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Uranus

Uranus is the 7th planet from the Sun, a gas giant.

Vertebrate brain evolution

During the evolution of vertebrates the relative development of brain areas has changed.

Vision correction

Concave and convex lenses are used for the correction of short-sightedness and far-sightedness.

Pearls

Pearls, often used as gemstones, are the by-products of certain molluscs' protective mechanisms.

Venus

Venus is the 2nd planet from the Sun, the brightest object on the night sky (after the Moon).

Electric surface transport

Trolleybuses and trams are environment-friendly means of public transport

Sharks

A group of fish characterised by a cartilaginous skeleton, well-known species include the great white shark and the great hammerhead shark.

Soldiers of the American Civil War

The American Civil War was fought between the Confederacy and the Union.

Carbonic acid (H₂CO₃)

Colourless, odourless liquid produced by dissolving carbon dioxide in water.

Otto Lilienthal’s glider

The German engineer Otto Lilienthal was the first person to make successful flights with a glider designed by himself.

Evolution of the bicycle

The changing bicycle, at first mocked as a toy, is a true mirror of the technical development over the last three centuries.

Constructing shapes (3D)

Building 3D shapes into a given cube mesh with the help of several views.

Apatosaurus

Long-necked herbivorous dinosaur with a robust body.

Phonograph and gramophone

Edison´s invention records and plays sound from a cylinder, while Berliner´s apparatus uses a disc.

Ziggurat (Ur, 3rd millennium BC)

Ziggurats were typical terraced step pyramids used as temples in ancient Mesopotamia.

Transport networks

The animation presents the main air, water and land routes and transport hubs.

Limbic system

The limbic system plays an important role in forming emotions and in learning.

Greek and Macedonian phalanx formation

The phalanx formation was a military formation of the Greek heavy infantry.

Laptop computer, peripherals

A variety of peripherals can be used with laptop computers.

The Hungarian Crown Jewels

The best-known piece of the Hungarian Crown Jewels is the Holy Crown.

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