For six hundred years, the nations of Europe and North America have periodically attempted to coerce, invade, or conquer other societies. They have relied on their superior technology to do so, yet these technologies have not always guaranteed success. Power over Peoples examines Western imperialism's complex relationship with technology, from the first Portuguese ships that ventured down the coast of Africa in the 1430s to America's conflicts in the Middle East today.

Why did the sailing vessels that gave the Portuguese a century-long advantage in the Indian Ocean fail...