Electrifying Plants - Mesmerizing, Camera-Less Images of Electrocuted Flowers by Marina Galperina. It can take up to 150 attempts to capture one of these glowing, alien plant images — not to mention the risk of accidental electrocution with 80,000 volts. But look at the results! Beautiful. Fearless, patient San Francisco artist Robert Buelteman worked on his recent project at a biological preserve at Stanford. All of the images were created without a camera or computer wizardry.
This is incredible idea is an extension of the pottery water cooling vessels used though the millennia.
This is Mohammed Bah Abba’s Pot-in-pot invention. In northern Nigeria, where Mohammed is from, over 90% of the villages have no electricity. His invention, which he won a Rolex Award for (and $100,000), is a refrigerator than runs without electricity.
Here’s how it works. You take a smaller pot and put it inside a larger pot. Fill the space in between them with wet sand, and cover the top with a wet cloth. When the water evaporates, it pulls the heat out with it, making the inside cold. It’s a natural, cheap, easy-to-make refrigerator.
So, instead of perishable foods rotting after only three days, they can last up to three weeks. Obviously, this has the potential to change their lives. And it already has — there are more girls attending school, for example, as their families no longer need them to sell food in the market.
Arnold Williams from hathaby.net commented on this in his weblog. He said:
Brilliant ideas don’t need to be difficult to execute: here’s a case in point. The technology has been known for centuries, but WASN’T APPLIED TO THE PROBLEM. Notice that applying technology also has the effect of educating young people.