books.google.co.uk - Did you know that 110 silkworms shook their heads 300,000 times each to produce the silk for a Shabbos tie? In the hands of Rabbi Avrohom Katz (Tuvia Cohen), science is not dry. It is interesting often amusing and he uses it as a window on the wisdom of the Creator. The author is a humorist, a scientist,...http://books.google.co.uk/books/about/Our_Amazing_World_Wonders_Hidden_Below_t.html?id=lF7DQokboRIC&utm_source=gb-gplus-shareOur Amazing World: Wonders Hidden Below the Surface
