Imagine that you live in a poor country, without money for a pair of glasses or access to an optometrist, and you're not seeing as well as you once did.
This product, a pair of self-adjusting eyeglasses, could change your life.

Or imagine that you are one of the 1.1 billion people on earth without access to clean, safe drinking water. Your child is in danger of contracting water-borne diseases, which kills 1.8 million a year. What would you give for this portable, water-filtration device, called LifeStraw?

Maybe you are one of the 1.6 billion people without regular access to electricity. Your children study at night using a kerosene lantern, but the fuel is expensive and dirty. A solar-powered lantern would be a dramatic improvement.