1. Introduction

1.0.1 Publications (repeated from the Home Page)

Findings, discussed on this website, were published in 2021 in two publications [Optik_1, Optik_2] in the Elsevier Scientific Journal Optik. Further follow-up scientific journal publications are in progress and/or planned.

[Optik_1] E. Brauns, On two thought experiments revealing two massive theoretical anomalies, proving both the contemporary “ray of light” paradigm to be flawed and the impossibility of a photon to inherit any velocity vector component from its source, Optik 230 (2021) 165858, 

[Optik_2] Etienne Brauns, On a straightforward laser experiment, confirming the previously published irrevocable falsification of the Equivalence Principle paradigm for photon phenomena, Optik 242 (2021) 167178,

A conference Keynote Presentation, regarding the contents of [Optik_1] and [Optik_2], can also be downloaded and viewed as a mp4 video presentation:

Etienne Brauns, “On the falsification of the Equivalence Principle for photons, through two massive theoretical anomalies, while being confirmed by a straightforward laser experiment”, Keynote Presentation Physics Forum 2021, Frankfurt,  (scroll down at that ReserachGate website page and press "Download" there)

A follow-up publication of Optik_1 and Optik_2 was announced in Optik_2 and published (January 2023) by the Elsevier scientific Journal "Results in Optics" (RIO).

[RIO_1] Etienne Brauns, "On the concept and potential applications of a photons based device, measuring the velocity vector of an object, moving at high speed in space", Results in Optics, 10 (2023) 100349,

You can download a "Sign Post" text in pdf format describing the goal of the website, the contents of the multiple downloadable publications (including their download links) by clicking the following link:

You can also download at the Home page my publications :

D1) E. Brauns, A shattered Equivalence Principle in Physics and a future History of multiple Paradigm Big Bangs in "exact" science ?, book, 450 pages, the following separate publications were extracted from the website and this book:

D2) E. Brauns, "On multiple anomalies and inconsistencies regarding the description of light phenomena in contemporary science.", 9 pages / D3) E. Brauns, "On a massive anomaly through a straightforward laser experiment falsifying the equivalence principle for light.", 6 pages / D4) E. Brauns, "On the flawed Michelson and Morley experiment null-result paradigm.", 21 pages / D5) E. Brauns, "On a flawed Lorentz contraction paradigm caused by an erroneous Michelson-Morley model and null-result.", 11 pages / D6) E. Brauns, "On the inconclusiveness of the results from the Eddington 1919 solar eclipse mission to measure the bending of light.", 22 pages / D7) E. Brauns, "On The Mercury perihelion precession: a critique on the anomaly and a plausible additional effect of the sun.", 23 pages / D8) E. Brauns, "On the totally flawed contemporary light clock paradigm and on Paul Langevin's twin paradox being to the point", 18 pages / D9) E. Brauns, "On a device, measuring in real space the real velocity of an object and on Mach's flawed relativity thought experiment ", 23 pages / D10) E. Brauns, "On Einstein's relativity of simultaneity thought experiment as a flawed contemporary paradigm ", 17 pages

1.0.2 Goal and structure of this website. Paradigms and anomalies.

In the website sections "2. Experimental", "3. Theory", "4. Applications" and "5. Consequences" the core message of this website can be found. The core message is the experimental and theoretical proof of flawed paradigms in contemporary physics, involving light phenomena in real space. So you can eventually skip this Introduction and immediately start reading the sections 2-5 but maybe you could be interested to have first some information as presented in this Introduction section about the evolution of the paradigms (related to space, time and velocity) in the history of science as described in see 1.1 - 1.3 below. Contemporary paradigm believers/defenders indeed are often not aware of the extremely important paradigm processes as described by Thomas Kuhn within his book "The Structure of Scientific Revolutions"  ( Having a look at those views from Thomas Kuhn by those contemporary paradigm believers/defenders could eventually change their state-of-a-closed-mind and their blockage type of attitude towards suggested paradigm shifts into a more open state of mind. An open state of mind regarding the importance of the experimental result as presented within Figure 2 at this website. Figure 2 reveals a massive anomaly towards the paradigms they believe in. From Popper's falsification principle only one such detected anomaly can be devastating towards paradigms, nonetheless the "number of experiments" which have "proven" the paradigms and which those paradigm believers/defenders consider as "the stone those paradigms are written in for eternity". Even Einstein stated that "only one experiment can prove me wrong". Such could also trigger a more open mind from these contemporary paradigm believers/defenders towards the result of the thought experiment as presented in Figure 24 at this website. In addition to the importance of Figure 2 the Figure 24 reveals a massive inconsistency within contemporary paradigms. Such should be immediately very clear to any open minded contemporary paradigm believer. Therefore digging somewhat deeper into the topic and concept "paradigm" within the history of science can change the rigid stand of contemporary paradigm believers/defenders regarding their "indisputable paradigms" into a looser stand and the acceptance of the disputable character of paradigms at whatever point in the history of science, thus also in the present.

