The World's Greatest Tool!

Here's a look at the world's greatest tools:

---

From dawn to dusk, humans rely on tools to get us through the day. And from the beginning of civilization, we've used them to build and shape our world. In order to celebrate these devices, and so we might reflect upon the ways that we are the tools we use, Forbes.com decided to compile a list of the 20 most important tools of all time. These are the tools that have most impacted human civilization and helped move the course of history.

---

The winner? Duct tape!

Hattip Lifehacker