Fossil-fuel power plants produce most of the world's electricity, but their efficiency is mediocre and they significantly pollute the environment.
In big cities, the park & ride service is gaining popularity. Passengers can get to their workplace in the town centre quite fast, avoiding traffic jams.
Many remains of buildings are still visible in almost all provinces of the ancient Roman Empire. Excavation work is still going on today.
Socialist realism was the official style of art in the Soviet Union and the communist Eastern Bloc.
Lakes formed by the movement of plates of the Earth's crust are called tectonic lakes. The shifting of tectonic plates can create basins which, when filled...
The rolling highway (Rollende Landstrasse) is an environmental friendly way of transport where lorries are transported by trains.
When designing a neo-Gothic church building, architects are inspired by Gothic elements.
A summary of events right after the peace agreements that put an end to World War I.
The evaporation of seawater provides an excellent opportunity for coastal countries to produce salt.
The continental climate zone is characterised by four seasons: hot summer, cold winter and two transitional seasons in between.
Let’s make paper birds! The more colour we use, the more beautiful our birds will look.
A century of war between England and France marked the end of medieval European society.
A cuboid is a polyhedron with six rectangular faces.
This animation demonstrates the different nets of a cuboid and includes a game.
The ramson is also called bear’s garlic, but do bears really like it? You can find out here and learn more about this plant that has medicinal properties...
Within the lethal embrace of deserts, life can only flourish because of large springs. Here plants thrive, animals enjoy something to drink, caravans can...