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

<https://gcmd.earthdata.nasa.gov/kms/concept/b645849d-c7fd-4fa5-9d23-7671a0a68d35>
  skos:definition """The photosynthetron consists of 10 arms (A-J) in a radial
arrangement around a high intensity 250 Watt lamp. Each arm can
hold 12 50ml screw-top culture bottles, and is temperature
controlled with water flowing through from a water bath. The
bottles shade each other so there is a gradient of light
irradiance ranging from 37.5 x 1015 quanta/sec/cm2 in bottle #1
to 0.78 x 1015 quanta/sec/cm2 in bottle #12.

[Source: College of Charleston South Carolina]"""@en ;
  skos:prefLabel "PHOTOSYNTHETRON"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/8143e95e-a438-4a2a-82b2-6d7ae079fba7> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/8143e95e-a438-4a2a-82b2-6d7ae079fba7>
  skos:prefLabel "Photon/Optical Detectors"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/b645849d-c7fd-4fa5-9d23-7671a0a68d35> .