Hello! You might not know about this.
Every year around the 6th of August (Feast of the Transfiguration) an interesting optical phenomenon occurs in Ceahlau Mountains of Eastern Romania: from the top of Toaca summit (1904 meters) a giant triangular shadow can be seen stretching across the landscape at sunrise. It is actually made up of at least 4 distinct shadows projected by various nearby mountain peaks. You can find photos and more detalis in the article below (try Google Translate). http://adevarul.ro/locale/piatra-neamt/foto-video-piramida-spatiala-muntele-ceahlau-fenomenul-ziua-schimbarii-fata-1_51ff94cac7b855ff56a8daf8/index.html Unfortunately I have not seen it myself (perhaps I can make it next year). One needs to climb the mountain very early in the morning or sleep up there in a tent. However, such a shadow phenomenon is by no means unique. So far I have read about one in the Alps ( http://www.dailymail.co.uk/news/article-2209467/Phantom-mountain-Magical-pictures-conjures-spectacular-illusion-shadowy-peak.html) and one in Tenerife ( http://gizmodo.com/5818097/the-mystery-of-the-phantom-pyramid-that-never-existed ). Regards, Dan Uza Romania
--------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
