The flowers of angiosperms

The animation demonstrates the different flower types of angiosperms.

Yuri Gagarin's journey to outer space (1961)

Yuri Gagarin became the first human in space on 12 April 1961.

Saint Alexander Nevsky Cathedral (Sofia, 20th century)

Built in Neo-Byzantine style, this Orthodox cathedral is one of the symbols of the Bulgarian capital city.

Chess games

Chess games can help to develop logic skills.

Body parts

This animation introduces body parts on a male anatomical model.

Nuclear power plant

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

Marie Curie's laboratory

Marie Curie, the only person to win the Nobel Prize in two different sciences, is probably the most famous woman in the history of science.

The heart

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

Electron configuration of calcium

This animation shows the electron configuration of the calcium atom.

Layers of the skin; cutaneous senses

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

Phase transitions

A phase transition is the change of a substance from one state of matter to another.

Moon landing: 20 July 1969

Neil Armstrong, one of the crew members of Apollo 11 was the first man to set foot on the Moon.

Melk Abbey (Austria)

The 900 years old Benedictine abbey is situated in Melk, on the right bank of the Danube.

Structure of nitrogen molecules

This animation demonstrates the structure of nitrogen molecules, with one sigma and two pi bonds holding the atoms together.

Development of the atomic model

Major phases in the history of theories and views about the structure of the atom.

Transparency

This animation explains transparency and opacity, the principle of radiography, and the light-absorbing properties of materials.

Patent-Motorwagen (Karl Benz, 1886)

The Benz Patent-Motorwagen is widely regarded as the first vehicle propelled by an internal combustion engine.

Moai (Easter Island, 16th century)

This Pacific island is famous for its unique monolithic human figures.

Human skeleton

Our body´s internal support structure to which skeletal muscles are attached.

Chichen Itza (12th century)

The legendary city of the Mayan-Toltec Empire was located on the territory of present-day Mexico.

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