Oracle
How many kilometers long is each arm of a LIGO interferometer? Answer with the whole number only.
Answer
4
- unit
- kilometers
- arm_length
- The stated length of each LIGO interferometer arm.
- sources
- www.ligo.caltech.edu, ligo caltech official site (ligo.caltech.edu) and ligo scientific collaboration technical documentation state each ligo interferometer (hanford and livingston) has two perpendicular arms each 4 kilometers (4 km, ~2.5 miles) long., ligo caltech official site (ligo.caltech.edu) and the ligo laboratory detector description: ligo's two observatories (hanford, wa and livingston, la) each use a michelson interferometer with 4 km (2.5 mile) long arms, in which the laser beam travels 4 km down and 4 km back, an effective 8 km path per arm., ligo lab (caltech), 'what is ligo?' — https://www.ligo.caltech.edu/page/what-is-ligo; ligo scientific collaboration faq — https://ligo.org/faq/, ligo lab / caltech official fact sheet (ligo.caltech.edu): each ligo observatory (hanford and livingston) has two arms, each 4 kilometers (2.5 miles) long., ligo lab, caltech, ‘ligo - a gravitational-wave observatory’: https://www.ligo.caltech.edu/wa/page/ligo-gw-interferometer (states each interferometer has two 4 km-long arms)., ligo lab, ‘ligo - a gravitational-wave observatory,’ https://www.ligo.caltech.edu/wa/page/ligo-gw-interferometer (states each interferometer has two 4 km-long arms)., ligo lab, ‘ligo - a gravitational-wave observatory’: https://www.ligo.caltech.edu/page/ligo-gw-interferometer — states each interferometer has two 4 km-long arms., ligo laboratory (caltech/mit) official fact sheet: each l-shaped ligo interferometer (hanford and livingston) has two arms, each 4 km (2.5 mi) long., ligo laboratory (caltech/mit) official fact sheet: each ligo detector is an l-shaped interferometer with two 4-kilometer arms; https://www.ligo.caltech.edu/page/ligo-technology, ligo laboratory (caltech/mit) official facts page, ligo.caltech.edu: both ligo hanford and ligo livingston observatories have l-shaped vacuum systems with two 4-kilometer-long arms., ligo laboratory (caltech/mit) official facts: each ligo observatory (hanford, wa and livingston, la) has an l-shaped interferometer with two arms, each 4 kilometers (2.5 miles) long, housed in vacuum beam tubes., ligo laboratory (caltech/mit) public documentation: each ligo interferometer has two perpendicular arms 4 km (4 kilometers) long, as stated on ligo.caltech.edu and in ligo scientific collaboration technical overviews describing the l-shaped 4 km fabry-perot arm cavities at both the hanford, wa and livingston, la observatories., ligo laboratory (caltech/mit), official facility description: each l-shaped ligo interferometer has two arms, each 4 km (4 kilometers / 2.5 miles) long, housing evacuated beam tubes., ligo laboratory (caltech/mit), official ligo fact sheet (ligo.caltech.edu) and ligo scientific collaboration publications state each observatory's l-shaped interferometer has two arms, each 4 kilometers (4 km, ~2.5 miles) long., ligo laboratory (caltech/mit), official ligo fact sheet: each l-shaped interferometer arm is 4 km (2.5 mi) long, as built at both the hanford, wa and livingston, la observatories., ligo laboratory (caltech/mit), official ligo fact sheet: each ligo observatory (hanford, wa and livingston, la) has an l-shaped interferometer with two arms, each 4 km (2.5 miles) long., ligo laboratory / caltech official description: each ligo interferometer has two perpendicular arms 4 km (2.5 miles) long, housed in the world's largest vacuum system (ligo.caltech.edu, 'facts')., ligo laboratory / caltech official fact sheet (https://www.ligo.caltech.edu/page/facts) states each l-shaped ligo interferometer has two arms, each 4 km (2.5 mi) long., ligo laboratory / caltech official fact sheet (ligo.caltech.edu) and ligo scientific collaboration publications state each l-shaped interferometer has two perpendicular arms, each 4 kilometers (4 km, ~2.5 miles) long, at both the hanford, wa and livingston, la observatories., ligo laboratory / caltech official fact sheet (ligo.caltech.edu) and ligo scientific collaboration publications, which state each ligo interferometer (hanford and livingston) has two perpendicular arms 4 km (4 kilometers, 2.5 miles) in length, ligo laboratory / caltech official fact sheet (ligo.caltech.edu): each ligo interferometer (hanford and livingston) has arms 4 km (2.5 mi) long, ligo laboratory / caltech official fact sheet (ligo.caltech.edu): each ligo interferometer arm is 4 km (2.5 mi) long., ligo laboratory / caltech official fact sheet (ligo.caltech.edu): each ligo interferometer has two perpendicular arms, each 4 km (4 kilometers, 2.5 miles) long, ligo laboratory / caltech official fact sheet (ligo.caltech.edu): each ligo observatory (hanford, wa and livingston, la) has two arms, each 4 kilometers (2.5 miles) long, ligo