From the dawn of civilization to the present day, we name the highest-impact game changers in all of human history. Number one: the wheel.
Also inside:
- Fastest Tech in the World: Record-setting speed demons.
- Next-generation automotive safety features.
- Techno-Mixology: 13 gadgets for the geeky home bartender.
- 7 Casino Security Technologies, they don't want you to know about!
- Reviewed: the three biggest, best home security and control systems.
