The miracle of physics that I'm talking about here is something that was actually known since the time of Einstein's general relativity; that gravity is not always attractive. Gravity can act repulsively. Einstein introduced this in 1916... in the form of the cosmological constant, and the original motivation of modifying the equations of general relativity to allow this was because Einstein thought that the universe was static, and he realized that ordinary gravity would cause the universe to collapse if it was static. ...The fact that general relativity can support this gravitational repulsion, still being consistent with all the principles that general relativity incorporates, is the important thing which Einstein himself did discover..
Alan GuthRelated topics
act cause constant form general known relativity repulsion something static support talking thing thought einsteinRelated quotes
The phase transition paradigm: The standard model of fundamental physics incorporates, as one of its foundational principles, the idea that "empty space” or "vacuum” can exist in different phases, typically associated with different amounts of symmetry. Moreover, the laws of the standard model itself suggest that phase transitions will occur, as functions of temperature. Extensions of the standard model to build in higher symmetry (gauge unification or especially supersymmetry) can support effective vacua with radically different properties, separated by great distance or by domain walls. That would be a form of failure of universality, in our sense, whose existence is suggested by the standard model.
Frank Wilczek
[Biology has] become the paramount science, exceeding other disciplines, including physics and chemistry at least, in the creative tumult of its disciplines and disputations. [...] I'll also be so bold at this point to suggest that we are now at the edge of establishing the two fundamental laws of biology: The first law is that all of the phenomena of biology, the entities and the processes, are ultimately obedient to the laws of physics and chemistry. Not immediately reducible to them, but ultimately consistent and in consilience with them, by a cause and effect explanation. The second law is that all biological phenomena, these entities and processes that define life itself, have arisen by evolution through natural selection.
E. O. Wilson
Well, I want to start out that I was lucky in the ‘60s to also be taking a class in Classical Ethology by a professor named Tom Evans, where I learned that operant conditioning does not explain all animal behavior. He explained how fixed action patterns and hardwired instinctual behavior works. And I remember going on a visit to Dr. Skinner and I felt like I was visiting, you know, the grand temple of psychology. And I went up to his office and, you know, he seemed, I'm like, "oh, you mean he's actually an ordinary person?" And we got to talking and of course back then I wore a dress you know ‘cause, you know, ladies had to be, like, dressed up, and I had a very conservative dress on, and B. F. Skinner touched my legs.
Temple Grandin
A new development began for relativity theory after 1925 with its absorption into quantum physics. The first great success was scored by Dirac's quantum mechanical equations of the electron, which introduced a new sort of quantities, the spinors, besides the vectors and tensors into our physical theories. ...But difficulties of the gravest kind turned up when one passed from one electron or photon to the interaction among an indeterminate number of such particles. In spite of several advances a final solution of this problem is not yet in sight and may well require a deep modification of the foundation of quantum mechanics, such as would account in the same basic manner for the elementary electric charge e as relativity theory and our present quantum mechanics account for c and h.
Hermann Weyl
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James Madison