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  2. Waterfall - Wikipedia

    en.wikipedia.org/wiki/Waterfall

    Classical: Fall height is nearly equal to stream width, forming a square shape. [13] Curtain: Fall height is greater than the width of the falling water stream. [13] Plunge Fast-moving water falls vertically, completely losing contact with the bedrock surface. [17] Punchbowl Water is constricted as it falls and then spreads into a wider pool. [13]

  3. Length - Wikipedia

    en.wikipedia.org/wiki/Length

    Length is commonly understood to mean the most extended dimension of a fixed object. [1] However, this is not always the case and may depend on the position the object is in. Various terms for the length of a fixed object are used, and these include height, which is vertical length or vertical extent, width, breadth, and depth.

  4. Rule of thumb - Wikipedia

    en.wikipedia.org/wiki/Rule_of_thumb

    Rule of thumb. In English, the phrase rule of thumb refers to an approximate method for doing something, based on practical experience rather than theory. [1][2][3] This usage of the phrase can be traced back to the 17th century and has been associated with various trades where quantities were measured by comparison to the width or length of a ...

  5. Iguazu Falls - Wikipedia

    en.wikipedia.org/wiki/Iguazu_Falls

    The staircase character of the falls consists of a two-step waterfall formed by three layers of basalt.The steps are 35 and 40 metres (115 and 131 ft) in height. The columnar basalt rock sequences are part of the 1,000-metre-thick (3,300 ft) Serra Geral formation within the Paleozoic-Mesozoic Paraná Basin.

  6. Victoria Falls - Wikipedia

    en.wikipedia.org/wiki/Victoria_Falls

    Victoria Falls (Lozi: Mosi-oa-Tunya, "Thundering Smoke"; Tonga: Shungu Namutitima, "Boiling Water") is a waterfall on the Zambezi River, located on the border between Zambia and Zimbabwe. [ 2 ] It is one of the world's largest waterfalls, with a width of 1,708 m (5,604 ft). The region around it is inhabited by several species of plants and animals.

  7. Geometric design of roads - Wikipedia

    en.wikipedia.org/wiki/Geometric_design_of_roads

    The selection of lane width affects the safety, maximum capacity, and cost, of a highway. Safety is best at a width of 3.0 to 3.1 metres (9.8 to 10.2 ft) in urban settings, where both narrow (less than 2.8 metres (9 ft 2 in)) and wide (over 3.1 metres (10 ft)) lanes have higher crash risks.

  8. World Trade Center (1973–2001) - Wikipedia

    en.wikipedia.org/wiki/World_Trade_Center_(1973...

    The original World Trade Center (WTC) was a complex of seven buildings in the Financial District of Lower Manhattan in New York City. Built primarily between 1966 and 1975, it was dedicated on April 4, 1973, and was destroyed during the September 11 attacks in 2001. At the time of their completion, the Twin Towers, including the original 1 ...

  9. Niagara Falls - Wikipedia

    en.wikipedia.org/wiki/Niagara_Falls

    3. Watercourse. Niagara River. Average. flow rate. 85,000 cu ft/s (2,400 m 3 /s) Niagara Falls (/ naɪˈæɡərə, - ɡrə / ny-AGG-ər-ə, -⁠grə) is a group of three waterfalls at the southern end of Niagara Gorge, spanning the border between the province of Ontario in Canada and the state of New York in the United States.