PDF Books in Children's Technology
The Mechanical Properties of Wood
by Samuel J. RecordThe Mechanical Properties of Wood is written for forestry students in an attempt to provide them the essential knowledge and technical properties. This book is written by the American Botanist Samuel J. Record, one of the prominent scholars in the study of wood, who has travelled across Americas and had an amazing collection of 41000 identifi..
Records of Steam Boiler Explosions
by Edward Bindon MartenSteam boiler explosions could be fatal which can claim many lives, infact claimed many lives in the past. This book "Records of Steam Boiler Explosions" is a true account of such historical explosions which happened during the years 1866 to 1871, written by Edward Bindon Marten. The author mentioned in the preface very clearly that the p..
Atoms in Agriculture
by Thomas S. OsborneAtoms in Agriculture is a part of the series "The Understanding the Atom Series" books written by Thomas S. Osborne, who was in charge of plant-breeding research being conducted by the University of Tennessee’s Agricultural Research Laboratory for the Atomic Energy Commission. Nuclear energy is playing a vital role in the life of every man, wo..
The Chemistry of Food and Nutrition
by A. W. DuncanWe may define a food to be any substance which will repair the functional waste of the body, increase its growth, or maintain the heat, muscular, and nervous energy. In its most comprehensive sense, the oxygen of the air is a food; as although it is admitted by the lungs, it passes into the blood, and there re-acts upon the other food which has pas..
The Chemistry of Hat Manufacturing
by Watson SmithThe subject-matter in this little book is the substance of a series of Lectures delivered before the Hat Manufacturers' Association in the years 1887 and 1888. About this period, owing to the increasing difficulties of competition with the products of the German Hat Manufacturers, a deputation of Hat Manufacturers in and around Manchester consulted..
Magic Shadows - The Story of the Origin of Motion Pictures
by Martin QuigleyThe art of magic shadows, which just before the dawn of the twentieth century evolved into the modern motion picture, was born three centuries ago, at Rome. There Athanasius Kircher, a German priest, first showed his invention, the magic lantern, to friends, and enemies, at the Collegio Romano, where he was a professor of mathematics.The world prem..
Preliminary Report on Gowganda Mining Division District of Nipissing Ontario
by W. H. CollinsThe portion of the Montreal River region with which the present report deals lies in the extreme western part of the District of Nipissing, in the neighbourhood of N. Lat. 47·45, and about 85 miles north of the town of Sudbury. It includes an area of 350 square miles, most of which lies between the two large branches of the Montreal river, which em..
60 New Trimmed Gift Ideas
by AnonymousGOLD FRINGE TREE To make:1. Starting at bottom of cone pin overlapping rows of fringe around cone completely covering it.2. Pin jewels to tree for ornaments.3. Glue row of gold braid around large rim of funnel.4. Insert tip of funnel into bottom of cone and glue to hold. This forms base for tree.5. Glue finial to top of tree for ornament...