| Here comes a dazzling DYI project allowing you to touch an electric arc (30 kV hey presto) with your bare fingers. No harm from that. Though...
All items tagged with light and USB (3)
| The Peltier lamp offered by Elektor is a project with a surprising principle: power a LED reading lamp with the energy from one candle. The...
| We live in a colourful environment these days. Everything is in colour: TV, advertising billboards, mobile phone displays and LEDs. Philips...