Information. The new language of science

Hans Christian von Baeyer reveal how the concept of information can cast light on principles as diverse as thermodynamics in physics and heredity in biology.
The nuclear age has morphed into the information age. Information is a cool, sexy word: using it makes you feel smart. It proves that you are plugged in and technologically sophisticated. Information is unquestionably in. But what is information? Is it a scientifically useful concept? The slow emergence of the notion of information during the 20th century contrasts sharply with the birth of the energy concept as in the 19th. Then, in the brief span of 20 years, energy was invented, defined and established as a key element of physics, and more generally of science. We don´t know what energy is, but we can describe it mathematically, measure it accurately, even market, regulate and tax it. In this work, Professor von Baeyer shows how information is becoming just as robust, and just as central to physics and biology, as energy is today. It is, he says, poised to replace matter as the primary stuff of the universe - stuff that flows out of a tangible object, like a piano or a book or an atom, and, after a tortuous sequence of metamorphoses involving the senses, lodges in the conscious brain.If we can understand the nature of information, we will have taken the first step along the road that leads from objective reality to our understanding of it. We will have found the philosopher´s stone - the key that unlocks the secrets of the universe.