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This can be made under $4 so make it yourself and show us what you made:

This bottle uses a Peltier module to cool the water stored in the bottle now the heat generated from this Peltier module is transferred from the base of the Peltier module to the heat sink , heat sink is further connected to a dc fan which throws out the heat.

The container of the bottle is made up of copper due to two reasons:

1) It’s a good conductor

2) It kills the germs of water and impart a unique taste to the water.

NOTE: Any other material can also be used instead of copper.

* The outside case is made up of wood so that inside temperature changes can’t be felt outside.

* The whole mechanism of the bottle works on 12 v dc supply .

Ideal for long distance travel , offices , schools etc.

Click here to get full step by step detail and parts for this project here:

http://www.gaffarmart.in/indestructible-projects/

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Bio: Interested in technology.
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