@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/992ffede-af18-49a9-8acb-2cd333860efe>
  skos:prefLabel "Interferometers"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/c940ded8-8ddc-4fea-8bf7-5fb100cdf093> .

<https://gcmd.earthdata.nasa.gov/kms/concept/c940ded8-8ddc-4fea-8bf7-5fb100cdf093>
  skos:definition """The American physicist Albert Michelson invented the optical
interferometer.  The incoming beam is split into two beams by
the half-silvered mirror. Each sub-beam reflects off of another
mirror, which returns it to the half-silvered mirror, where the
two sub-beams recombine as shown. One of the reflecting mirrors
is movable by a sensitive micrometer device, allowing the path
length of the corresponding sub-beam, and hence the phase
relationship between the two sub-beams, to be altered.

Additional information available at
"http://www.physics.nmt.edu/~raymond/classes/ph13xbook/node13.html"

[Summary provided by New Mexico Tech]"""@en ;
  skos:prefLabel "MICHELSON INTERFEROMETER"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/992ffede-af18-49a9-8acb-2cd333860efe> ;
  a skos:Concept .