The Internet allows us to send data quickly to large distances.
The information gathered by the eye is misinterpreted by the brain.
The magnificent capital of the Aztec Empire astonished even the Spanish Conquistadors.
Typical settlements of the Norsemen were not only established in Scandinavia, they appeared on distant areas as well.
In transmission systems, the engine torque is modified by reducing or increasing rotational speed.
The army of Alexander the Great successfully deployed siege towers in its attacks against fortifications.
A series of fortifications built to prevent incursions from northern nomadic groups.
The excellent road and aqueduct system covering the whole empire reflects well the development of the Roman civilisation.
Yuri Gagarin became the first human in space on 12 April 1961.
The seminomadic lifestyle of the Bedouin adapted to the climatic and environmental conditions of the desert.
Skeletal muscles form the active part of the locomotor system: they move the bones they are attached to.
Formula 1 is the highest class and most popular type of motor racing.
The large intestine is the last section of our digestive track.
African villages adapt to the natural environment well and reflect of the culture of local tribes.
One of the most modern means of transport is the Maglev, capable of travelling at speeds of over 400 km/h.
The American inventor presented his invention revolutionising telecommunication at New York University in 1837.
Mechanical bell that functions by means of an electromagnet.
The device that transmits human voice as electrical signals was invented by Bell in 1876.
Practice the Hungarian alphabet and form words from the letters.
Machines converting the energy of flowing or falling water into useful forms of power were already in use in the Middle Ages.