twilight phenomena

2

هذه الظاهرة تحدث عند إطلاق الصواريخ عند لحظة الغروب أو الشروق تدعى “ظاهرة الشفق Twilight Phenomena” سببها هو تجمد جزيئات الوقود غير المحترق وإرتفاعها في طبقات الجو عاكسة أشعة الشمس ومسببة هذا الطيف اللوني المميز. أول مرة حدثت فيها بالصين أبلغ السكان عن مشاهدتهم لمركبات كائنات فضائية.

المصدر

As Algy watched the sun sink down, and waves of darkness stole quietly across the loch, he began to observe a strangely hypnotic phenomenon. Of course he was exceedingly tired after his arduous flight along the river, and the light in the gloaming is always tricky and apt to deceive. It’s only too easy to imagine that you are seeing strange things when twilight falls in the West Highlands, even if you are wide awake. Nevertheless, it seemed to Algy that all was not entirely as he might have expected it to be… He was too exhausted to remain alert, or even to stay awake for longer than a few moments at a time, but as he dozed to the rhythm of the flickering light, he wondered drowsily whether it was really entirely wise to fall asleep at this time…