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The Government of Canada’s terminology and linguistic data bank.
THUNDER [2 records]
Record 1 - internal organization data 2011-08-19
Record 1, English
Record 1, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 1, Main entry term, English
- thunder clap
1, record 1, English, thunder%20clap
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- clap of thunder 2, record 1, English, clap%20of%20thunder
correct
- thunderclap 3, record 1, English, thunderclap
correct
- thunder 4, record 1, English, thunder
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
By definition, thunder is the loud noise that occurs when atmospheric gases are suddenly heated by a discharge of lightning. Thunder [or thunderclap] is also the huge crash that gets the adrenaline running through the veins, especially when it follows a lightning strike too close for comfort! 5, record 1, English, - thunder%20clap
Record number: 1, Textual support number: 2 CONT
Because light travels at a faster speed than sound, you can see a lightning bolt before the sound of thunder reaches you. To judge how close lightning is, count the seconds between the flash and the thunder clap. Each second represents about 300 metres. If you can count less than 30 seconds between the lightning strike and the thunder, this means that the storm is less than 10 km away and there is an 80% chance the next strike will happen within that 10 km. 1, record 1, English, - thunder%20clap
Record number: 1, Textual support number: 3 CONT
To obtain the distance in miles of a lightning bolt, count the number of seconds between flash and thunder, then divide by five. 6, record 1, English, - thunder%20clap
Record 1, Key term(s)
- thunder-clap
Record 1, French
Record 1, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 1, Main entry term, French
- coup de tonnerre
1, record 1, French, coup%20de%20tonnerre
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- tonnerre 2, record 1, French, tonnerre
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Certaines parties du nuage deviennent chargées d'électricité positive et d'autres, d'électricité négative. Quand la charge accumulée devient trop grande, une décharge se produit : c'est l'éclair. Sur son passage, le courant électrique chauffe l'air à plus de 30 000 degrés Celsius, 5 fois la température de la surface du soleil. Ce courant entraîne un tel échauffement que l'air est brûlé presque instantanément. Une expansion explosive de l'air se produit. Le bruit est très intense : c'est le coup de tonnerre. 3, record 1, French, - coup%20de%20tonnerre
Record number: 1, Textual support number: 2 CONT
Le tonnerre peut résonner d'un craquement sec lorsque l'éclair est proche ou gronder au loin [...] Si vous comptez moins de 30 secondes entre les éclairs et le tonnerre, l'orage est alors à moins de 10 km et il y a 80% de chances pour que le prochain coup de laudre survienne à moins de 10 km. 2, record 1, French, - coup%20de%20tonnerre
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-08-19
Record 2, English
Record 2, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 2, Main entry term, English
- thunder
1, record 2, English, thunder
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The sound that results from the formation of lightning. This burst of lightning expands air around it, producing an effect similar to an explosion, thus creating the noise. 2, record 2, English, - thunder
Record number: 2, Textual support number: 1 CONT
Thunder is the noise caused by the explosive expansion of air due to the heat generated by a lightning discharge. Thunder may have a sharp cracking sound when lightning is close by, compared to a rumbling noise produced by more distant strokes. 3, record 2, English, - thunder
Record number: 2, Textual support number: 2 CONT
Thunder ... moves through the atmosphere at a speed of about one mile in five seconds. To obtain the distance in miles of a lightning bolt, count the number of seconds between flash and thunder, then divide by five. 4, record 2, English, - thunder
Record 2, French
Record 2, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 2, Main entry term, French
- tonnerre
1, record 2, French, tonnerre
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Onde acoustique, se manifestant par un bruit sec ou un roulement sourd, accompagnant un éclair et qui est due à la dilatation brusque de l'air par réchauffement le long du trajet de l'éclair. 2, record 2, French, - tonnerre
Record number: 2, Textual support number: 1 CONT
L'impression auditive de roulement perçue par un observateur à distance a pour origine un phénomène de battement entre les ondes émises tout au long de l'éclair. Le tonnerre peut être entendu jusqu'à environ 25 kilomètres de distance. En raison de la vitesse de la lumière (300 000 kilomètres par seconde) la détection visuelle d'un éclair peut être considérée comme instantanée, alors que le «coup de tonnerre» qui lui est associé se transfère à la vitesse du son, soit approximativement 330 mètres par seconde. Ainsi en divisant par trois l'écart de temps exprimé en secondes entre la perception de l'éclair et l'audition du coup de tonnerre, on obtient une estimation approchée de la distance de l'orage, en kilomètres. 2, record 2, French, - tonnerre
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Fenómenos meteorológicos, climáticos y atmosféricos
Record 2, Main entry term, Spanish
- trueno
1, record 2, Spanish, trueno
correct, masculine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Ruido que produce un rayo cuando se propaga por la atmósfera. 2, record 2, Spanish, - trueno
Record number: 2, Textual support number: 1 CONT
En el instante que se produce el rayo se origina el trueno. El calor producido por la descarga eléctrica calienta el aire y lo expande bruscamente, dando lugar a ondas de presión que se propagan como ondas sonoras. Cuando esas ondas sonoras pasan sobre el observador, este percibe el ruido denominado trueno. Como la velocidad de la luz es de 300.000 km/s, el relámpago se ve casi al instante en que tiene efecto, pero no ocurre lo mismo con el trueno, ya que el sonido se propaga más lentamente, a unos 300 m/s. Por esto el trueno se oye después de desaparecer el relámpago. 3, record 2, Spanish, - trueno
Record number: 2, Textual support number: 1 OBS
Se debe a la expansión rápida de los gases a lo largo de un canal de descarga eléctrica. 4, record 2, Spanish, - trueno
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