This tutorial allows you to make a solar lamp equipped with a USB charger. It uses lithium cells that are reused from a old or damaged laptop. This system, with a day of sunlight, can fully charge a smartphone and have 4 hours of light.

Ecological Sanitation of Wastewater

Building an insulated mattress from salvage life jackets' foams

Preserve your surplus of fruit and vegetables by means of pasteurisation

Creating a wind turbine from printer stepper motors

This tutorial gives you the process on how to make biodiesel on a medium-scale (about 50L) from used cooking oil. This tutorial was written following the Nomade des Mers crew's visit to Cambodia. The social enterprise Naga Earth collects and converts used cooking oil from the town's hotels and restaurants into biodiesel. They also make soap with glycerin that comes from this same reaction. This benefits various schools and associations who carry out hygiene programs throughout the region.

Self-sustained Sink Suitable for Both Children and Adults

Short-Term Food Storage Solutions that Allow Optimal Environmental Conditions According to Food Type