Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Ceiling_projector> ?p ?o }
Showing triples 1 to 47 of
47
with 100 triples per page.
- Ceiling_projector abstract "The ceiling projector or cloud searchlight is used to measure the height of the base of clouds (called the ceiling) above the ground. It is used in conjunction with an alidade, usually positioned 1000 ft (304.8 m) away and wherever possible set at the same level.The projector is normally set at 90°, although 71° 31' may be used, in relation to the terrain. The projector consists of a 430 W incandescent bulb set in a weatherproof housing. Inside the housing are two mirrors; the first, above the bulb, reflects the light downwards to the second mirror, that then reflects the light upwards to the cloud. Both mirrors are focused to produce a high intensity beam of light that renders a visible spot on the base of the cloud.The alidade is mounted on a post at a height of 5 ft (1.524 m) from the ground. It consists of an arm with a pointer and open sight at one end and a rubber eyepiece at the other. The arm is mounted onto a curved scale that is marked both in meters and the coded cloud height (feet). The observer looks through the eyepiece and sets the sight onto the spot projected on the cloud and reads the height from the attached scale.When the cloud is thin the beam of light may penetrate into the cloud. The observer should read the scale where the light first enters the cloud and not at the top. However, a remark may be made as to how far into the cloud the light was able to penetrate as this may be useful. In the case of fog or blizzard conditions the observer should read the scale where the beam disappears.".
- Ceiling_projector thumbnail Ceiling_projector_extexterior.JPG?width=300.
- Ceiling_projector wikiPageID "2505402".
- Ceiling_projector wikiPageLength "2234".
- Ceiling_projector wikiPageOutDegree "17".
- Ceiling_projector wikiPageRevisionID "549098565".
- Ceiling_projector wikiPageWikiLink Alidade.
- Ceiling_projector wikiPageWikiLink Blizzard.
- Ceiling_projector wikiPageWikiLink Category:Cloud_and_fog_physics.
- Ceiling_projector wikiPageWikiLink Category:Meteorological_instrumentation_and_equipment.
- Ceiling_projector wikiPageWikiLink Ceilometer.
- Ceiling_projector wikiPageWikiLink Cloud.
- Ceiling_projector wikiPageWikiLink Degree_(angle).
- Ceiling_projector wikiPageWikiLink Fog.
- Ceiling_projector wikiPageWikiLink Incandescence.
- Ceiling_projector wikiPageWikiLink Incandescent.
- Ceiling_projector wikiPageWikiLink Mirror.
- Ceiling_projector wikiPageWikiLink Searchlight.
- Ceiling_projector wikiPageWikiLink Triangle.
- Ceiling_projector wikiPageWikiLink Trigonometric_function.
- Ceiling_projector wikiPageWikiLink Trigonometric_functions.
- Ceiling_projector wikiPageWikiLink Watt.
- Ceiling_projector wikiPageWikiLink File:Alidade_for_ceiling_projector.JPG.
- Ceiling_projector wikiPageWikiLink File:Ceiling_projector_extexterior.JPG.
- Ceiling_projector wikiPageWikiLink File:Ceiling_projector_interior.JPG.
- Ceiling_projector wikiPageWikiLinkText "Ceiling projector".
- Ceiling_projector wikiPageWikiLinkText "ceiling projector".
- Ceiling_projector wikiPageWikiLinkText "projectors".
- Ceiling_projector hasPhotoCollection Ceiling_projector.
- Ceiling_projector wikiPageUsesTemplate Template:Clear.
- Ceiling_projector wikiPageUsesTemplate Template:Commons.
- Ceiling_projector wikiPageUsesTemplate Template:Meteorological_equipment.
- Ceiling_projector subject Category:Cloud_and_fog_physics.
- Ceiling_projector subject Category:Meteorological_instrumentation_and_equipment.
- Ceiling_projector type Instrument.
- Ceiling_projector type Instrument.
- Ceiling_projector comment "The ceiling projector or cloud searchlight is used to measure the height of the base of clouds (called the ceiling) above the ground. It is used in conjunction with an alidade, usually positioned 1000 ft (304.8 m) away and wherever possible set at the same level.The projector is normally set at 90°, although 71° 31' may be used, in relation to the terrain. The projector consists of a 430 W incandescent bulb set in a weatherproof housing.".
- Ceiling_projector label "Ceiling projector".
- Ceiling_projector sameAs Ceiling_projector.
- Ceiling_projector sameAs Projecteur_de_plafond.
- Ceiling_projector sameAs m.07jkgl.
- Ceiling_projector sameAs Облачный_прожектор.
- Ceiling_projector sameAs Q3407147.
- Ceiling_projector sameAs Q3407147.
- Ceiling_projector wasDerivedFrom Ceiling_projector?oldid=549098565.
- Ceiling_projector depiction Ceiling_projector_extexterior.JPG.
- Ceiling_projector isPrimaryTopicOf Ceiling_projector.
