Nucleus Quotes
The hypothesis of molecular vortices is defined to be that which assumes - that each atom of matter consists of a nucleus or central point enveloped by an elastic atmosphere, which is retained in its position by attractive forces, and that the elasticity due to heat arises from the centrifugal force of those atmospheres revolving or oscillating about their nuclei or central points.
According to this hypothesis, quantity of heat is the vis viva of the molecular revolutions or oscillations.
William John Macquorn Rankine
While in the course of ages the nucleus of social custom inscribed in law has been subjected to but slight and gradual modifications, the other portion has been largely developed in directions indicated by the interests of the dominant classes, and to the injury of the classes they oppress.
Peter Kropotkin
A woman's chastity consists, like an onion, of a series of coats. You may strip off the outer ones without doing much mischief, perhaps none at all; but you keep taking off one after another, in expectation of coming to the inner nucleus, including the whole value of the matter. It proves, however, that there is no such nucleus, and that chastity is diffused through the whole series of coats, is lessened with the removal of each, and vanishes with the final one which you supposed would introduce you to the hidden pearl.
Nathaniel Hawthorne
There is a simple rule for composite objects, such as nuclei or atoms. The rule is that if such an object contains an odd number of fermions, the composite object is a fermion. Otherwise, it is a boson. ...this simple rule doesn't care at all about the number of bosons in the composite object.
Frank Wilczek
The anxiety felt today is an unmistakable symptom of rebellion. The very depths of a continent are profoundly moved, a continent that has witnessed four centuries of slave, semi-slave, and feudal exploitation beginning with its aboriginal inhabitants and slaves brought from Africa, up to the nuclei of nationalities that emerged later: white, black, mulatto, mestizo and Indian, who today are made brothers and sisters by scorn, humiliation and the Yankee yoke, and are brothers and sisters in their hope for a better tomorrow.
Fidel Castro
Why can stars do better than the big bang? ...During the big bang, there were only a few minutes when nuclei could form. Very rare processes, or slow ones, played little role. A case in point is the key process from which the sun derives its energy. In this reaction, two protons collide to produce a deuterium nucleus, a neutrino, and a positron. ...This reaction belongs to the family of weak interactions. ...It remains... a remarkable-and for humanity, remarkably fortunate-circumstance that the central reaction that drives the sun is so rare. It is only this extraordinary rarity that allows the average proton in the sun to last so long, billions of years, even though it is colliding with other protons millions of times a second. ...an entertaining example of Treiman's theorem.
Frank Wilczek
Once helium burning has occurred... the next possible reaction-carbon burning-is not necessarily slow... This reaction involves ...a strong as opposed to a weak interaction. ...Carbon burning results in magnesium. ...Taking a cross section of a highly evolved star would reveal a system of many layers. The inner layers have been subjected to the largest pressures, thereby forced to the highest temperatures, and burned the furthest; the outermost layers, by contrast, have not burned at all. Thus, as we proceed from outside in, there will be an outermost layer with the initial mix of hydrogen and helium, a layer of mostly helium, a layer of carbon, a layer of magnesium, and so on. ...So we arrive at the picture of a star, in the latest stages of its evolution... now composed of mostly carbon nuclei and other explosive material.
Frank Wilczek
To understand this radiation [ cosmic microwave background ], it is easier to begin thinking about the radiation from a very hot gas like that inside a neon light. The same neon... is, at room temperature, utterly transparent... The character of matter in general changes abruptly when it gets heated above 3,000 degrees or so. Below this temperature, matter is electrically neutral... At high temperatures in a neon light, the electrically charged pieces of atoms become unstuck. Frequent and violent collisions break down neutral atoms into electrons and unbalanced nuclei. Matter in this state is called plasma, and it radiates much of its collision energy in the form of light. ...a gas of neutral atoms (like air) is virtually transparent. The free [charged] nuclei and electrons of plasma, by contrast, couple to light's electromagnetic fields and absorb it very efficiently. ...You ...see light only from the borderline layer of neon between opaque plasma and transparent neutral atoms.
Frank Wilczek
I say nuclei, for to me whatever sphere, or other form, I use in these constructions does not necessarily mean a body of that size, shape or color, but may mean a more minute system of bodies, an atmospheric condition, or even a void. I.E. the idea that one can compose any things of which he can conceive.
Alexander Calder
Rutherford did not pretend to understand quantum mechanics, but he understood that the Gamow formula would give his accelerator a crucial advantage. Even particles accelerated at much lower energies ... would be able to penetrate into nuclei. Rutherford invited Gamow to Cambridge in January 1929 ... [They] became firm friends and Gamow's insight gave Rutherford the impetus to go full steam ahead with the building of his accelerator.
Freeman Dyson
..the equivalence of sounds, gratings, scratches, explosions, shots, blows, hammering, shouts, resonance, echoes in space; meditation of a cosmic theme, reflection for the contemplation of the earth, of magma, of lava, of ash; battlefield; garden; play-field; destiny of the ephemeral.. .Far from the cliché people have of artists holding the baggage of necessary originality, personality, style, etc., that calls for an outsider's discussion of the works, for the author there is, foremost, a nucleus of thought that is more anonymous and collective and of which artists are but humble servants. This is surely the zone where wisdom is deposited, the wisdom that one may really find beneath all ideologies and the contingencies of this world. It is the impulse of our life instinct for knowledge, love and freedom that has been kept and fed by the wisdom of all time.
Antoni Tàpies
It is not within our province to inquire by what process, and in what condition the Almighty brought matter into existence-what the space was which it occupied, or what the forms were which it assumed. Of such things we know nothing. In the depths of primeval time, the globe we inhabit may have a planetary existence, wheeling along its ethereal railway without a breathing passenger to count its periods, and without a living plant to measure the day by its opening and closing blossoms, or to mark the rolling seasons by the yearly increments of its stem. Or it may have been the theatre on which vast cycles of animal and vegetable life have been run- now its birthplace, and now its grave: But we have no data to guide us in our conjectures, and even imagination fails us if we call it to our aid. Whatever may have been, had ceased to be at the commencement of our history, when the primary rocks, forming the moten nucleus of the globe, were first exposed to the action of the elements.
David Brewster