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HEAT DOME [4 records]

Record 1 2023-06-02

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

A weather phenomenon in which an area experiences stifling heat when a system of high pressure pushes very warm air downward and keeps it trapped as if in a bubble.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
CONT

L'expression «dôme de chaleur» est [...] utilisée pour décrire un couvercle qui se forme sur certaines régions lorsqu'un système de haute pression plane dans l'atmosphère, empêchant l'air chaud de s'échapper et le retenant, du même coup, à la surface de la Terre.

Spanish

Campo(s) temático(s)
  • Fenómenos meteorológicos, climáticos y atmosféricos
CONT

La causa de esta ola es una gran área de alta presión, conocida como "cúpula de calor", que ha desviado temporalmente el flujo típico de la corriente en chorro y ha permitido que el aire caliente de África suba al norte.

Save record 1

Record 2 2001-05-17

English

Subject field(s)
  • Launchers (Astronautics)
CONT

The Ausroc 3(A3) launch vehicle has a liquid fuelled motor that burns JA-1 kerosene with liquid oxygen, and uses regenerative cooling. The motor produces 35 kN at sea level and has a burn time of 80 seconds. The motor is gimballed to facilitate pitch and yaw control. The wall of the combustion chamber, throat and expansion nozzle consists of 102 stainless steel tubes stacked side by side running parallel to the motor axis. The tubes will be brazed together and the assembly wrapped in a carbon fibre composite. The composite wrapping is used to relieve to tubes of the hoop stress generated by the combustion pressure(2 MPa), whilst the tubes contain the combustion heat(3500 K). The top end of the motor has a kerosene inlet manifolt, oxygen dome and injector block. The kerosene inlet manifold delivers kerosene to every second motor tube, where it travels down to the arse end of the motor. Here it enters the lower kerosene manifold which is a simple plenum ring. This allows the kerosene to flow into the other alternate tubes which deliver it back up to the inlet manifold. The inlet manifold then directs the kerosene to the injector block, which sprays it and the liquid oxygen into the combustion chamber.

French

Domaine(s)
  • Lanceurs (Astronautique)
CONT

La fusée possède des moteurs à ergols liquides.

Spanish

Save record 2

Record 3 2001-04-01

English

Subject field(s)
  • Space Exploration Equipment and Tools
DEF

An atmospheric probe designed to make in situ observations of the Saturnian satellite Titan.

OBS

Some elements of the probe :heat shield, front dome, back over.

French

Domaine(s)
  • Équipement et outillage d'exploration spatiale
DEF

Sonde atmosphérique destinée à réaliser des observations in situ du satellite de Saturne, Titan.

OBS

Quelques éléments constitutifs de la sonde : bouclier thermique, dôme avant (du module de descente), capot arrière.

Spanish

Save record 3

Record 4 1991-04-05

English

Subject field(s)
  • Tourism (General)
  • Equipment and Facilities (Recreation)
  • Tourism Publicity
OBS

Walt Disney's original concept for Epcot : His Experimental Prototype Community of Tomorrow was intended to be sealed under a glass dome to keep out heat and humidity. It was to have had stores, apartments, schools, churches, offices, marinas, parks, golf courses, a monorail, a vacuum-tube trash-disposal system, a central computer controlling everything from streetlights to hotel reservations--and it was to have housed temporary residents who were to abide by Disney codes of dress and behavior. Epcot never took that form(...) Epcot today is a permanent world's fair that includes two sets of pavilions; scientific ones that celebrate mankind's technological mastery of the universe and a clutch of foreign lands--11 cultural boutiques that fit around a man-made lagoon as a symbol of human fellowship.

Key term(s)
  • EPCOT Centre

French

Domaine(s)
  • Tourisme (Généralités)
  • Installations et équipement (Loisirs)
  • Stimulation du tourisme
OBS

Il s'agira de "la plus importante exposition permanente" (...) de tout ce que les pays industrialisés nous réservent pour les années 2000 (...)

Spanish

Save record 4

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