(For you to eventually have a look at : at the end of this Introduction some literature references are given).

1. 1 General remarks on paradigms and their tenacity in the history of science

Human perceptions evolved during many centuries, from the philosophers (and scientists) belonging to the “ancient” Greeks , the Age of Rationalism (Reason), the Age of Enlightenment, the Industrial Revolution and the contemporary area. According to Thomas Samuel Kuhn, as described in his book “The Structure of Scientific Revolutions”, many paradigms did evolve in the Modern Times. A paradigm typically shows a period of emergence, a period of culmination and often a period of decline during its shift to another, enhanced or even fully replacing, paradigm. During its lifetime, a paradigm is fiercely defended by its supporters (believers of the paradigm). 

The wrong geocentric paradigm was an extremely long standing one in the history of science. It is known that it took 14 centuries of human conflicts before his extremely faulty geocentric paradigm was finally countered, even including harsh repressions by e.g. the Inquisition. The death of Giordano Bruno in 1600 (Singh, 2005, pp. 43; Law, 2007, p. 272) and the house arrest of Galileo Galilei in 1633 by that same Inquisition (Sing, 2005, pp. 70-74) can be mentioned. Giordano Bruno wrote many books, of which one had the title “About the infinite universe and the worlds” - “Dell’infinito universe e mondi” - and lectured in many places in Europe (Paris, Oxford, Marburg, Wittenberg, Prague, Helmstedt, Frankfurt) (Störig, 2008, p. 137). This all did not save him from the Inquisition’s death penalty after being betrayed by his host in Venice during an invited visit in 1593 and after being kept in jail for seven years by the Inquisition, without ever renouncing his views on a (heliocentric) universe. This again illustrates the ability of human minds towards completely conflicting views, up to the utmost extreme and revolting point of the destruction in those earlier times of the mind of the opponent in order to “protect”, to the extreme, a paradigmatic/dogmatic point of view.

Another abandoned paradigm was Descartes’ “mechanical” universe without a vacuum but space consisting of very small "particles", interacting in a pure mechanical way (through collisions). Descartes was convinced about the concept of streams of such interacting small particles in space in which a planet then drift as a boat floats on a river (Guicciardini, 2005, pp. 14-15).The findings of Newton regarding gravitational attraction forces between our sun and planets completely eradicated Descartes’ concept of space.

In his “Principia”, Newton defined as a man of genius absolute time, absolute space and absolute velocity. However he was unable to present experimental proof of their existence. The succeeding controversy by philosophers and scientists (e.g. by Mach) culminated in the rejection of absolute space. The Michelson and Morley experiment, as described within their paper “On the relative motion of the Earth and the Luminoferous Ether” (1887) is considered as one of the most important experiments on physics. The null-result from their experiment resulted in a new paradigm.

In science, graphical representations assist in describing the phenomena, occurring in reality. Such representations are indicated as models. John von Neumann stated : “The sciences mainly make models. By a model is meant a mathematical construct which, with the addition of certain verbal interpretations, describes observed phenomena”. Also Husserl reproached the situation in which science is wrongly considered by many people/scientists to "show the world as it is". Many scientists in fact only "think from within their box" (as a result from their training), without realizing any longer that science is merely a construction that tries to objectify the (outside) world. An extreme "thinking from within the box" can be compared to authoritative "dogmatic" thinking. For those scientists, paradigms as published in the scientific literature can not be disputed since in their minds, the paradigms are and can only be "true", since they are published and since they "believe" in them from specific experimental results. Regarding the "many proofs by experiments"-argument : have a look at my multiple critiques in my publication regarding paradigms such as the Michelson-Morley experiment paradigm, the Lorentz contraction paradigm, the light clock paradigm, Mach's relativity paradigm, the falling elevator relativity paradigm, the relativity of simultaneity paradigm, the "possibility to travel in the future" paradigm (Langevin's twin paradox), the "mirror in the train" paradigm, the Mercury perihelion "anomaly" relativistic solution paradigm, the relativistic bending of starlight by the sun paradigm (the Eddington experiment paradigm) etc.

