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Colorado Top Bar Assembly
The Colorado Top Bar is a beautiful beehive for your backyard, community garden or rooftop. Designed by our team in Colorado and inspired by the classic Kenyan Top Bar design, the CTB contains minimal parts and requires lost no equipment to harvest honey and wax.
- 295 USD ($)
- 3 hour(s)
SolarOSE - Solar concentrator for steam generation
An open source solar concentrator to provide thermal energy for many applications. This document describes the construction of a linear Fresnel solar concentrator. The prototype is adapted for heat needs between 100°C and 250°C. Current levels of energy consumption are generally unsustainable. The use of solar energy favors a better distribution of the territorial economic activity. Meanwhile, many actual models are either designed for the industry, either for cooking in the South countries. Open Source Ecologie France researches and develops a solar concentrator made for an intermediary market, in order to make possible for little producers, artisans and micro-industries the use of solar energy.
- 2000 EUR (€)
- 6 day(s)
Solar coffee roaster (using a Scheffler concentrator)
It is about a coffee roaster that works with solar energy. The solar energy is collected by a Scheffler concentrator, a very good open-source technology, used since a while worldwide to cook. [http://www.solare-bruecke.org/index.php/en/die-scheffler-reflektoren This page explains the working principle of the Scheffler concentrator.]
- 500 EUR (€)
- 8 day(s)
Geiger Counter - Radiation Sensor Board for Arduino
The main finality of the Radiation Sensor Board for Arduino and Raspberry Pi is to help people in Japan to measure the levels of radiation in their everyday life after the unfortunate earthquake and tsunami struck Japan in March 2011 and cause the nuclear radiation leakages in Fukushima. We want to give the chance to measure by themselves this levels instead of trusting in the general advises which are being broadcasted. The usage of this sensor board along with the affordable and easy to use Arduino platform helps people to get radiation values from specific places.
- 200 EUR (€)
- 2 hour(s)