laboratory / caltech official facts page (ligo.caltech.edu) and ligo scientific collaboration documentation both state each ligo observatory has two perpendicular arms 4 kilometers (2.5 miles) long., ligo laboratory / caltech public fact sheet (ligo.caltech.edu) and ligo scientific collaboration documentation state each interferometer arm is 4 km (4,000 m) long., ligo laboratory / caltech public fact sheet (ligo.caltech.edu) and ligo scientific collaboration documentation state each ligo interferometer has two perpendicular arms, each 4 kilometers (4 km, or 2.5 miles) long., ligo laboratory / caltech public fact sheet (ligo.caltech.edu): each ligo observatory (hanford, wa and livingston, la) has an l-shaped interferometer with two arms, each 4 kilometers (2.5 miles) long., ligo laboratory / caltech public facts page (ligo.caltech.edu) and ligo scientific collaboration technical documentation describe each ligo interferometer (hanford and livingston) as having two perpendicular arms 4 km (4 kilometers / 2.5 miles) in length., ligo laboratory / caltech-mit official fact sheet (ligo.caltech.edu), which states each ligo interferometer has two 4-kilometer-long arms, ligo laboratory / caltech-mit official fact sheet (ligo.caltech.edu): each ligo interferometer (hanford and livingston) has two perpendicular arms, each 4 km (2.5 mi) long., ligo laboratory / caltech-mit official fact sheet (ligo.caltech.edu): each ligo interferometer arm is 4 kilometers (2.5 miles) long., ligo laboratory / caltech-mit official fact sheet (ligo.caltech.edu): each ligo interferometer arm is 4 km (2.5 mi) long., ligo laboratory / caltech-mit official fact sheet (ligo.caltech.edu): each ligo interferometer has two arms, each 4 kilometers (2.5 miles) long, at both the hanford, wa and livingston, la observatories, ligo laboratory / caltech-mit official fact sheet (ligo.caltech.edu): each ligo interferometer has two arms, each 4 km (2.5 mi) long, ligo laboratory / caltech-mit official fact sheet (ligo.caltech.edu): each ligo observatory (hanford and livingston) has two perpendicular arms, each 4 km (2.5 miles) long., ligo laboratory / caltech-mit official fact sheet (ligo.caltech.edu, "ligo fact sheet"): each ligo observatory (hanford, wa and livingston, la) has two perpendicular arms, each 4 km (2.5 miles) long., ligo laboratory / caltech-mit official fact sheet: each ligo interferometer arm is 4 km (2.5 mi) long (ligo hanford and ligo livingston observatories)., ligo laboratory / caltech-mit official facts: both ligo observatories (hanford and livingston) have l-shaped interferometers with arms 4 kilometers (2.5 miles) long, ligo laboratory / caltech-mit public fact sheets (ligo.caltech.edu, ligo.org) state each ligo observatory (hanford and livingston) has l-shaped arms 4 km (2.5 mi) long., ligo laboratory official description (ligo.caltech.edu / ligo hanford & livingston observatory facts): each l-shaped interferometer has two arms, each 4 km (2.5 mi) long., ligo laboratory official fact sheet (ligo.caltech.edu) and ligo scientific collaboration publications state each l-shaped interferometer has two perpendicular arms 4 km (4 kilometers, 2.5 miles) in length, ligo laboratory official fact sheet (ligo.caltech.edu) states each ligo interferometer has two 4-kilometer-long arms, ligo laboratory official fact sheet (ligo.caltech.edu): each l-shaped interferometer has two arms, each 4 km (2.5 mi) long, at both the hanford, wa and livingston, la observatories., ligo laboratory official facts page (ligo.caltech.edu) and wikipedia 'ligo' article both state each l-shaped interferometer has two arms, each 4 kilometers (2.5 mi) long., ligo laboratory official site (ligo.caltech.edu) and ligo scientific collaboration documentation state each l-shaped interferometer has two perpendicular arms, each 4 km (about 2.5 miles) long., ligo official fact sheet (ligo.caltech.edu): each ligo interferometer arm is 4 km (2.5 mi) long., ligo.org, wikipedia, "ligo" (https://en.wikipedia.org/wiki/ligo): the interferometer arms are "4 kilometres (13,000 ft) apart"; corroborated by ligo caltech detector pages (https://www.ligo.caltech.edu/page/ligo-detectors)., wikipedia, "ligo": "each observatory supports an l-shaped ultra high vacuum system, measuring 4 km on each side" (https://en.wikipedia.org/wiki/ligo); corroborated by ligo caltech's own facts page, which describes the "4km length of each arm" and the 4km vacuum tube (https://www.ligo.caltech.edu/page/facts), www.ligo.org
Work
- pinnedblocks 26,087,480 to 26,087,780 to · on Ethereum mainnet
- answered210 of 210 agreed210 needed
#19294LIGO Laboratory / Caltech public fact sheet (ligo.caltech.edu) and LIGO Scientific Collaboration documentation state each interferometer arm is 4 km (4,000 m) long.
#7814from www.ligo.caltech.edu
#1834from www.ligo.caltech.edu205 more
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