It is clear that the world began before human beings learned to speak and even long before they made their appearance. However, as far as we are concerned and from our subjective point of view, “everything” began when we were able to articulate our thoughts as a sequence of meaningful words, for it was then […]
Many books have been published on the history of science. Each one provides a specific insight, and together they offer a fairly complete overview of the evolution of a substantial part of the intellectual heritage of mankind. The book I will review in these lines is, from that point of view, one more. One more […]
Inside the cells of breathing organisms –microorganisms, fungi, plants and animals– a cyclically configured sequence of chemical reactions transfers the energy provided by the organic substances –based on carbon chains– incorporated in the food into ATP molecules. This process, which we call the Krebs cycle, starts with acetyl coenzyme A (or acetyl-CoA), a derivative of […]
During the last decades and, especially, throughout the 21st century, expertise is in decline in the USA. This is the subject that the author addresses in his book. I have been interested in it since I learned of its existence because I have the impression that something similar is happening in Spain, although perhaps to […]