Lightning is a sudden electrostatic discharge accompanied by a sound known as thunder.
This animation demonstrates geometric rotation, a type of geometric transformation both in plane and space.
Life magazine picked Gutenberg's invention of mechanical movable type printing as the most important event of the second millennium.
This animation demonstrates geometric translation in both plane and space.
The diameter of the Sun is about 109 times that of the Earth. Most of its mass consists of hydrogen.
This animation demonstrates geometric reflection, a type of geometric transformation both in plane and space.
The Earth is composed of several spherical layers.
The orbits of the 8 planets in our Solar System are elliptical.
According to Homer’s epic, Odysseus’ Stratagem caused the loss of Troy.
The rise and drop of sea levels caused by the gravitational force of the Moon.
The Earth is a rocky planet with a solid crust and oxygen in its atmosphere.
The ´Temple of all gods´ was built during the reign of the Roman Emperor Hadrian.
Space probes and Mars rovers examine the structure of Mars and possible traces of life.
African villages adapt to the natural environment well and reflect of the culture of local tribes.
Mechanical bell that functions by means of an electromagnet.
Practice the Hungarian alphabet and form words from the letters.
This animation demonstrates the most important relief features, surface waters and their relevant symbols.
This bizarre-looking fish uses its bioluminescent lure to catch its prey. The animation explains how it works.
Physical properties, as well as the flora and fauna of the ocean change with depth.
Tsunami waves are very high waves of immense destructive power.