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HELIOGRAPHE [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2021-11-01

English

Subject field(s)
  • Telegraph Equipment
DEF

An instrument for sending telegraphic messages by reflecting the sun's rays from a mirror.

French

Domaine(s)
  • Appareils de télégraphie
DEF

Appareil télégraphique optique qui utilise les rayons solaires réfléchis à l'aide de miroirs.

Spanish

Campo(s) temático(s)
  • Equipo de telegrafía
DEF

Aparato de telegrafía óptica fundado en el uso de un espejo que se hace oscilar al sol con un manipulador para producir destellos cortos o largos, con arreglo al alfabeto Morse, visibles desde la estación receptora.

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Record 2 - external organization data 2021-03-18

English

Subject field(s)
  • Compartment – Nomenclature 4.0
  • Museums and Heritage (General)
OBS

heliograph: an item in the "Visual Communication Tools and Equipment" class of the "Tools and Equipment for Communication" category.

French

Domaine(s)
  • Tiroir – Nomenclature 4.0
  • Muséologie et patrimoine (Généralités)
OBS

héliographe : objet de la classe «Outils et équipement de communication visuelle» de la catégorie «Outillage et équipement pour la communication».

Spanish

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Record 3 2010-03-11

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
DEF

An instrument for recording the duration and intensity of sunshine.

CONT

[The] heliograph ... records the duration of sunshine and gives a quantitative measure of the amount of sunshine by the action of the sun's rays upon blueprint paper. [It is] a type of sunshine recorder.

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
DEF

Instrument enregistreur de la durée d'insolation, c'est-à-dire des intervalles de temps pendant lesquels le disque solaire est visible ou pendant lesquels le rayonnement solaire atteint une intensité suffisante pour produire des ombres portées sur le sol [...]

OBS

[...] cette intensité correspond à un éclairement énergétique égal ou supérieur à 120 W.-2.

Spanish

Campo(s) temático(s)
  • Estaciones, instrumentos y equipos meteorológicos
DEF

Instrumento que registra diariamente las horas durante las cuales ha brillado el sol.

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