Due to its design and location, the Opera House of the Australian city is one of the most extraordinary opera houses in the world.
Hans Christian Andersen´s legendary character comes to life in a diorama.
Central European farmhouses in the 19th century had characteristic interior and exterior.
Otters are semi-aquatic predatory mammals.
The surface of a sphere consists of the set of points which are all at the same distance from a given point in space.
A prehistoric amphibian and an early representative of the Tetrapods, which became extinct 360 million years ago.
This animation demonstrates how microwave ovens work.
The Jumbo Jet is one of the best known airliners.
Woodwind instruments differ from brass instruments mainly in their reed.
Because of the military conflict in Sudan, millions of people had to flee their homes.
The Roman army, led by Flavius Aetius, stopped the Hun invasion led by king Attila
The characteristic colors of the common kingfisher aid the bird in catching its prey.
According to the Bible Noah was ordered by God to build a large vessel to save his family and the animals from the flood
Colorless, odorless gas, highly toxic to humans and animals in high concentration.
Marsh harriers are birds of prey found almost worldwide.
This animation demonstrates several types of prisms, from general to regular.
The Fighting Falcon is the most successful aircraft in the category of multi-purpose fighters.
Based on their life cycle, insects can be grouped into three categories: ametabolous, hemimetabolous or holometabolous insects.
An exercise about the volume and surface area of solids generated from a ´base cube´.
Saving energy and protecting the environment are important factors in the design of modern office buildings.