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Arm span or reach (sometimes referred to as wingspan, or spelled armspan) is the physical measurement of the length from one end of an individual's arms (measured at the fingertips) to the other when raised parallel to the ground at shoulder height at a 90° angle. The arm span measurement is usually very close to the person's height.
The distance A to B is the wingspan of this Boeing 777-200ER. The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the opposite wingtip. For example, the Boeing 777–200 has a wingspan of 60.93 metres (199 ft 11 in), [1] and a wandering albatross (Diomedea exulans) caught in 1965 had a wingspan of 3.63 metres (11 ft 11 in), the official record for a living ...
This is a list of units of measurement based on human body parts or the attributes and abilities of humans (anthropometric units). It does not include derived units further unless they are also themselves human-based. These units are thus considered to be human scale and anthropocentric.
The ape index is usually defined as the ratio of arm span to height. However, an alternative approach is arm span minus height with the result being positive, 0 or negative. Unlike the dimensionless ratio, this calculation produces a numeric value in the units of measurement used to represent the height and arm span.
The field of ergonomics employs anthropometry to optimize human interaction with equipment and workplaces. Anthropometry (/ æ n θ r ə ˈ p ɒ m ɪ t r ɪ / ⓘ, from Ancient Greek ἄνθρωπος (ánthrōpos) 'human' and μέτρον (métron) 'measure') refers to the measurement of the human individual.
The wingspan is the distance between wingtips when the wings are held outstretched. This measurement is difficult to measure in the field with live birds and is prone to variation resulting from wing posture. However, the wingspan is an important dimension in bird flight studies. [9]
A span is the distance measured by a human hand, from the tip of the thumb to the tip of the little finger. In ancient times , a span was considered to be half a cubit . Sometimes the distinction is made between the great span or full span (thumb to little finger) and little span or short span (thumb to index finger, or index finger to little ...
10 meters – average length of human digestive tract [citation needed] 12 meters – height of a saguaro cactus; 12 meters – length of a whale shark, largest living fish; 12 meters – wingspan of a Quetzalcoatlus, a pterosaur; 12.8 meters – length of a Titanoboa, the largest snake to have ever lived