Catalog Search Results

MECHANICAL VIBRATIONS by J. P. DEN HARTOG.Originally published in 1917. PREFACE: This book grew from a course of lectures given to students in the Design School of the Westinghouse Company in Pittsburgh, Pa., in the period from 1926 to 1932, when the subject had not yet been introduced into the curriculum of our technical schools. From 1932 until the beginning of the war, it became a regular course at the Harvard Engineering School, and the book was...

Improve your life and enhance your healing practice with The Essential Guide to Aromatherapy and Vibrational Healing, an A-to-Z guide to sixty essential oils and their corresponding vibrational elements. Renowned author Margaret Ann Lembo shows you how to achieve physical, spiritual, and emotional balance using a variety of vibrational tools, including: • Flower Essences • Gemstone Essences • Chakras • Divine Messengers • Zodiac Signs • Planets • Colors • Numbers • Animals • Holy...

Elephants are able to sense an earthquake before it happens. How are they able to do this? They can feel the seismic vibrations in the earth through their trunk and their feet. Readers learn how elephants use these vibrations to communicate with each other and sense danger. Fun, memorable facts presented throughout the text address elephants and other animals with similar sensory adaptations, including snakes and spiders. Informative text and a detailed...