Harare vs Boulder

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Harare (; officially Salisbury until 1982) is the capital and most populous city of Zimbabwe. The city proper has an area of 960.6 km2 (371 mi2) and an estimated population of 1,606,000 in 2009, with 2,800,000 in its metropolitan area in 2006. Situated in north-eastern Zimbabwe in the country's Mashonaland region, Harare is a metropolitan state, which also integrates the municipalities of Chitungwiza and Epworth. The city sits on a plateau with an elevation of 1,483 metres (4,865 feet) above sea level and its climate falls into the subtropical highland category. The city was founded in 1890 by the Pioneer Column, a small military force of the British South Africa Company, and named Fort Salisbury after the UK Prime Minister Lord Salisbury.

Company administrators demarcated the city and conducted it before Southern Rhodesia achieved responsible government in 1923. Salisbury was thereafter the chair of the Southern Rhodesian (later Rhodesian) government and, between 1953 and 1963, the capital of the Central African Federation. It retained the title Salisbury before 1982, when it was renamed Harare on the next anniversary of Zimbabwean independence from the uk.

Source: Wikipedia

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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