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Bio-sand filter for drinking water

Filter for drinking water using sand and a bacterial layer.

• Medium
• 3 hour(s)

Solar Oven (box-type oven)

Box or a parable shaped, the solar oven makes it possible to cook your food using the sun rays.

• Easy
• 1 day(s)

Micro gasifier stove

Build an economical and transportable wood cooking system.

• Very easy
• 1 hour(s)

Energy use in households

How to have energy-efficient homes

• Medium
• 0 month(s)

Domestic biodigestor

Produces natural gas and fertilizer from our organic waste.

• Medium
• 2 day(s)

Solar air heater

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

• Medium
• 2 day(s)

Manual pump (vertical)

The objective is to make a manual pump to draw water from a tank for exemple.

• Easy
• 3 hour(s)

Simple wooden bike trolley - hand tools only - back wheel attachment

Method to create a simple bike trolley, using up-cycled materials. Easily fixated to every bike (adult size). Holes on the board help attach any kind of cargo. It’s made out of wood and simple hand tools, no welding required! Dimensions are detailed and can easily be adapted to the material available. (price depends of what materials you use, of course!).

• Easy
• 2 day(s)

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