Top 10 Inventions That Changed the World

Humans have dreamed up and created some amazing — and sometimes unorthodox —  inventions. From the moment someone bashed a rock on the ground to make the first sharp-edged tool, to the debut of the wheel to the development of Mars rovers and the Internet, several key advancements stand out as particularly revolutionary. Here are our top picks for the most important inventions of all time, along with the science behind the invention and how they came about. 

The wheel

Wheels were invented circa 3,500 B.C., and rapidly spread across the Eastern Hemisphere.

(Image credit: James Steidl (opens in new tab) | Shutterstock (opens in new tab))

Before the invention of the wheel in 3500 B.C., humans were severely limited in how much stuff we could transport over land, and how far. The wheel itself wasn’t the most difficult part of “inventing the wheel.” When it came time to connect a non-moving platform to that rolling cylinder, things got tricky, according to David Anthony, a professor of anthropology at Hartwick College.

https://www.livescience.com/33749-top-10-inventions-changed-world.html