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The medieval Arab inventor, Hassan Al Rammah designed the world's first operating torpedo.
The most popular European-made transport aircraft before World War II.
The mummified body of a man who probably lived in the Chalcolithic period, was found in one of the glaciers of the Alps.
Colourless, odourless gas, highly toxic to humans and animals in high concentration.
An exercise about the volume and surface area of solids generated from a ´base cube´.
This animation demonstrates the construction of motorcycles.
A floatplane (sometimes called hydroplane) is an aircraft capable of taking off not only dry land, but water too.
Combine harvesters are machines that harvest and thresh grain crops.
This animation demonstrates the structure and operation of impulse turbines.
One of the main units of Matthias Corvinus´ Black Army was the cavalry.
Dogs are the domesticated subspecies of grey wolves.
Colouring the vertices, edges and faces of a given cube according to the criteria specified in the exercise.
Medieval knights were vassals of feudal lords and fought on horseback in battles.
The Canadian helicopter is one of the most widely used helicopters in the world.
Three-dimensional assembly puzzle with solutions.
Large, extinct species of cats named after the shape of their large canine teeth.
One of the most important parts of a medieval castle was the Knights´ hall.
The animation shows the forms of government and official languages of the world´s countries.
This animation demonstrates how lifts work.
The British Royal Fleet led by Admiral Lord Nelson defeated the combined Franco-Spanish fleet in the naval battle during the Napoleonic Wars.
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