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INVENTIONS THE POT-IN-POT REFRIGERATOR. The pot-in-pot refrigerator, also known as Zeer in Arabic, is a way of keeping cool without electricity by using.

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Presentation on theme: "INVENTIONS THE POT-IN-POT REFRIGERATOR. The pot-in-pot refrigerator, also known as Zeer in Arabic, is a way of keeping cool without electricity by using."— Presentation transcript:

1 INVENTIONS THE POT-IN-POT REFRIGERATOR

2 The pot-in-pot refrigerator, also known as Zeer in Arabic, is a way of keeping cool without electricity by using evaporative cooling. It is constructed by placing a clay pot withing a larger clay pot with wet sand in between and a wet cloth on top. As the water evaporates, there is a drop in temperature. The food stored in the inner container cools so it can be kept fresh for much longer in a hot, dry climate. Mohammed Bah Abba invented the device in 1995 and was awarded a Rolex Laureate (Rolex Awards for Enterprise) in 2000 for this ingenious technique.

3 MAKE YOUR OWN FRIDGE (ZEER) LINK:http://www.happyselfsufficient.com/Green-Energy/make-your- own-fridge-zeer.html

4 CHINDOGU INVENTIONS What is a chindogu? "Dogu" is the Japanese word for tool and "chin" might be best translated as "really weird." Basically, it’s a tool that doesn't quite improve our lives but it’s fun to look at because it's really weird. It’s just a fanciful invention of questionable utility. Let’s see some examples. Try to describe them and guess what they might be used for.

5 BUTTER STICK

6 FOOD COOLER

7 BACKSCRATCHER T-SHIRT

8 PORTABLE TOOTHBRUSH

9 UMBRELLA SHOES

10 DUSTER SLIPPERS AND BABY MOP


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