„ORDINARY QUANTUM MECHANICS (as far as I know) IS JUST FINE FOR ALL PRACTICAL PURPOSES.“

Against 'measurement' (1990)
Contexto: I agree with them about that: ORDINARY QUANTUM MECHANICS (as far as I know) IS JUST FINE FOR ALL PRACTICAL PURPOSES. Even when I begin by insisting on this myself, and in capital letters, it is likely to be insisted on repeatedly in the course of the discussion. So it is convenient to have an abbreviation for the last phrase: FOR ALL PRACTICAL PURPOSES = FAPP.

Obtido da Wikiquote. Última atualização 3 de Junho de 2021. História
John Stewart Bell photo
John Stewart Bell
1928 - 1990

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F. J. Duarte photo

„The most efficient and practical interpretation of quantum mechanics is… no interpretation at all.“

—  F. J. Duarte Chilean-American physicist 1954

in [Quantum Optics for Engineers, CRC, New York, 2013, 978-1439888537, F. J. Duarte]

Terry Pratchett photo
Luboš Motl photo
Steven Weinberg photo

„The principles of quantum mechanics are so contrary to ordinary intuition that they can best be motivated by taking a look at their prehistory.“

—  Steven Weinberg American theoretical physicist 1933

Fonte: Lectures on Quantum Mechanics (2012, 2nd ed. 2015), Ch. 1: Historical Introduction

David Pearce (philosopher) photo
Steven Weinberg photo
Steven Weinberg photo
Richard Feynman photo

„I think I can safely say that nobody understands quantum mechanics.“

—  Richard Feynman, livro The Character of Physical Law

Variante: I think I can safely say that nobody understands quantum mechanics.
Fonte: The Character of Physical Law (1965), chapter 6, “Probability and Uncertainty — the Quantum Mechanical View of Nature,” p. 129

Jan Zaanen photo

„Quantum mechanics is the Disney World for adults!“

—  Jan Zaanen Dutch physicist 1957

Real men do GR!
in Eminent Talent: 2006 - The twelfth year, a festive edition celebrating 10 years Spinoza Prize. http://www.nwo.nl/nwohome.nsf/pages/NWOA_6WAGZJ_Eng
Original: (nl) Quantummechanica is de Efteling voor volwassenen!

Steven Weinberg photo
Dorothy Thompson photo

„As far as I can see, I really was put out of Germany for the crime of blasphemy. … My offense was to think that Hitler is just an ordinary man, after all.“

—  Dorothy Thompson American journalist and radio broadcaster 1893 - 1961

Statement of August 1934, after being expelled from Germany, quoted in Dorothy Thompson : A Legend In Her Time (1973) by Marion K. Sanders, p. 199
Contexto: As far as I can see, I really was put out of Germany for the crime of blasphemy. … My offense was to think that Hitler is just an ordinary man, after all. This is a crime against the reigning cult in Germany, which says that Mr. Hitler is a Messiah sent by God to save the German people — an old Jewish idea. To question this mystic mission is so heinous that, if you are German you can be sent to jail. I, fortunately, am an American, so I merely was sent to Paris. Worse things can happen to one.

Steven Weinberg photo

„… I found that I was unable to explain the foundations of quantum mechanics in a way that I found entirely satisfactory.“

—  Steven Weinberg American theoretical physicist 1933

The Problems of Quantum Mechanics: Steven Weinberg https://www.youtube.com/watch?v=mBninatwq6k (July 17, 2018) YouTube video at 3:58 of 45:42

John S. Bell photo

„FOR ALL PRACTICAL PURPOSES = FAPP.“

—  John S. Bell Northern Irish physicist 1928 - 1990

Against 'measurement' (1990)
Contexto: I agree with them about that: ORDINARY QUANTUM MECHANICS (as far as I know) IS JUST FINE FOR ALL PRACTICAL PURPOSES. Even when I begin by insisting on this myself, and in capital letters, it is likely to be insisted on repeatedly in the course of the discussion. So it is convenient to have an abbreviation for the last phrase: FOR ALL PRACTICAL PURPOSES = FAPP.

Sidney Coleman photo

„People get a lot of confusion, because they keep trying to think of quantum mechanics as classical mechanics“

—  Sidney Coleman American physicist 1937 - 2007

Quantum Mechanics in Your Face http://www.physics.harvard.edu/about/video.html, a lecture given by Sidney Coleman at the New England sectional meeting of the American Physical Society (Apr. 9, 1994)

Alain Aspect photo
Victor J. Stenger photo

„The so-called mysteries of quantum mechanics are in its philosophical interpretation, not in its mathematics.“

—  Victor J. Stenger American philosopher 1935 - 2014

In God and the Folly of Faith: The Incompatibility of Science and Religion (2012)

Lawrence M. Krauss photo

„If you have nothing in quantum mechanics, you will always have something.“

—  Lawrence M. Krauss American physicist 1954

"A Universe From Nothing" by Lawrence Krauss, AAI 2009 http://www.youtube.com/watch?v=7ImvlS8PLIo

Paul Dirac photo

„It seems clear that the present quantum mechanics is not in its final form.“

—  Paul Dirac theoretical physicist 1902 - 1984

"The Early Years of Relativity" in Albert Einstein : Historical and Cultural Perspectives : The Centennial Symposium in Jerusalem (1979) edited by Gerald James Holton and Yehuda Elkana, p. 85
Contexto: It seems clear that the present quantum mechanics is not in its final form. Some further changes will be needed, just about as drastic as the changes made in passing from Bohr's orbit theory to quantum mechanics. Some day a new quantum mechanics, a relativistic one, will be discovered, in which we will not have these infinities occurring at all. It might very well be that the new quantum mechanics will have determinism in the way that Einstein wanted.

Willis Lamb photo

„I liked quantum mechanics very much. The subject was hard to understand but easy to apply to a large number of interesting problems.“

—  Willis Lamb American Physicist 1913 - 2008

W. E. Lamb, Super classical quantum mechanics: the best interpretation of non relativistic quantum mechanics, Am. J. Phys. 69, 413-422 (2001).

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