The graphical/mathematical and linguistic (verbal) model approach in science is then expected to at least correspond as close as possible to reality (to save the phenomena). It is custom practice in physiscs/optics to graphically present light phenomena as “rays of light”, thus through a simple representation by geometrical lines. Consequently, if such a graphical representation would show an inconsistency regarding the real light (photons) phenomena, it should be possible to demonstrate that inconsistency experimentally. Indeed, as will be shown on this website and from a specific laser experiment, the approach of describing photon phenomena through geometrical lines or “rays of light”, shows to NOT save the photon phenomena. From Popper’s falsification principle, it is known that a paradigm becomes questionable (even obsolete) if a severe experimental anomaly can be presented which does not fit the paradigm. Such important anomaly was in fact registered in a laser experiment and is presented here.

1.2 Early history. Views of ancient Greek philosophers on matter, movement, time and space.

Profound philosophical reflections on space, time, matter and velocity already date from the early Greek philosophers in the pre-Socratic period. Anaximander described the earth as floating in space (Störig, 2008, p. 132). Leucippus and his student Democritus (born 460 BCE) believed that all matter consisted of indivisible elements, called “atoma” (Störig, 2008, p. 144). Next to atoma, Democritus also supported the existence of “void” (vacuum) since void allows the atoma to move. According to Democritus, atoma do not contain any void. He contradicted Parmenides (born 540 BCE) who believed that “movement” was impossible (Störig, 2008, p. 137). In Parmenides’ mind, the displacement of an object from one location to a new location would demand empty space, which the object could move to. However, he considered empty space as “nothing” and, since in his mind “nothing does not exist” he also denied the existence of movement. To Parmenides, movement was thus only an illusion in the human’s mind.

Parmenides’ student Zeno is famous for his paradoxes on movement (Störig, 2008, p. 138). One paradox by Zeno involved the tale of a contest between Achilles and a turtle. The distance between Achilles and the turtle would keep going on to be halved forever, to the extent that Achilles would never be able to catch on with the turtle (Hamlyn, 1993, pp. 29-30). Another paradox involves a flying arrow: according to Zeno, the arrow can be considered to be “at rest at each instant”. Therefore the arrow trajectory is merely a collection of positions “at complete rest”. Zeno concluded that movement is thus not existing. The philosophical purpose of Zeno’s paradoxes was to point to inconsistencies in opinions/views, in a way that human perceptions need to be questioned (Störig, 2008, p. 139).

It could be remarked that the Greek philosophers were in fact very near the concept of the division in infinitely small intervals of time or distance with respect to the movement of material objects (arrow “at rest at each instant” ; “forever halving” distance between Achilles and the turtle) along their trajectories. It is indeed a somewhat limited step from Zeno’s paradoxes to extend a reasoning towards a division of time into an infinitesimal small period “dt” and an according infinitesimal small distance “ds”, travelled by the material object. This results into the instantaneous travelled distance “ds” during the time interval “dt” resulting in the instantaneous velocity “v=ds/dt”.

As well Democritus as Parmenides and Zeno were reflecting upon the notions of “void” (space, vacuum) and movement of material objects but were opposed in conviction. This also illustrates the inconclusive way in which human minds function and still functions nowadays : individuals can produce completely opposing perceptions while arguing that their personal view is correctly representing the reality, outside their minds. Since there is only one single reality outside the human brain, it is thus clear that the simultaneous occurrence of (opposing) multiple models in the minds of philosophers or scientists are indicative for the limitations of model-approaches. From the fact of several conflicts of minds during the history of science, the historic existence of wrong paradigms is stressed and therefore also the need to oppose those. Wrong paradigms are indeed still plausible today.

Leucipus and Democritus believed in an “empty space” in which the “atoma“ (the “dense” particles without any void) are present and can move (Guth, 1998, p. 15). Needless to state that even nowadays there is no clear “what is” understanding of space or matter (particles). Modern science has used the word “atom” for the configuration of an extremely small “atom” nucleus consisting of protons and neutrons while electrons rotate in space around the nucleus. Since atom nuclei can be divided (nuclear fission) the word “atom” is somewhat doing wrong towards Democritus’ definition of “atoma” to be the smallest indivisible particles. Nowadays, e.g. leptons (Guth, 1998, p. 134) are considered to be elementary indivisible particles, which thus could meet the "definition" by Democritus. Even if such “elementary” particles in the end would be proven to be further divisible, the new “elementary” particle could then end up to be Democritus’ ultimate “atoma”.

