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Polümaat Leonardo oli veendunud, et kui kruvi konstruktsioon sobiva kiirusega pöörlema panna, siis tõuseb see lendu.
Leonardo tööde hulgas on mitmeid sildadega seotud visandeid. See eriline sild võimaldas laevadel segamatult sõita.
Selle haruldaselt keerulise leiutise eesmärk oli võimalikult täpselt jäljendada linnulennu erinevaid faase.
Leonardo loomingu hulka kuuluvad erinevate suurtükkide kavandid.
Leonardo ei olnud mitte ainult maalikunstnik, vaid on oma jälje ajalukku jätnud ka võimeka sõjainsenerina.
Machines converting the energy of flowing or falling water into useful forms of power were already in use in the Middle Ages.
Several ingenious instruments have been invented over the centuries to help in navigating the seas.
Machines converting the energy of wind into useful forms of power were already in use in the Middle Ages.
The Emperor of the vast Far-Eastern empire was the lord of life and death.
The Crow are Native Americans who inhabited the Yellowstone River valley.
The ruler of the vast Mongol Empire was the Khan.
The Byzantine Emperor was the head of the Byzantine Empire, the direct continuation of the Roman Empire.
The most important weapons of medieval Arab warriors were the bow and the sword.
The Incas´ rudimentary weapons were inadequate in their struggle against the Spanish Conquistadors.
The building complex was one of the most important Benedictine abbeys for centuries.
This animation shows the hierarchical structure of the Medieval Christian church.
The Hussites mastered the use of war wagons in the 15th century.
The legendary Mongol ruler Genghis Khan established a huge empire through his conquests.
A geisha is a traditional Japanese entertainer whose skills include performing classical music and dance.
The torii is a traditional Japanese gate built at the entrance of shrines.