books.google.es - Venerated as god and goddess, feared as demon and pestilence, trusted as battle omen, and used as a proving ground for optical theories, the rainbow is woven into the fabric of our past and present. From antiquity to the twentieth century, the rainbow has helped inspire and test new ideas about the physical...http://books.google.es/books/about/The_Rainbow_Bridge.html?hl=es&id=kZcCtT1ZeaEC&utm_source=gb-gplus-share“The” Rainbow Bridge
