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Electrically-assisted bicycle

Modification of a bicycle to transform it into an electrically-assisted bicycle.

• Hard
• 2 day(s)

Solar water heater

Capturing solar energy for domestic hot water or high-efficiency heating

• Hard
• 1 day(s)

Dry Toilets For Family

Dry toilets for domestic urban/rural use, occidental context

• Easy
• 2 hour(s)

Solar air heater

Solar air heater, adaptable to any type of house, by Guy Isabel.

• Medium
• 2 day(s)

Hydroponics

This tutorial aims to introduce hydroponics and how to build an individual system. This technology was documented during a stopover in Singapore of the "Nomade des Mers" expedition. We met Comcrop, a company that grows aromatic plants (basil, mint...) on an area that is usually unused and worthless: the roofs of buildings!

• Easy
• 1 day(s)

Spirulina-growing pond

Building of a spirulina-growing raised pond

• Medium
• 2 day(s)

Spirulina farming

Domestic cultivation of a highly nutritious micro-algae

• Medium
• 6 month(s)

Phyto-Purification of Wastewater

Ecological Sanitation of Wastewater

• Medium
• 8 day(s)

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