The notions matter, space and movement in the minds of those early philosophers evidently were a source of inspiration for later philosophers when defining the concept of velocity of material objects (build from atoms). Philolaus (470 BC) already claimed that the earth rotates around the sun (Singh, 2005, p. 27). Aristarchos (310 BC) even expanded such vision into all known (at that time visible) planets rotating around the sun (even in the correct orbit order) while the stars are in a “fixed” position (Singh, 2005, pp. 27-29).

The heliocentric view of Philolaus and Aristarchos was however completely rejected by Plato (428 BC) and Aristotle (384 BC) (Sing, 2005, pp. 31-34). They supported a geocentric universe model, consisting of transparent crystal spheres rotating around a stationary earth while fixing the planets, sun and stars on the surface of the corresponding rotating spheres. Ptolemy added mathematical “models” to that perception of a geocentric universe on the basis of nested circles and epicycles (Singh, 2005, pp. 34-37).


1.3 History. Galileo Galilei and Isaac Newton on motion and time. Mach's critique on absolute velocity.

Galileo (1564-1642) used rolling spheres on ramps, at different angles, in order to measure their trajectory travelling time intervals (Hamlyn, 1993, p. 144; Mugnai, 2005, pp. 90-91). He deduced from the data a mathematical relation between distance and the square of time. Galileo also pointed to the need of having a reference point when observing motion. He stated that a person who is travelling in a ship while being present in a windowless space, thus without any visual contact with the ship’s surroundings, is unable to conclude if and how fast (s)he is moving when sailing at a constant speed (Singh, 2005, pp.93-94). In that respect, Galileo introduced the concept of relativity (Singh, 2005, p.94). According to Galileo, movement of an object can only be characterized relative to a second material object ("at rest") as the reference.

A leap in the perception of velocity and time occurred when Isaac Newton defined his laws in his monumental work “Philosophiae Naturalis Principia Mathematica” (1687). As many of his contemporaries, Newton was interested in the movement of planets and studied the views of Galileo, Copernicus and Kepler. Newton reflected on the “fluent changes in time” of points in geometrical objects and from those reflections invented his fluxion method. He created the notion of momentarily velocity as an infinitesimal small displacement “ds” within an infinitesimal small time interval “dt”. Through his invention of infinitesimal calculus, Newton was able to describe our planet’s orbit and his laws on movement of material objects.

However, he ran into a serious problem since he needed to univocally define both parameter values “ds” and “dt” in the velocity equation. From Galileo’s relativity principle, the value of velocity depends upon the observer’s reference system. A person travelling in a train compartment considers her/his seat’s velocity equal to zero (since ds=0). This is obviously not the case for a person who is “at rest” beside the railway track and observes the travelling train: then the velocity of a seat is not equal to zero but equals the train’s velocity relative to the train track “at rest” (ds≠0). The definition of “velocity” thus invokes a profound philosophical problem. How solving the severe paradox, where ds=0 and ds≠0 are able to exist simultaneously in the minds of humans while there is only one single reality outside those human minds ? How to define time and how to define distance in space ? What is in fact time and what is in fact distance (as displacement in space) ?

Newton solved this paradox in a brilliant way by introducing the concept of absolute time and absolute space, thus also absolute motion (Newton, (1687), pp. 77-82). With respect to time, Newton stated: “The absolute, true and mathematical time flows on itself and is uniform, without any relation to whatever external material object”. Regarding distance, evidently being linked to space, he used the same approach by stating that space is absolute, also without any relation to whatever external material object. Space itself thus "has an absolute velocity equal to zero" since space is at perfect (absolute) rest, according to the definition of absolute space. When having a material object’s velocity in that absolute space, the object thus has also an absolute velocity according to Newton’s absolute “dt” and absolute “ds” values.

Absolute velocity of an object therefore can be considered as being measured against absolute space as the ultimate reference, since being at perfect rest. Such outstanding abstract approach by Newton’s mind testifies about Newton’s genius to consider such an ultimate reference. He was even aware of the immenseness of such abstract thinking since he stated himself “It is indeed a matter of great difficulty to discover, and effectually to distinguish, the true motions of particular bodies from the apparent ; because the parts of that immovable space, in which those motions are performed, do by no means come under the observation of our senses. Yet the thing is not altogether desperate : for we have some arguments to guide us, partly from the apparent motions, which are the differences of the true motions ; partly from the forces, which are the causes and effects of the true motions.“ (Newton, (1687), p. 82).

