TERMIUM Plus®

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HORIZON PROBLEM [2 records]

Record 1 2022-02-28

English

Subject field(s)
  • Astrophysics and Cosmography
  • Space Physics
CONT

The cosmic microwave background displays a uniformity of temperature, varying by just one part in a hundred thousand. This indicates that all regions have been in contact with one another some time in the past. However, when traced back to the big bang using Einstein's equations, these regions appear to have always been separated – outside of one another's past causal horizons, being more than a million light-years apart when the universe was only 400, 000 years old. This problem is known as the horizon problem...

French

Domaine(s)
  • Astrophysique et cosmographie
  • Physique spatiale

Spanish

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Record 2 2003-03-04

English

Subject field(s)
  • Modern Construction Methods
  • Underground Planning (Urban Studies)
CONT

The work of construction... is underground so that the site of the original museum will not be altered... The underground areas, ca. 12, 600 square meters, will house modern technological equipment, large conservation laboratories and other up to date technological services... The problem is that the underground extension of the museum-built on three levels-almost borders the tunnel for the Metro. The building is in a water-bearing horizon near the Ilissos River and the vibrations from the Metro could cause cracks and thus water could enter the museum.

French

Domaine(s)
  • Procédés de construction modernes
  • Aménagement souterrain (Urbanisme)
OBS

[Le] Laboratoire de l'Environnement Marin (LEM) avait initialement pour but d'étudier l'impact des essais nucléaires en mer. Au cours des dernières décennies, les activités de cette institution rattachée à l'AIEA (Agence Internationale de l'Énergie Atomique) se sont étendues à d'autres domaines de la pollution marine : métaux lourds, hydrocarbures pétroliers, polluants organiques persistants, et biocides marins. Pour mener à bien cette maison, le LEM vient de s'agrandir avec une extension souterraine sous la Place d'Armes.

OBS

Présentation dans le 19e arrdt. par J-P Caftet, Adjoint au maire de Paris, et l'APUR, du projet d'aménagement de la Cour Maroc. L'étude constitue un compromis permettant une extension souterraine de l'entreprise Tafanel avec un jardin qui englobe la totalité du terrain revendiqué par «Les Jardins d'Éole».

Spanish

Save record 2

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