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GRAVITATIONAL PHYSICS. “A central player in these developments is the black hole. Black holes are a consequence of general relativity, Albert Einstein's geometric theory of gravitation, initially published in 1915.” https://lnkd.in/draqjTW View in LinkedIn

Take squishy innards, bumping around in flight, and after a while out comes the perfect geometry of the egg. Beyond remarkable. View in LinkedIn

OUT OF NOTHING. “There was nothing before the Big Bang: no space, no time, no matter. Only a photon could exist in such circumstances. Only a photon is self-sufficient. The photon does not need ordinary (gravity) space and/or time. The photon creates its own electromagnetic space.” (Novel hypothesis). https://lnkd.in/d8U8qJM View in LinkedIn

ASK THE RIGHT QUESTION FIRST. “Surprisingly, developments in gravitation physics in the past three decades have supplied some clear answers to what seem to be elusive questions.” https://lnkd.in/draqjTW View in LinkedIn

WORLD IN A GRAIN OF SAND. “Given the dizzying progress in miniaturization, one can playfully contemplate a day when quarks will serve to store information, one bit apiece perhaps. How much information would then fit into our one-centimeter cube? And how much if we harness superstrings or even deeper, yet undreamt of levels?” https://lnkd.in/draqjTW View in LinkedIn

THE INTERDEPENDENCE. “One cannot calculate the ultimate information capacity of a chunk of matter or, equivalently, its true thermodynamic entropy, without knowing the nature of the ultimate constituents of matter or of the deepest level of structure, which I shall refer to as level X.” https://lnkd.in/draqjTW View in LinkedIn

BELOW THE SURFACE. “Many physicists today consider electrons and quarks to be excitations of superstrings, which they hypothesize to be the most fundamental entities. But the vicissitudes of a century of revelations in physics warn us not to be dogmatic. There could be more levels of structure in our universe than are dreamt of in today's physics.” https://lnkd.in/draqjTW View in LinkedIn

TWO DISCIPLINES. “By the 1930s, genetics and embryology had their own rules of evidence, their own paradigmatic experiments, their own favored organisms, their own professors, their own journals, and most importantly, their own vocabulary. Since then, genetics has become explained in terms of molecular biology, and embryology has become developmental biology.” https://lnkd.in/dQuxg6Y View in LinkedIn

CONSEQUENCES. “The predominant problem of embryology from the 1700s through the 1950s was the creation of ordered form, morphogenesis, not differentiation. Morphogenesis was a whole-embryo question, differentiation a cellular question. The genetic redefinition of embryology collapsed the morphogenesis question into a subset of the cell differentiation question.” https://lnkd.in/dQuxg6Y View in LinkedIn

FRAGMENT FROM NATURE features for this and next weekend an excellent article titled “Enzymatic Adaptation and the Entrance of Molecular Biology into Embryology” by Scott F. Gilbert. It describes the acute rivalries between embryologists and geneticists as the two disciplines came to overlap, and is a testament to the resistance of science to new ideas based on turf and the ideology of reductionism versus holism. https://lnkd.in/dQuxg6Y View in LinkedIn