mitti cool, non-electric refrigerator
Many of the world's most inspiring entrepreneurs and inventors never fit the typical mould and have made their marks on the world after abandoning standard education. From India, Mansukhbhai R. Prajapati is one such person, and even though he never finished high school, he has built a very successful and forward-thinking company that provides needed jobs in his community manufacturing products that are changing the world for the better.

Mansukhbhai R. Prajapati grew up more interested in sports and fun than in learning, but after working in the clay industry for some time as a potter he started his own company and first revolutionized the way clay roof tiles were made.
"During his childhood, he saw earthen pans/hot plates being manufactured manually on the potters wheel. Using this, one person can only make about 100 units per day. He had seen roof tiles being manufactured in large quantity on hand press, which made him think why cannot earthen pans be made the same way?

In 1988, he left his job and took a loan from a money lender to start his own earthen plate manufacturing factory. He purchased a small piece of land for the factory, dyes and presses, soil mixing machine, electric potters wheel and other scrap objects. Then he modified the roof tile making hand press and developed a hand press machine having capacity to produce 700 earthen pans per day." [Source]
While very successful with this idea, his ingenuity led him to develop a line of products that is even more revolutionary than his industrial tile maker. Mitti Cool, as his company is called, produces an entire line of kitchen products made from clay.
"He has developed an entire range of earthen products for daily use in the kitchen. These products include water filters, refrigerators, hot plates, a cooker and other such items of daily use." [Source]
The refrigerator he designed uses the science of water evaporation to keep food cold in a small earthen fridge that uses no electricity and is already being sold in several countries.

mitti cool refrigerator
Some are calling it a revolution. Check out this newscast about his designs:

His idea is taking off globally, and Mitti Cool is receiving much international attention, so much so, that Mansukhbhai has even met with important public figures and he has been featured in televised talks to explain his green products that are changing the lives of many poor people.
"A refrigerator made by his company costs Rs. 3,000/- and can be afforded by poor people. It is based on the simple scientific principle that evaporation results into cooling. His refrigerator has channels where water can be filled up and allowed to vaporise, leaving behind a cool space which keeps fruits and vegetables fresh." [Source]
Take at look at a presentation of his ideas in a presentation entitled, 'Making the World Look Cool.'

At a time when the world needs new, inventive ways of conserving energy while providing modern lifestyles to the many people want them, many innovative individuals have come up with ways to achieve this. Mitti Cool makes an entire line of green, clay housewares, and companies such as Bakey's have developed things like edible cutlery that cut down on waste while providing affordable meals to people.