd millenium B.C.)

The largest bronze-age building complex of ancient Crete was probably the center of...

The electrical conduction system of the heart

The heart generates the electrical impulses necessary for its own operation. The graphic...

Layers of the skin; cutaneous senses

The skin is the soft outer covering of our body, its three layers are the epidermis, the...

Greenhouse effect

Human activity increases the greenhouse effect and leads to global warming.

From the Stone Age to the Iron Age

This animation demonstrates the development of the ax throughout archeological periods.

Nuclear power plant

Nuclear power plants convert the energy released during nuclear fission into electric power.

Life cycle of mosses and ferns

This animation compares the life cycles of mosses and ferns, helping to understand the...

The White House (Washington, D.C., 1800)

One of the best known buildings in the world, this is the residence and office of the...

The Rutherford experiment

The Rutherford Experiment proved the existence of positively charged atomic nuclei. The...

The heart

The heart is the central pump of the cardiovascular system beating several billion times...

Nervous system

The central nervous system consists of the brain and the spinal cord, the peripheral...

Mechanism of taste reception

Taste receptors convert chemical stimuli into electric signals.

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