This animation demonstrates the functioning of the 3 basic types of water tap.
The Rutherford Experiment proved the existence of positively charged atomic nuclei. The results led to the elaboration of a new atomic model.
African villages adapt to the natural environment well and reflect of the culture of local tribes.
Yuri Gagarin became the first human in space on 12 April 1961.
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 animation demonstrates the development of the axe throughout archaeological periods.
One of the best known buildings in the world, this is the residence and office of the President of the United States.
Hình ảnh này minh họa cấu trúc phân tử vi mô và cơ chế của cơ.
Designated as the first National Treasure of South Korea, the Namdaemun was one of the major gateways of Seoul's Medieval city walls.
The Troll A is an offshore natural gas platform, the largest offshore platform ever built: it rises about 170 metres above water level, weighs 656,000...
Combining a conventional internal combustion engine propulsion system with an electric propulsion system reduces emission.
A hydrothermal vent is a fissure in the planet's surface through which geothermally heated water erupts.
This animation demonstrates the structure and operation of CT scanners.
The Doric, Ionic and Corinthian order of columns are different in size and ornamentation as well.
According to Homer’s epic, Odysseus’ Stratagem caused the loss of Troy.
In transmission systems, the engine torque is modified by reducing or increasing rotational speed.
A wooden church built in the 12th-13th centuries, the best preserved of Norway´s stave churches.
The three important laws describing planetary motion were formulated by Johannes Kepler.
The animation shows the two-seater Lunar Rover used in the Apollo 15 mission