Hannan  Savarsofla, Zeinab  Zareei, 
    The Echo of Voices in Qabus Tower,
    Journal of Engineering and Applied Sciences,
    Volume 11,Issue 1,
    2016,
    Pages 176-181,
    ISSN 1816-949x,
    jeasci.2016.176.181,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2016.176.181)
    Abstract: Qabus Tower was built during the King Qabus reign in Ziarian Dynasty. Regarding the time of its construction, it followed the Razistyle. There is a location 36 m from the Southern side of the tower, facing the construction with 4 degrees deviation toward the West on which making a sound will be associated with echo. The current study aimed to evaluate how this phenomenon happens and what is the cause of it.
    Keywords: Echo;superposition;muqarnas;papilla;deviation