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121Beijing city fortifications — The city wall of Beijing was a fortification built around 1435. It was 23.5 km long. The thickness at ground level was 20m and the top 12m. The wall was 15m high, and it had nine gates. This wall stood for nearly 530 years, but in 1965 it was… …
122Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …
123respiration, human — ▪ physiology Introduction the process by which oxygen is taken up and carbon dioxide discharged. The design of the respiratory system The human gas exchanging organ, the lung, is located in the thorax, where its delicate tissues are… …
124doline — ; sinkhole A basin or funnel shaped hollow in limestone, ranging in diameter from a few meters up to a kilometer and in depth from a few to several hundred meters. Some dolines are gentle grassy hollows; others are rocky cliff bounded… …
125fall in — verb 1. break down, literally or metaphorically (Freq. 3) The wall collapsed The business collapsed The dam broke The roof collapsed The wall gave in The roof finally gave under the weight of the ice …
126Mount Vesuvius — This article is about the mountain/volcano in Italy. For other uses, see Vesuvius (disambiguation). Mount Vesuvius Monte Vesuvio …
127Timeline for the day of the September 11 attacks — The September 11, 2001 attacks, in addition to being a unique act of aggression, constituted a media event on a scale not seen since the advent of civilian global satellite links, round the clock television news organizations and the instant… …
128Mbombela Stadium — Africa s Wildest Stadium Location Masafeni Rd. Nelspruit …
