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third eye

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Old news but worth a read..

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In 2001 a huge earthquake shook the state of Gujarat in India.

2,000 people were killed, 400,000 lost their homes, and countless more lost their businesses in the devastation.

One young entrepreneur, Mansukhbhai Prajapati, lost everything, but found an innovative way to get back on his feet. Prajapati designed a low-cost clay fridge which required no electricity and continued to function in the event of major catastrophes or blackouts such as the one that devastated his village.

Prajapati's invention is part of a growing trend in India that has become known as "frugal innovation" -- below-the-radar inventors across the country devising low-cost solutions to local problems, often borne of necessity, using bespoke technologies of their own creation.

So striking has the trend for frugal innovation become, that last year the National Endowment for Science, Technology and the Arts (Nesta), an independent charity in the UK, commissioned and published a major research paper on the phenomenon.

Former President APJ Abdul Kalam called him a 'true scientist'. Mitticool, a clay refrigerator that works without electricity had turned the world's attention to its creator Mansukhbhai Prajapati, a craftsman based in Gujarat.

Presenting the national award to Mansukhbhai in 2009, President Pratibha Patil appreciated his work and asked him for a Mitticool.

Scientists and journalists from across the world have visited his unit to see how he makes eco-friendly products at a low cost.

A school drop-out, he has achieved a feat that many in the world envy today. The simple and unassuming Mansukhbhai is not keen on money. His ambition is to make more low-cost and eco-friendly products for the masses.

"A good majority of Indians cannot buy a fridge as it is expensive. Besides this, electricity bills and maintenance cost is also high. Mitticool is an eco-friendly product which has no maintenance costs. It also retains the original taste of vegetables, says Mansukhbhai who has sold 1500 units so far.

"I failed in the tenth standard. But I was not disappointed as I knew that I was capable of making something new," says Mansukhbhai who holds a patent for Mitticool.

People who considered him as incapable, now look up to him. They say, "you are the pride of our community!"

He has been popularising earthen products since 1988. The only drawback for him is the lack of stores to sell them.

The products are mostly available in Gujarat and in some stores in Mumbai and Pune only. Besides, the low-cost fridge, he has developed a water filter, non-stick tava and a pressure cooker all made of clay. And he has many more innovative ideas.

 
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What is the average temperature maintained and how fast the temperature can be lowered ?
 
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What is the average temperature maintained and how fast the temperature can be lowered ?
The inside temperature of the MittiCool can be up to 8°C lower than the outside temperature.Hence it depends on the room temperature.
And i dont think it can be lowered further.But it still looks to be a very sensible, low-cost and planet-friendly way to extend the shelf life of food.
 
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What is the average temperature maintained and how fast the temperature can be lowered ?

The average temp inside would at best be 4-6 % below the ambient.

Quite like a Surahi or Ghara. The priciple is the same - evaporation causes cooling.
 
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The inside temperature of the MittiCool can be up to 8°C lower than the outside temperature.Hence it depends on the room temperature.
And i dont think it can be lowered further.But it still looks to be a very sensible, low-cost and planet-friendly way to extend the shelf life of food.

Correct ! The Mitticool is meant to preserve food-stuff, not to make ice-cream!
One can clearly guess which is a greater need for people.
 
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