The desalination process produces drinking water from seawater.
The Voyager space probes were the first man-made objects to leave the Solar System. They gather data about outer space and carry information about humanity.
This 3D scene presents the steps of the cement manufacturing process.
The main sources of water pollution are industry, agriculture and urban areas.
A metropolis is a large city with a population of over 1 million people.
The double-decked, wide-bodied passenger aircraft can carry more then 500 passengers.
Deforestation has a negative impact on the environment.
The New Horizons space probe was launched in 2006, with the objective to study Pluto and the Kuiper Belt.
Neil Armstrong, one of the crew members of Apollo 11 was the first man to set foot on the Moon.
The Panama Canal is an artificial waterway created to shorten shipping routes between the Pacific Ocean and the Atlantic Ocean.
Space probes and Mars rovers examine the structure of Mars and possible traces of life.
Nuclear power plants convert the energy released during nuclear fission into electric power.
This animations demonstrates the exterior and interior construction of cars, as well as their operation.
Machines converting the energy of flowing or falling water into useful forms of power were already in use in the Middle Ages.
At the end of the 18th century, mining boomed because of the great need for raw materials in the dynamically developing industry.
Aluminium smelting is the process of extracting aluminium from alumina by electrolysis.
The huge dam built on the Colorado river in the U.S. was named after a former American President.
The train operates between Paris and southern Germany, its cruise speed is 320 km/h (199 mph).
River locks make rivers with great level differences safe for boating.
Commercial maritime routes of container ships form a global network.