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Uploaded: 05.11.2003

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$0.15
Description of manufacturing simple and cheap barometer.

The weather station at home! Exact weather forecast for post- (post-post-) tomorrow, "place", namely where the barometer is.

Minimum material going for 10 minutes. Prizhelanii can establish small-scale production and selling barometers as souvenirs. The maximum cost of such a device - from 0 to a maximum of 5 rubles.
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