what is steel in guns germs and steel
Guns, Germs, and Steel The book's title is a reference to the means by which farm-based societies conquered populations of other areas and maintained dominance, despite sometimes being vastly outnumbered â€“ superior weapons provided immediate military superiority (guns); Eurasian diseases weakened and reduced local populations, who had no immunity, making it easier to maintain control over them (germs); and durable means of transport (steel) enabled imperialism.
Vein Veins are less muscular than arteries and are often closer to the skin. There are valves in most veins to prevent backflow.
Metalworking Welding is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. This is often done by melting the workpieces and adding a filler material to form a pool of molten material that cools to become a strong joint, but sometimes pressure is used in conjunction with heat, or by itself, to produce the weld.
Steel Magnolias The title suggests the main female characters can be both as delicate as the magnolia flower, and as tough as steel.[3]