The medieval Arab inventor, Hassan Al Rammah designed the world's first operating torpedo.
King Darius as well as Xerxes built pontoon bridges across the Bosphorus for the Persian army.
Marsh harriers are birds of prey found almost worldwide.
A medieval glider constructed by Abbas Ibn Firnas.
This animation demonstrates how microwave ovens work.
Change of light conditions in different seasons. Measuring height using shadows.
The mummified body of a man who probably lived in the Chalcolithic period, was found in one of the glaciers of the Alps.
The Rietveld Schröder House, located in the town of Utrecht in the Netherlands, can be considered a forerunner of modern houses.
This animation demonstrates the construction of motorcycles.
One of the best known species of spiders, often kept as pets. Its bite is not fatal for humans.
This animation demonstrates how electric steam irons work.
This animation presents animals commonly kept as livestock and the primal cuts of their meat.
A force can be measured by measuring the twisting of the torsion wire in a torsion balance.
Simple harmonic motion can be considered to be the one-dimensional projection of uniform circular motion.
The Ottoman fleet suffered a catastrophic defeat by the fleet of the Holy League.
The battle ended with the victory of William the Conqueror´s Norman army over the English.
Living fossil, important stage in the evolution of tetrapods.
Slavic warriors were greatly respected throughout Europe in the Middle Ages.
An exercise about the volume and surface area of solids generated from a ´base cube´.
Due to its design and location, the Opera House of the Australian city is one of the most extraordinary opera houses in the world.