The golden ratio is a mathematical ratio that is commonly found in nature and arts.
Fossil-fuel power plants produce most of the world's electricity, but their efficiency is mediocre and they significantly pollute the environment.
Blueberries are a popular ingredient of jams, fruit soups or fruit salads, cake toppings or fillings.
One of the most visited regions of Romania renowned for its numerous medieval buildings, church buildings, monuments and natural beauties.
Metro is an indispensable way of public transport in a metropolis. It is the fastest way to reach one’s destination within the city.
Buttes keep the evidence of previous volcanic activities. Their material is mainly of basalt. Their shape can often be coffin-like, or flat on top with a...
The climatic snow line is the point above which snow and ice cover the ground throughout the year. The actual snow line may seasonally be significantly lower.
This video is about the taiga stretching throughout the northern regions, characterised by coniferous forests, cool climate and sparse population.
Mining is a crucially important industry, but its long-term consequences, for example the destruction of the landscape, are often ignored.
Lignite is a sedimentary rock that still shows traces of plant structure. It is a coal with lower heating value.
During the course of history, bridges were points of strategic importance. Today they have a significant role in infrastructure.
History is not always based on bare facts, sometimes serious research needs to be done to explore our past. People who do that are called archaeologists,...
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.
Prolonged war is a great burden both for military personnel and civilians.
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...
When designing a neo-Gothic church building, architects are inspired by Gothic elements.
Several labour camps were established in the communist Eastern Bloc, the existence of which was kept secret for decades.
The quality of life in industrial cities is often poor, and air pollution is high. Establishing industrial parks could provide the solution to these problems.