Top 10 Inventions That Changed the WorldIntroduction. (Image credit: igor.stevanovic / Shutterstock.com) The wheel. (Image credit: James Steidl | Shutterstock) The nail. (Image credit: alexcoolok | Shutterstock) The compass. (Image credit: Typo | Creative Commons) The printing press. The internal combustion engine. The telephone. The light bulb.
15 Life-Changing Inventions That Were Created By MistakeThe slinky. Inventor: Richard Jones, a naval engineer. Penicillin. Inventor: Sir Alexander Fleming, a scientist. Chocolate-chip cookies. Inventor: Ruth Wakefield, Owner of the Toll House Inn. Potato chips. The Pacemaker. Silly Putty. Microwave ovens. Saccharin (an artificial sweetener)
Once again, Switzerland remains the global leader in innovation, followed by the United Kingdom, Sweden, the Netherlands and the United States.
They were invented by aeronautical engineer George Cayley and first used in bicycles by James Starley.
Wheels were invented circa 3,500 B.C., and rapidly spread across the Eastern Hemisphere. Wheels are the archetype of a primitive, caveman-level technology. But in fact, they’re so ingenious that it took until 3500 B.C. for someone to invent them.