In today's interactive world, we text, download, and rely on GPS units for directions. And when we're not engaged in one of those activities, many of us are engaged in video game competitions with avatars (playful digital representations of human beings) throughout the world.
A few years ago I attended a conference in New York. During that conference, we experienced a major electrical blackout. Many of the conference attendees had to sleep on the ground in Times Square. Now, in the UK, engineers are working on a way to convert the vibrations from foot, train, and automobile traffic into energy.
The Roomba turned vacuuming from a manual chore to a background process. The iRobot (IRBT) device continually makes it way around a room to vacuum, leaving homeowners free to do other things. To date, iRobot had sold more than 2.5 million Roombas and expanded the line to models that clean swimming pools, sweep shop floors, and mop kitchens.