However, this invoked one of the largest conflicts within physics. Newton was not able to prove the existence of “absolute space” and could only suggest some indirect experiments (the rotating water bucket pending from a long torsional cord (Newton, (1687), p. 81) and the thought experiment involving the rotation in free space of two masses (globes), interconnected by a cord (Newton, (1687), p. 82) to support his theory. With respect to the thought experiment involving the two globes he stated “And thus we might find both the quantity and the determination of this circular motion, even in an immense vacuum, where there was nothing external or sensible with which the globes could be compared.” Despite the views of a genius, the lack of experimental proof (as he indicated himself by stating “because the parts of that immovable space, in which those motions are performed, do by no means come under the observation of our senses”) questioned Newton’s theory on absolute space and brought about an antithesis, supported by multiple philosophers/scientists such as Leibniz and Mach.

The thought experiment of Mach is well known in which he imagines the universe to be emptied of all material objects (stars, planets, galaxies, …) except for one observer floating freely in space. Mach then stated that the floating observer is unable to measure her/his absolute velocity without a method to measure absolute velocity against the “invisible absolute space”. In fact Mach only repeated what Newton already indicated himself; see Newton’s statement “where there was nothing external or sensible with which the globes could be compared”. Mach denied the existence of absolute velocity from the lack of a conclusive experimental measuring method which would be able to use “space at rest” as a reference. Mach therefore also simply denied the existence of absolute space.

A striking “Mach versus Newton” conflict description can be found in Greene (Greene, 2006, pp. 53-54). Greene indicates that the ideas of Mach were as a “gift being send from heaven”, finally offering him a theory where only relative motion had meaning. Greene continues that, instead of selecting Newton’s reference system for motion (an invisible something called absolute space), the choice by Mach of the reference system, being based on all the visible matter in the universe, is very clear to anyone. Greene then stresses that Mach’s view was THE answer and that he, as Einstein, belonged to a large number of physicists who were excited to learn about Mach’s vision. Greene also raises the question if Newton was that much carried away with the vortex within his water bucket experiment that Newton then came up with a watery conclusion on the existence of an invisible absolute space as the absolute and ultimate reference. Greene’s description is an interesting illustration of the philosophical conflict and disbelieve within physics with respect to the definition of absolute space by Newton.

It is however the subject of this website to indeed present an experimental method which enables Mach’s floating astronaut to measure her/his real (absolute) velocity without the need of any reference to an external independent material object, while thus contradicting Mach’s view.

Human minds are able to produce faulty tenacious paradigms but in the end, tenacious human minds can also expose them.


Bauerlein R., Newton to Einstein : The Trail of Light, Cambridge University Press, 1992

Barrow J. D., Theories of Everything, Vintage, New York, 1990

Barrow J. D., The Origin of the Universe, Basic Books, New York, 1994

Boden M.E., The Creative Mind : Myths and Mechanisms, Basic Books, New York, 1992

Braeckman A., Raymaekers B., G. Van Riel, Wijsbegeerte, Lannoo, Tielt, 2010

Bronowski J., The ascent of man, Science Horizon Inc., 1973

Bruno Giordano,,_Giordano

Casti J.L., Paradigms Lost, William Morrow, New York, 1989

Casti J.L., Alternate Realities. Mathematical Models of Nature and Man, John Wiley and Sons Ltd, 1989

Casti J.L., Searching for Certainty : What Scientists Can Learn about the Future, William Morrow, New York, 1991

Casti J.L., Reality Rules : II. Picturing the world in mathematics - The Frontier, John Wiley and Sons Ltd, 1997

Clifford W., Was Einstein Right ?, Basic Books, New York, 1999

Cohen J., Stewart I., The Collapse of Chaos. Discovering Simplicity in a Complex World, Viking, New York,1994

de Boer Th. et al., De verbeelding van het denken. Geïllustreerde geschiedenis van de westerse en oosterse filosofie, Contact, Amsterdam, Antwerpen, 2004

Davies P.C.W., Space and Time in the Modern Universe, Cambridge University Press, Cambridge, 1977

Davies P.C.W., About Time, Einstein's unfinished revolution, Penguin Books Ltd, 1996

