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What Kind Of Steel Knives Do Not Stain Nor Rust? Shortly after the first of the year, in 1916, the U. S. Consul at Sheffield, England, reported that a new steel had been introduced there for use in making …

Description This section is from the book "The Wonder Book Of Knowledge", by Henry Chase. Also available from Amazon: Wonder Book of Knowledge. How Is Rubber Gathered By The Natives?

Combining the product of five 40-ton open-hearth furnaces. Steel casting forming part of a 12,000-ton armor-plate hydraulic forging press. Weight of casting, 325,000 pounds (145 gross tons). ...

The Story Of Rubber Rubber is the coagulated sap of more than 300 varieties of tropical trees and vines - the Landolphia of Africa, the Ficus of the Malay Peninsula, the Guayule shrub of Mexico and the …

Description This section is from the book "The Wonder Book Of Knowledge", by Henry Chase. Also available from Amazon: Wonder Book of Knowledge. How Was Rubber First Used?

Description This section is from the book "The Wonder Book Of Knowledge", by Henry Chase. Also available from Amazon: Wonder Book of Knowledge. The Story In A Silver Teaspoon. Part 2

This high polish is important, for it resists rust and prevents leading. That is the atmosphere of the whole place. Every action has its reason. There is not an unnecessary motion made by any one, and there …

What It Was What was the cross-bow? It was the first real hand- shooting machine. It was another big step toward the day of the rifle. The idea was simple enough. Wooden bows had already been made …