As the most abundant greenhouse gas in our atmosphere, CO2 levels have varied widely over the course of the Earth’s 4.54 billion year history.

Source: A Graphical History of Atmospheric CO2 Levels Over Time | Earth.Org – Past | Present | Future

Some people could hypotize that there have been three or four “industrial civilizations” before us in the last million years… look at the sudden peaks in CO2 concentrations in the Pleistocene. Those peaks are of the same order of magnitute of the current one… but the time scale is not the same…

Un ciclette con un alternatore ed una batteria, mia moglie ed il mio papà mi dicono spesso che dovrei costruirne una.

Oh, certo ci sono, ma sono piccole e smilze:

  Cyclette Power Station – Produci energia

http://www.powerplus-italia.com/?id=My03Ny03Ny1JVEEg

E due, un’altra ipotesi plausibile sulla posizione della mitologia Atlantide: Atlantis Revealed: Plato’s Cautionary Tale Was Based On A Real Setting | Ancient Origins

lo studio mostra che intorno al 9600 aC, quando secondo Platone Atlantide era sopra l’acqua, le moderne Isole Cicladi erano collegate dall’altopiano delle Cicladi, un terreno pianeggiante (ora 400 piedi sotto il livello del mare) che formava il corpo di un’enorme isola. Quando questa isola preistorica viene paragonata all’Atlantide di Platone, diventa immediatamente evidente che questa doveva essere la terra di cui parlava Platone.

Larry Wall had it right when he said that laziness is one of the virtues of a good programmer. But he was talking about in the sense of using existing code and not creating the wheel over and over. Laziness can apply just to a clean programming style. I visit old projects after several years and often thank myself for not taking short cuts when I wrote the code. It is nice when some parameter is a #define up top and not some constant scattered here and there. Things like that.

Source: Code For Hackers | Hackaday