Man builds stair-climbing wheelchair

Li Rongbiao, 67, and his wife Wang Huifang, 65, live in a fifth floor apartment in Beijing. His wife broke her leg, and it used to take them a half-hour to get from their apartment to the ground floor. Li decided to sell his apartment for £44,000 to spend his time working on an electric wheelchair that could go up and down stairs. After a year's work, he now has a foldable wheelchair that can climb nearly 3,000 steps - the equivalent of 50 floors -- on one charge. Read the story.

When government was a lot smaller, Americans used to invent things like this. Now, our most innovative products are new ways to go into debt while shifting the liability to others.