Japan’s Ricoh has designed a micro hydropower system for sewage plants that could potentially be used in combination with ground-mounted solar or floating PV. The system features a sustainable water ...

Most simple DIY comb generators seem to run out of steam about 1 GHz. I recently ran into David Bowman’s 2.4 GHz circuit and measured an upper usable range of about 6 GHz. While greatly attenuated ...

Solar power is a clean, renewable energy source that can help limit climate change by liberating us from fossil fuels – but do you know what actually makes the technology tick? It’s not as complex as ...

A hydroelectric generator produces electricity by harnessing the kinetic energy of running water. Now you can not only find stationary larger-scale hydroelectric generators but also portable micro ...