The concrete can conduct electricity and, after being coated with organic dyes like fruit juice, produces electricity through artificial photosynthesis. It’s an innovation from researchers at the University of Kassel.
A lot speaks for solar energy. It’s clean, renewable – and now even cheaper than energy from fossil fuels like coal or natural gas. Sounds pretty great, right? But it only makes up a tiny bit of global electricity production. Why don’t we use a lot more of it yet? We’re destroying our environment at… Continue reading How solar energy got so cheap, and why it's not everywhere (yet)