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  2. List of examples of lengths - Wikipedia

    en.wikipedia.org/wiki/List_of_examples_of_lengths

    1 μm — edge of cube of volume 10 −18 m 3 (one femtolitre) 1–10 μm — diameter of a typical bacterium. 1.55 μm — wavelength of light used in optical fibre. 3–4 μm — size of a typical yeast cell. 5 μm — length of a typical human spermatozoon 's head [22] 6 μm — anthrax spore.

  3. List of tallest trees - Wikipedia

    en.wikipedia.org/wiki/List_of_tallest_trees

    Western North America. [1][2] It reached 116.07 metres (380.8 ft) in 2019. [3] The second and third tallest trees, both redwoods, were also found at Redwood National Park in 2006 when Hyperion was found, and were named Helios 114.7 metres (376 ft) and Icarus 113.1 metres (371 ft) tall (in 2006). [3] Himalayan cypress (Cupressus torulosa) 102.3.

  4. Foot (unit) - Wikipedia

    en.wikipedia.org/wiki/Foot_(unit)

    The foot (standard symbol: ft) [1][2] is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, ′, is commonly used to represent the foot. [3] In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet. Since an international agreement in 1959 ...

  5. Stadium-sized asteroid deemed 'potentially hazardous ... - AOL

    www.aol.com/news/stadium-sized-asteroid-deemed...

    NASA told Fox News Digital that the rocky object, which has been named 2024 ON, is 350 meters long by 180 meters wide, which roughly equals 1,150 feet by 590 feet – larger than previous ...

  6. List of mountains by elevation - Wikipedia

    en.wikipedia.org/wiki/List_of_mountains_by_elevation

    (Some people have claimed there are six more 8,000m peaks in Nepal, making for a total of 20. [1]) All are in the two highest mountain ranges in the world, the Himalayas and the Karakoram . Mount Everest - 8,848 m (29,029 ft) K2 - 8,611 m (28,251 ft) Kanchenjunga - 8,586 m (28,169 ft)

  7. List of unusual units of measurement - Wikipedia

    en.wikipedia.org/wiki/List_of_unusual_units_of...

    A board foot is a United States and Canadian unit of approximate volume, used for lumber. It is equivalent to 1 inch × 1 foot × 1 foot (144 cu in or 2,360 cm 3). It is also found in the unit of density pounds per board foot. In Australia and New Zealand the terms super foot or superficial foot were formerly used for this unit. The exact ...

  8. Saltwater crocodile - Wikipedia

    en.wikipedia.org/wiki/Saltwater_crocodile

    However the skull of the specimen is 66.5 cm (26 + 1 ⁄ 4 in) long indicating an animal of approximately 6.1 m (20 ft 0 in). [ 39 ] A crocodile shot in Odisha , India, [ 187 ] was claimed to measure 7.6 m (24 ft 11 in) in life, but its skull, when given scholarly examination, was thought to have come from a crocodile of a length no greater ...

  9. Metre - Wikipedia

    en.wikipedia.org/wiki/Metre

    The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of ⁠ 1 / 299 792 458 ⁠ of a second, where the second is defined by a hyperfine transition frequency of caesium.