68, what are the inventions that changed the world

Fire", whether it is wildfire or drilling wood for fire or later flint for fire, fire has the same meaning to human beings as hands, after human beings have fire, the scope of survival expands (defending against wild beasts, can leave the cave farther), and the physical constitution also becomes better (cooked food is easier to digest).

Tools: This is a wide range, but it is the tools that humans can use that are the weapons of human beings against nature. Fire and tools are the key to the evolution of human beings over other creatures in primitive societies.

"Planting": The emergence of this technology is the dawn of the subsequent emergence of human civilization, without the reserve of food, human beings will not have civilization at all.

"Bronze" or "metal": this makes the variety of human tools more diverse and the conquest of nature more convenient.

"Iron": The use of iron has led to a great innovation in human tools.

Paper and printing: The inheritance of human civilization has become more convenient, and more importantly, the inheritance of knowledge has begun to expand, and knowledge has spread among the population with more and more books.

"Gunpowder": It has changed the form of human warfare, and of course human beings have a more powerful tool to change nature.

Ships and navigation": the great voyages and discoveries of the Middle Ages were undoubtedly the catalyst for changing ignorant Europe, and it was precisely because of the great voyages that there was a rich Europe, a prosperous Europe, a Renaissance Europe, and a later Industrial Revolution.

"Steam Engine": a sign of the industrial age, the liberation of human beings from heavy labor.

Electric light": Half of the splendor of the world now owes half to this small light bulb.

Electric Motors and "Internal Combustion Engines": the power and heart of the electrification era.

Electromagnetic waves": the greatest discovery of the information age.

"Rocket": Maybe now you think that the rocket is not a great invention, but the future cosmic era will witness this great invention.

Internet: Computers are not great inventions, but the Internet is.

United Nations": o( ohaha, this puppet system of government has contributed more to humanity than most powerful countries, and may be the hope of the future.

China's four major inventions, the steam engine, the generator.

Steam engine airplane, plastic **, computer, camera, paper, gunpowder, explosives, compass, car, gun, ......

The four great inventions of our great motherland and the inventions of Edison.

Of course, mobile phones and computers, Internet electricity.

There are too many, such as the four great inventions of ancient China and so on.