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  2. Viscosity - Wikipedia

    en.wikipedia.org/wiki/Viscosity

    Viscosity is a measure of a fluid's rate-dependent resistance to a change in shape or to movement of its neighboring portions relative to one another. [1] For liquids, it corresponds to the informal concept of thickness; for example, syrup has a higher viscosity than water. [2]

  3. Isle of Man TT Mountain Course - Wikipedia

    en.wikipedia.org/wiki/Isle_of_Man_TT_Mountain_Course

    For the 1919 Isle of Man TT, changes were made to the Mountain Course and competitors turned left at Cronk-ny-Mona and followed the primary A18 Mountain Road to Governor's Bridge with a new start/finish line on Glencrutchery Road which lengthened the course from the pre-World War I length of 37.50 mi (60.35 km) to 37.75 mi (60.75 km).

  4. History of the metre - Wikipedia

    en.wikipedia.org/wiki/History_of_the_metre

    The length of the metre was established, in relation to the toise of the Academy also called toise of Peru, at 3 feet 11.44 lines, taken at 13 degrees of the temperature scale of René-Antoine Ferchault de Réaumur in use at the time. This value was set by legislation on 7 April 1795. [66]

  5. Tree measurement - Wikipedia

    en.wikipedia.org/wiki/Tree_measurement

    In this case a better option would be to measure the standard girth measurement at 4.5 feet above ground level on the high side of the tree and note this in the measurement description. If measuring a mountaintop forest of stunted trees only six feet tall, a girth measurement made at 4.5 feet would be meaningless.

  6. Scientific method - Wikipedia

    en.wikipedia.org/wiki/Scientific_method

    The history of scientific method considers changes in the methodology of scientific inquiry, not the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the primacy of ...

  7. Diving cylinder - Wikipedia

    en.wikipedia.org/wiki/Diving_cylinder

    An especially common rental cylinder provided at tropical dive resorts is the "aluminium-S80" which is an aluminum cylinder design with an internal volume of 0.39 cubic feet (11.0 L) rated to hold a nominal volume of 80 cubic feet (2,300 L) of atmospheric pressure gas at its rated working pressure of 3,000 pounds per square inch (207 bar). [9]

  8. India - Wikipedia

    en.wikipedia.org/wiki/India

    A large-scale loss of life and an unprecedented migration accompanied the partition. [61] India has been a federal republic since 1950, governed through a democratic parliamentary system. It is a pluralistic, multilingual and multi-ethnic society. India's population grew from 361 million in 1951 to almost 1.4 billion in 2022. [62]

  9. Illinois - Wikipedia

    en.wikipedia.org/wiki/Illinois

    It was topped by a structure thought to have measured about 105 ft (32 m) in length and 48 ft (15 m) in width, covered an area 5,000 sq ft (460 m 2), and been as much as 50 ft (15 m) high, making its peak 150 ft (46 m) above the level of the plaza.