Davies P.C.W., God & The New Physics, Penguin Books Ltd, 2006

Delius C., Gatzmeier M., Sertcan D., Wünscher K., Geschichte der Philisophie von der Antike bis heute, Tandem Verlag GmbH, Königswinter, 2005

Descartes' mechanical view, and

Ferris T., The Mind's Sky, Bantam, New York, 1992

Feynmann R.P., QED : The Strange Theory of Light and Matter, Princeton University Press, Princeton, 1985

Fuller S., Kuhn vs Popper, Icon, 2003

Fuller S., Science, Acumen Publishing, 2009

Giere R.N., Explaining Science, University of Chicago Press, Chicago, 1988

Giere R.N., Scientific Perspectivism, University of Chicago Press, Chicago, 2010

Gott J.R., Time Travel in Einstein's Universe, Houghton Mifflin, Boston, 2001

Greene B., The Elegant Universe, Random House, 2000

Guicciardini N., Newton – Alchemist, filosoof en natuurwetenschapper (Dutch edition of the book “Newton – un filosofa della natura e il sistema del mondo”), Natuurwetenschap & Techniek, Van Veen Magazines, Amsterdam, 2005  

Greene B., De ontrafeling van de kosmos (Dutch edition of the book “The Fabric of the Cosmos”), het Spectrum, Amsterdam, 2006

Griffiths D. J., Introduction to electrodynamics, Prentice Hall, New Jersey, 1999  

Guth A., Het uitdijende heelal, Wat gebeurde er voor de oerknal ? (Dutch edition of the book “The Inflationary Universe”), Contact, Amsterdam, 1998

Hawking S., Penrose R., The Nature of Space and Time, Princeton University Press, Princeton, 1996  


Horsten L., Douven I., Weber E., Wetenschapsfilosofie (Dutch edition of the book “Philosophy of Science”), Van Gorcum, Assen, The Netherlands, 2007  

Hamlyn D.W., Westerse filosofie, Een geschiedenis van het denken (Dutch edition of the book “A History of Western Philosophy”), Atrium, Alphen aan den Rijn, The Netherlands, 1993

Kaku M., Einstein's Cosmos, Weidenfeld & Nicolson, 2004

King P.J., One hundred Philosophers, Quarto Publishing Plc, London, 2010

Krauss L.M., Fear of Physics. A Guide for the Perplexed, Basic Books, New York, 1993

Kuhn T., The Structure of Scientific Revolutions, University of Chicago Press, Chicago, 1962  

Kuhn S.T., ;  

Law S., Filosofie (Dutch edition of the book “Eyewitness Companions – Philosophy”), Focus, Houten, The Netherlands, 2007  

Mach E., ;

Michelson A., Morley E., On the Relative Motion of the Earth and the Luminoferous Ether, American Journal of Science, No. 203, Vol. XXXIV, November 1887, pp. 333-345,

Mosley M., Lynch J., The Story of Science. Power, Proof and Passion, Octopus Publishing, London, 2010  

Mugnai M., Leibniz - Filosoof en mathematicus (Dutch edition of the book “Leibniz, vita di un genio tra logica, matematica e filosofia”), Natuurwetenschap & Techniek, Van Veen Magazines, Amsterdam, 2005  

Newton I., Philosophiae Naturalis Principia Mathematica,, book is freely downloadable as newtonspmathema00newtrich_bw.pdf

Penrose R., The Emperor's New Mind : Concerning Computers, Minds and the Laws of Physics, Oxford, 1989  

Paradigm (shift), and

Popper K., The logic of Scientific Discovery, Routledge, 2002  

Singh S., De oerknal (Dutch edition of the book “Big Bang”), De Arbeiderspers, Amsterdam, 2005 Störig H.J., Geschiedenis van de filosofie (Dutch edition of the book “Kleine Weltgeschichte der Philosophie”), het Spectrum, Utrecht, The Netherlands, 2008

van Fraassen B. C., The Scientific Image, Clarendon Press, Oxford, 1980

van Fraassen B. C., The Empirical Stance, Yale, University Press, New Haven & London, 2002

van Fraassen B. C., Scientific Representation: Paradoxes of Perspective, Clarendon Press, Oxford, 2008

Vermij R., Huygens - De mathematisering van de werkelijkheid, Veen Magazines, Diemen, 2007

Wolpert L., The Unnatural Nature of Science, Faber & Faber, 1993