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Veejoolsade
Question de Veejoolsade


Le saviez-vous



Le phénomène des traînées blanches laissées par les avions dans le ciel ?






On constate parfois des traces dans le ciel laissées par les avions lorsqu’ils sont en plein vol, ces traces sont sous forme d’une traînée blanche, cette traînée est en effet constituée de cristaux de glace microscopiques créés par la condensation de la vapeur d’eau produite lors de la combustion du kérosène. Cette vapeur d’eau se transforme très rapidement en cristaux à cause de la température de l’atmosphère. La durée de ces traînées varie en fonction de l’ensoleillement et du taux d’humidité dans l’atmosphère. Si l’air est sec et ensoleillé, les cristaux vont s’évaporer rapidement mais si l’air est humide et qu’il fait froid, les cristaux vont rester sous cette forme pendant plusieurs dizaines de minute avant de redevenir de la vapeur.
Alors si vous constatez une traînée blanche persistante derrière un avion, un conseil, rentrez vite votre linge


Il y a
Warning: mktime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 9

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 15

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 15
5 ans
Meilleure réponse
Nailil35

Dis donc , tu nous en apprends des choses !!


Il y a
Warning: mktime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 9

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 15

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 15
5 ans
Réponses (3)
Missdebrouille
J'habite prés d "un aéroport SAINT ETIENNE BOUTHEON PETIT mis avec ds gros NAVIONS......Bon mon linge pas de problème vue la hauteur avant que sa tombe su mes peties culottes.....

Il y a
Warning: mktime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 9

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 15

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 15
5 ans

Warning: mktime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/question.php on line 1155
Missjacqueline
Oui j'avais entendu cette info mais merci de nous la donner

Il y a
Warning: mktime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 9

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 15

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/inc/function-question-reponse.inc.php on line 15
5 ans

Warning: mktime(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/web/elleraconte.com/www/question.php on line 1155
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