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The steppe eagle is a large eagle species that inhabits steppes and mountains in Asia.
Learn about the significance of regeneration in the animal kingdom by examining various examples.
It is an echinoderm living on the sea floor that plays an important role in the circulation of substances.
Sea stars are predatory echinoderms known for their exceptional regenerative abilities.
The 3D scene shows the 56 member states of the Commonwealth, many of which were formerly part of the British Empire.
A colorless, odorless, non-reactive gas, it constitutes 78.1% of Earth´s atmosphere.
A compound ion produced from carbonic acid by releasing protons.
A colorless, odorless gas, an important component of the atmosphere, indispensable to sustain terrestrial life.
Colourless, odourless gas, highly toxic to humans and animals in high concentration.
Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.
The castle of Eger got its final shape and became an important component in the new chain of border forts in the 16th century.
Market towns became the most common type of towns in the Kingdom of Hungary by the Late Middle Ages.
Burj Al Arab, the world's only seven-star luxury hotel is located in the United Arab Emirates.
Crystalline allotrope of elemental carbon, the hardest known natural substance.
The small passenger aircraft is designed for speed, convenience and economical operation.
The iron lattice tower, erected for the 1889 World Fair, became the symbol of the capital city of France.
A floatplane (sometimes called hydroplane) is an aircraft capable of taking off not only dry land, but water too.
Rotating a rectangle around its axes of symmetry or around its sides results in solids of revolution.
This animation demonstrates several types of prisms, from general to regular.
A Romanesque style Benedictine church with a special gateway, built in the 13th century in Hungary.
The most popular European-made transport aircraft before World War II.
An exercise about the volume and surface area of solids generated from a ´base cube´.