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Underwater vision is the ability to see objects underwater, and this is significantly affected by several factors. Underwater, objects are less visible because of lower levels of natural illumination caused by rapid attenuation of light with distance passed through the water. They are also blurred by scattering of light between the object and ...
60 metres, or 60-meter dash, is a sprint event in track and field. It is a championship event for indoor championships, normally dominated by the best outdoor 100 metres runners. At indoor events, the 60 metres is run on lanes set out in the middle of the 'field', as is the hurdles event over the same distance, thus avoiding some of the effects ...
The 60-meter band or 5MHz band is a relatively new amateur radio allocation. First introduced in 2002, it was originally available in only a few countries, including the United States , United Kingdom , Norway , Finland , Denmark , Ireland and Iceland .
Lyles came within .1 seconds of Colemans' 2018 world record last month. On Friday, he was looking to become the first sprinter to put together world titles in the 60 meters, 100 meters and 200 ...
Light pollution limits viewing of celestial sights, as in this night scene from Moscow. Naked eye, also called bare eye or unaided eye, is the practice of engaging in visual perception unaided by a magnifying, light-collecting optical instrument, such as a telescope or microscope, or eye protection.
The following table shows the world record progression in the men's indoor 60 metres, as recognised by the IAAF. The IAAF have officially ratified world indoor ...
Unable to see at 3 metres (10 ft) what the normally sighted person sees at 60 metres (200 ft). Sight impaired Able to see at 3 metres (10 ft), but not at 6 metres (20 ft), what the normally sighted person sees at 60 metres (200 ft) Less severe visual impairment is not captured by registration data, and its prevalence is difficult to quantify
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