Knihy o přírodních vědách a technice

What if modern society put a priority on the material security of its citizens and the ecological integrity of its resource base? What if it took ecological constraint as a given, not a hindrance but a source of long-term economic security? How would...

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  759 Kč

  Více než 30 dní

By pure chance, scientists detect a signal from space that may be communication from rational beings. How can people of Earth understand this message, knowing nothing about the senders—including whether or not they even exist?...

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  476 Kč

  Do 16 – 17 dnů