This animation demonstrates the most important seas and bays.
Hovercraft are capable of travelling at high speed above the surface of water.
This animation demonstrates the development of freight transport, from horse-drawn carts to modern lorries.
The US Marine Corps is an important branch of the US Armed Forces, with about 200 thousand, specially trained members.
A Romanesque style Benedictine church with a special gateway, built in the 13th century in Hungary.
Blood vessels in fishes' gills absorb oxygen and release carbon dioxide.
In 1946 a Hungarian scientist was the first person to detect radar echoes from the Moon.
The Arch of Triumph was built at the entrance of the Forum Romanum, to commemorate Emperor Titus’ victory in the Siege of Jerusalem.
Ancient Greek heavy infantryman.
The dreaded warriors of the Mongol Empire helped to make it one of the largest empires in history.
The most popular European-made transport aircraft before World War II.
The first paddle steamer in Hungary entered service in 1846.
Leonardo's creative legacy also includes several projects related to bridges. This unusual swing bridge allowed for undisturbed water traffic.
A colourless, viscous liquid, a highly corrosive, strong acid used in several industrial processes.
Potassium permanganate is used as a disinfectant.
Bin lorries play an important role in the life of towns and cities.
The mechanical wing is one of the masterpieces among Leonardo's sketches related to aviation.
A light yellow compound formed in the reaction of silver nitrate and potassium iodide.
The polymath thought that if a screw-like structure can rotate fast enough, it will 'drill' into the air and fly.
Common salt (or table salt) is one of the most important sodium compounds, indispensable for living organisms.