Civilization is About Capturing Energy

Civilisation, like life itself, has always been about capturing energy. That is to say, just as a successful species is one that converts the sun’s energy into offspring more rapidly than another species, so the same is true of a nation. Progressively, as the aeons passed, life as a whole has grown gradually more and more efficient at doing this, at locally cheating the second law of thermodynamics. The plants and animals that dominate the earth today channel more of the sun’s energy through ...

 The Natural Economy is Solar Powered

The natural economy is solar-powered. Photons from the sun rain down upon the entire daytime surface of the planet. Many photons do nothing more useful than heat up a rock or a sandy beach. A few find their way into an eye - yours, or mine, or the compound eye of a shrimp or the parabolic reflector eye of a scallop. Some may happen to fall on a solar panel - either a man-made one like those that, in a fit of green zeal, I have just installed on my roof to heat the bathwater, or a green leaf, ...