Boulder vs Zurich

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In geology, a boulder is a rock fragment with size greater than 256 millimetres (10.1 in) in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive. In common usage, a boulder is too large for a person to move. Smaller boulders are usually just called rocks (American English) or stones (In British English a rock is larger than a boulder). The word boulder is short for boulder stone, from Middle English bulderston or Swedish bullersten.In places covered by ice sheets during Ice Ages, such as Scandinavia, northern North America, and Siberia, glacial erratics are common. Erratics are boulders picked up by ice sheets during their advance, and deposited when they melt.

They are called "erratic" because they typically are of a different rock type than the bedrock on which they are deposited. One of them is used as the pedestal of the Bronze Horseman in Saint Petersburg, Russia. Some noted rock formations involve giant boulders exposed by erosion, such as the Devil's Marbles in Australia's Northern Territory, the Horeke basalts in New Zealand, where an entire valley contains only boulders, and The Baths on the island of Virgin Gorda in the British Virgin Islands. Boulder-sized clasts are found in some sedimentary rocks, such as coarse conglomerate and boulder clay. The climbing of large boulders is called bouldering.

Source: Wikipedia

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Zürich (Alemannic German: Züri; French: Zurich; Italian: Zurigo; Romansh: Turitg) is the largest city in Switzerland, and the capital of the canton of Zürich. It is located in north-central Switzerland, at the northwestern tip of Lake Zürich. As of January 2020, the municipality has 434,335 inhabitants, the urban area (agglomeration) 1.315 million (2009), and the Zürich metropolitan area 1.83 million (2011). Zürich is a hub for railways, roads, and air traffic. Both Zurich Airport and railway station are the largest and busiest in the country. Permanently settled for over 2,000 years, Zürich was founded by the Romans, who, in 15 BC, called it Turicum. However, early settlements have been found dating back more than 6,400 years (although this only indicates human presence in the area, and not the presence of a town that early). During the Middle Ages, Zürich gained the independent and privileged status of imperial immediacy and, in 1519, became a primary centre of the Protestant Reformation in Europe under the leadership of Huldrych Zwingli.

The official language of Zürich is German, but the main spoken language is the local variant of the Alemannic Swiss German dialect, Zürich German. Many museums and art galleries can be found in the city, including the Swiss National Museum and Kunsthaus. Schauspielhaus Zürich is considered to be one of the most important theatres in the German-speaking world.Zürich is among the world's largest financial centres despite having a relatively small population. The city is home to many financial institutions and banking companies. Monocle's 2012 "Quality of Life Survey" ranked Zürich first on a list of the top 25 cities in the world "to make a base within". In 2019 Zürich was ranked among the ten most liveable cities in the world by Mercer together with Geneva and Basel.

Source: Wikipedia