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A US study published in 2015 of the stated preferences of a panel of 75 women using 3D-printed models as scale references showed a preferred penis length of 16 cm (6.3 in) and a preferred circumference of 12.2 cm (4.8 in) for long-term sexual partners, with slightly larger preferred sizes of a length of 16.3 cm (6.4 in) and circumference of 12. ...
Mean width: at the proximal vagina: 3.3 cm (1.3 in); at the pelvic diaphragm: 2.7 cm (1.1 in); at the introitus: 2.6 cm (1.0 in) A 2006 U.S. study of vagina sizes using Magnetic Resonance Imaging (MRI) on 28 volunteers between 18 and 39 years old, with heights ranging from 1.5 to 1.7 metres (4 ft 11 in to 5 ft 7 in), and weights between 49.9 ...
A 50 m × 25 m (164 ft × 82 ft) Olympic swimming pool, built to the FR3 minimum depth of 2 metres (6.6 ft) would hold 2,500 m 3 (2,500,000 L; 550,000 imp gal; 660,000 US gal; 2.0 acre⋅ft). The US National Institute of Standards and Technology (NIST) defines the Olympic swimming pool as 1 million litres, which is the approximate volume of the ...
810 m/s (2,700 ft/s) (standard shell) Effective firing range. 56 km (35 mi) (long range shell) 42 km (26 mi) (standard shell) The 40.6 cm SK C/34, [Note 1] sometimes known as the Adolfkanone (Adolf gun), was a German naval gun, designed in 1934 by Krupp and originally intended for the early H-class battleships.
10,000 yards (9,100 m) at 20°, 12,000 yards (11,000 m) at 24° [note 3] The QF 4.7-inch gun Mks I, II, III, and IV [note 4] were a family of British quick-firing 4.724-inch (120 mm) naval and coast defence guns of the late 1880s and 1890s that served with the navies of various countries. They were also mounted on various wheeled carriages to ...
Gravitational acceleration. In physics, gravitational acceleration is the acceleration of an object in free fall within a vacuum (and thus without experiencing drag). This is the steady gain in speed caused exclusively by gravitational attraction. All bodies accelerate in vacuum at the same rate, regardless of the masses or compositions of the ...
The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10 −2 metres ( 1 / 100 m = 0.01 m). To help compare different orders of magnitude , this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm).
Maximum firing range. Surface: 16,300 yd (15,000 m) [3] AA: 28,750 ft (8,800 m) [2] Filling. Lyddite, Amatol. Filling weight. 5 pounds (2.27 kg) The QF 4 inch Mk V gun[note 1] was a Royal Navy gun of World War I which was adapted on HA (i.e. high-angle) mountings to the heavy anti-aircraft role both at sea and on land, and was also used as a ...