Friday, January 27, 2012

Testing for bacteria in water

The H2S vial test is one of the easiest way to check for the presence of bacteria in drinking water. A simple glass vial containing a small coated paper is all that is required. Fill the water it needs to be checked till the fill line. Observe for 24-36 hours. If the water stays brown like in the bottle of the well, the water has no e.coli and is good to drink. If it turns black like in the bottle on the right then it has bacteria and cannot be drunk directly. Boiling the water may be a good way or using a water filter which removes bacteria.

Friday, July 9, 2010

Sans souci- earth home

Working with earth is a pleasure. We built this house in 1995 and have thoroughly enjoyed staying in it so far.
Particularly like the arches, each built differently . The walls combine earth blocks and stone from a quarry close by. the Terracotta floor has improved with age and elbow grease.
Hanging bells add sound to the house when silent.
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Wednesday, June 30, 2010

Rainwater harvesting techniques- Recharge pits

http://www.youtube.com/watch?v=5HrD5bAObRM

A great way to recharge groundwater and increase soil moisture is to make recharge pits. The method is shown in the video.

Saturday, June 27, 2009

Tribute to M.J.

From a newspaper in Bangalore India

Friday, May 8, 2009

Earth walls and natural light
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Saturday, April 25, 2009

Democracy at work in India


Voters search for their location room to vote
and electronic voting makes it easy

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Tuesday, April 21, 2009

this is movie on youtube
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