World War I began with the assassination of Archduke Franz Ferdinand in 1914. Europe experienced a period of relative stability after Napoleon's defeat. Germany's rise and Kaiser Wilhelm II's aggressive militarization fueled conflict. Nationalism united Britain, France, and Germany while dividing other empires. Complex alliance networks created a "blank check" for Austria-Hungary
Carbon fiber consists of thin carbon strands with high tensile strength. Each strand is 5-10 microns in diameter. Twice as stiff as steel and five times stronger than steel. Used in aerospace, construction, energy, and sporting equipment
Technology combines Greek "art" and "word" to mean discourse on arts. Term evolved from applied arts to encompass broader means and processes. Technology is human's capacity to create tools and modify environment
Automotive industry produces motor vehicles excluding tires, batteries, and fuel. Main products are passenger automobiles and light trucks. Commercial vehicles are secondary but important to industry
Technology combines Greek "art" and "word" to mean discourse on applied arts. Term evolved from applied arts to encompass broader means and processes. Technology is human's capacity to create tools and modify environment
Humans first appeared 2.5 million years ago in East Africa. Multiple human species evolved simultaneously from 2 million to 10,000 years ago. Early humans had large brains consuming 25% of body's energy. Humans walked upright, making tool use and social learning possible