„Actually the situation is even more complicated, since a separate tentacle picture is needed for each speed of motion of the electron, the speed being measured relative to the suspended magnet or other object on which the moving electron is to act. …When the electron is at rest, the tentacles stick out equally in all directions. But an electron which is at rest relative to one magnet may be in motion relative to another, and to discuss the action of the electron on this second magnet we must picture it as having a belt of tentacles round its waist. This shows that we must have a different picture for every speed of relative motion, so that the total number of pictures is infinite, and we cannot form the picture we need unless we know the speed of the electron relative to the object it is about to meet.“

Physics and Philosophy (1942)

Obtido da Wikiquote. Última atualização 22 de Maio de 2020. História

Citações relacionadas

Arthur Stanley Eddington photo
Lee Smolin photo
James Tobin photo

„The rate of investment – the speed at which investors wish to increase the capital stock – should be related, if to anything, to q, the value of capital relative to its replacement cost.“

—  James Tobin American economist 1918 - 2002

Fonte: "A general equilibrium approach to monetary theory" (1969), p. 21 as cited in: Sılvio Rendon, "Non-Tobin’s q in Tests for Financial Constraints," 2009

Alastair Reynolds photo
Fernand Léger photo
David Mermin photo

„An extrapolation of its present rate of growth reveals that in the not too distant future Physical Review will fill bookshelves at a speed exceeding that of light. This is not forbidden by general relativity since no information is being conveyed.“

—  David Mermin American physicist 1935

quoting a joke he heard from Rudolf Peierls. [N. David Mermin, Boojums all the way through: communicating science in a prosaic age, Cambridge University Press, 1990, 0-521-38880-5, 57]

Galileo Galilei photo

„It seems to me proper to adorn the Author's thought here with its conformity to a conception of Plato's regarding the determination of the various speeds of equable motion in the celestial motions of revolution. …he said that God, after having created the movable celestial bodies, in order to assign to them those speeds with which they must be moved perpetually in equable circular motion, made them depart from rest and move through determinate spaces in that natural straight motion in which we sensibly see our moveables to be moved from the state of rest, successively accelerating. And he added that these having been made to gain that degree [of speed] which it pleased God that they should maintain forever, He turned their straight motion into circulation, the only kind [of motion] that is suitable to be conserved equably, turning always without retreat from or approach toward any pre-established goal desired by them. The conception is truly worthy of Plato, and it is to be more esteemed to the extent that its foundations, of which Plato remained silent, but which were discovered by our Author in removing their poetical mask or semblance, show it the guise of a true story.“

—  Galileo Galilei Italian mathematician, physicist, philosopher and astronomer 1564 - 1642

I. Bernard Cohen's thesis: Galileo believed only circular (not straight line) motion may be conserved (perpetual), see The New Birth of Physics (1960).
Sagredo, Day Four, Stillman Drake translation (1974) pp.283-284
Dialogues and Mathematical Demonstrations Concerning Two New Sciences (1638)

Alexander Calder photo
George Monbiot photo
Sheldon L. Glashow photo
Alexander Calder photo
Winston S. Churchill photo
Maya Angelou photo
Hans Reichenbach photo
Pierre Louis Maupertuis photo
James Burke (science historian) photo
Edward R. Murrow photo

„The speed of communications is wondrous to behold. It is also true that speed can multiply the distribution of information that we know to be untrue.“

—  Edward R. Murrow Television journalist 1908 - 1965

On receiving the "Family of Man" Award from the Protestant Council of the City of New York (28 October 1964)

Teresa of Ávila photo

„Just as we cannot stop the movement of the heavens, revolving as they do with such speed, so we cannot restrain our thought.“

—  Teresa of Ávila Roman Catholic saint 1515 - 1582

Fourth Mansions, Ch. 1, trans. E. Allison Peers (1961),<!-- Image Books --> p. 77
Interior Castle (1577)
Contexto: Just as we cannot stop the movement of the heavens, revolving as they do with such speed, so we cannot restrain our thought. And then we send all the faculties of the soul after it, thinking we are lost, and have misused the time that we are spending in the presence of God. Yet the soul may perhaps be wholly united with Him in the Mansions very near His presence, while thought remains in the outskirts of the castle, suffering the assaults of a thousand wild and venomous creatures and from this suffering winning merit. So this must not upset us, and we must not abandon the struggle, as the devil tries to make us do. Most of these trials and times of unrest come from the fact that we do not understand ourselves.

Tópicos relacionados