2GreenEnergy super-supporter Gary Tulie sent me this incredible article on the falling cost of light over the millennia. My first thought when I saw it was that I would skim through it, since the subject matter may seem fairly obvious. …
2GreenEnergy super-supporter Gary Tulie sent me this incredible article on the falling cost of light over the millennia. My first thought when I saw it was that I would skim through it, since the subject matter may seem fairly obvious. …
