Power From The...

Researchers have discovered a way to capture and harness energy transmitted by such sources as radio and television transmitters, cell phone networks and satellite communications systems. By scavenging this ambient energy from the air around us, the technique could provide a new way to power networks of wireless sensors, microprocessors and communications chips. “There is [&hellip

Medieval smokestacks: fossil...

The history of energy use in human civilisation is generally summarised as follows: from Antiquity until the start of the Industrial Revolution, people made use of the manual labour of both animals and humans, as well as biomass, sun, water and wind. Next, all these renewable energy sources were replaced by fossil fuels: first coal, [&hellip

The Open Source...

“What makes (Steve) Nelson noteworthy, beyond the solar power technology he’s invented, is that unlike most everyone else trying to score in this market, Nelson’s vision for success includes giving away the technology for others to replicate and improve upon. You might call it “open source solar,” and if it catches on, Nelson will be [&hellip