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Length contraction is the phenomenon that a moving object's length is measured to be shorter than its proper length, which is the length as measured in the object's own rest frame. It is also known as Lorentz contraction or Lorentz–FitzGerald contraction (after Hendrik Lorentz and George Francis FitzGerald ) and is usually only noticeable at a substantial fraction of the speed of light .
Wikipedia [c] is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the use of the wiki -based editing system MediaWiki. Wikipedia is the largest and most-read reference work in history.
Sognefjord Bridge, around 4 km, in Sogn og Fjordane. Nordfjord Bridge, around 1.8 km, in Sogn og Fjordane. Sulafjord Bridge, around 4 km, in Møre og Romsdal. Julsund Bridge, around 2.0 km, in Møre og Romsdal. Halsafjord Bridge, around 2.5 km, in Møre og Romsdal. New Mjøsa Bridge, around 1.5 km, in Hedmark and Oppland.
Daytime length or daytime duration is the time elapsed between beginning and end of the daytime period. Given that Earth's own axis of rotation is tilted 23.44° to the line perpendicular to its orbital plane , called the ecliptic , the length of daytime varies with the seasons on the planet's surface, depending on the observer's latitude .
Rayleigh length. In optics and especially laser science, the Rayleigh length or Rayleigh range, , is the distance along the propagation direction of a beam from the waist to the place where the area of the cross section is doubled. [1] A related parameter is the confocal parameter, b, which is twice the Rayleigh length. [2]
Crown-rump length. An ultrasound showing an embryo measured to have a crown-rump length of 1.67 cm and estimated to have a gestational age of 8 weeks and 1 day. Crown-rump length ( CRL) is the measurement of the length of human embryos and fetuses from the top of the head (crown) to the bottom of the buttocks (rump).
The arm's length principle ( ALP) is the condition or the fact that the parties of a transaction are independent and on an equal footing. [1] Such a transaction is known as an "arm's-length transaction". It is used specifically in contract law to arrange an agreement that will stand up to legal scrutiny, even though the parties may have shared ...
