This Lamp Runs On Salt Water

As you can imagine of a country that is spread over more than 7,000 islands, many people in the Philippines aren't hooked up to the power grid, so a common light source is the relatively dangerous kerosene lamp. In addition to the fire risk, getting the kerosene is a chore that takes a lot more work than flipping a switch. Or, now, scooping up a bucket of seawater. Just put a cup of ocean in the bottom of the SALt lamp and it lights up.