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  2. Wilford Gyroplane - Wikipedia

    en.wikipedia.org/wiki/Wilford_Gyroplane

    Its rotor had a diameter of 25 ft (7.6 m), though the broad blades began about 1 ft 3 in (0.38 m) from their common vertical mast. Each blade had an area of about 15 sq ft (1.4 m 2) and an aspect ratio of 8.4. [1] Opposing pairs of blades were rigidly fixed together but free to rotate on their common axis.

  3. Sylhet - Wikipedia

    en.wikipedia.org/wiki/Sylhet

    31.6 (88.9) 32.2 (90.0) 32.5 (90.5) ... Sylhet has a sex ratio of 861 females to 1000 males and a literacy rate of 67.8%. ... signed a Memorandum of Understanding to ...

  4. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    The number π (/ p aɪ / ⓘ; spelled out as "pi") is a mathematical constant, approximately equal to 3.14159, that is the ratio of a circle's circumference to its diameter.It appears in many formulae across mathematics and physics, and some of these formulae are commonly used for defining π, to avoid relying on the definition of the length of a curve.

  5. Demographics of Rwanda - Wikipedia

    en.wikipedia.org/wiki/Demographics_of_Rwanda

    20.6 28.3 8.20 124.9 44.07 1964 3 264 000 157 000 58 000 99 000 48.0 17.8 30.3 8.20 122.6 48.24 1965 3 349 000 159 000 59 000 100 000 47.5 17.6 29.9 8.20 122.6 48.28 1966 3 444 000 163 000 61 000 102 000 47.3 17.6 29.7 8.20 123.1 48.17 1967 3 549 000 168 000 62 000 106 000 47.4 17.6 29.8 8.20 123.9

  6. Antarctic minke whale - Wikipedia

    en.wikipedia.org/wiki/Antarctic_Minke_Whale

    The heaviest caught in the Antarctic were a 9 metres (29.5 feet) female that weighed 10.4 metric tons (11.5 short tons) [25] and an 8.4 metres (27.6 feet) male that weighed 8.8 metric tons (9.7 short tons). [26] At physical maturity, females average 8.9 metres (29.2 feet) and males 8.6 metres (28.2 feet).

  7. Geography of Singapore - Wikipedia

    en.wikipedia.org/wiki/Geography_of_Singapore

    The highest recorded temperature is 37.0 °C (98.6 °F), which was recorded twice on 17 April 1983 and 13 May 2023. [5] The lowest recorded temperature was 19.4 °C (66.9 °F) on 14 February 1989 at Paya Lebar , although there is an unofficial record low of 18.4 °C (65.1 °F) on an unspecified date.

  8. Pythagoras - Wikipedia

    en.wikipedia.org/wiki/Pythagoras

    [5] [6] [7] The earliest sources on Pythagoras's life are brief, ambiguous, and often satirical. [ 4 ] [ 8 ] [ 9 ] The earliest source on Pythagoras's teachings is a satirical poem probably written after his death by the Greek philosopher Xenophanes of Colophon ( c. 570 – c. 478 BC), who had been one of his contemporaries.

  9. Mazda Capella - Wikipedia

    en.wikipedia.org/wiki/Mazda_Capella

    The fourth-generation Capella was released in May 1987. [32] It used the updated GD platform and some versions remained in production in Japan until 1996. Engines were new, though they still emphasized torque rather than outright power. Most of the world received 1.6, 1.8, 2.0, and 2.2 (non-turbo) engines.