<i>Theories of Light from Descartes to Newton</i>

Sabra, Adam; Stork, David G.

doi:10.1063/1.2915547

Cited by 50 publications

(83 citation statements)

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“…Certamente existiram conflitos e 12 O nome de Huygens nessa e em outras cartas publicadas nas Philosophical Transactions foi substituído por "N". 13 John Hampden (1653-1696).…”

Section: Newton Versus Huygens No Final Do Século XVIIunclassified

Newton versus Huygens: como (não) ocorreu a disputa entre suas teorias para a luz

Moura

2016

Cad. bras. Ens. Fís.

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“…Certamente existiram conflitos e 12 O nome de Huygens nessa e em outras cartas publicadas nas Philosophical Transactions foi substituído por "N". 13 John Hampden (1653-1696).…”

Section: Newton Versus Huygens No Final Do Século XVIIunclassified

Newton versus Huygens: como (não) ocorreu a disputa entre suas teorias para a luz

Moura

2016

Cad. bras. Ens. Fís.

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“…Newton followed Descartes in deriving Snell's Law by an analogy of a particle reaching a layer where it is either attracted downwards or repelled upwards (Sabra 1981;Barth 1992).…”

Section: Introductionmentioning

confidence: 98%

“…Before Al Haytham, Ibn Sahl had proposed a law of refraction which is the same as Snell's law, probably as a mathematical model (Rashed 1992). In the 17th century Snell and Descartes proposed ''Snell's law'' (Sabra 1981). Descartes derivation of the law in his Dioptrique of 1637 was based on an analogy with a ball breaking through a canvas.…”

Section: Introductionmentioning

confidence: 99%

Developing Ideas of Refraction, Lenses and Rainbow Through the Use of Historical Resources

Mihas

2006

Sci & Educ

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The paper examines different ways of using historical resources in teaching refraction related subjects. Experimental procedures can be taught by using Ptolemy's and Al Haytham's methods. The student can check the validity of the approximations or rules which were presented by different people. The interpretation of the relations is another subject. Refraction phenomena were interpreted either by the principle of least time or by particles or by waves. The law of refraction can be used as an example of a law which was discovered but put aside. The use of the law to construct lenses can be seen in Ibn Sahl's hyperbolical lenses. Al Farisi's method of ''cones'' is used for the interpretation of the rainbow. Al Farisi's model was discovered again by Descartes. These models were not able to explain the supernumerary arcs. For this reason a simple wave model is presented. The models proposed by Al Haytham of atmospheric refraction can be used to show that refraction actually cannot be considered as the cause of the change of the size of the moon. Finally Huygens model of refraction in the atmosphere is used to introduce the wave fronts as more fundamental than rays.

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“…There were published many valuable monographs, e.g. Isaac Newton in 1730, Johann Wolfgang Goethe in 1810, W.W. Abney in 1913, Vasco Ronchi in 1970, A.I. Sabra in 1981, Robert A. Krone in 1999, Klaus Hentschel in 2003, Rolf G. Kuehni in 2003, John A. Medeiros in 2006 The search for the key to unlock the secret code of these strange Frauhofer lines in the solar spectrum attracted several researchers in the 19 th century.…”

Section: Introductionmentioning

confidence: 99%

On the Trigonometric Descriptions of Colors

Stávek¹

2016

APR

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An attempt is presented for the description of the spectral colors using the standard trigonometric tools in order to extract more information about photons. We have arranged the spectral colors on an arc of the circle with the radius R = 1 and the central angle θ = π/3 when we have defined cos (θ) = λ 380 /λ 760 = 0.5. Several trigonometric operations were applied in order to find the gravity centers for the scotopic, photopic, and mesopic visions. The concept of the center of gravity of colors introduced Isaac Newton. We have postulated properties of the long-lived photons with the new interpretation of the Hubble (Zwicky-Nernst) constant H 0 = 2.748… * 10 -18 kg kg -1 s -1 , the specific mass evaporation rate (SMER) of gravitons from the source mass. The stability of international prototypes of kilogram has been regularly checked. We predict that those standard kilograms due to the evaporation of gravitons lost 8.67 μg kg -1 century -1 . The energy of long-lived photons was trigonometrically decomposed into three parts that could be experimentally tested: longitudinal energy, transverse energy and energy of evaporated gravitons. We tested the properties of the long-lived photons with the experimental data published for the best available standard candles: supernovae Type Ia. There was found a surprising match of those experimental data with the model of the long-lived photons. Finally, we have proposed a possible decomposition of the big G (Newtonian gravitational constant) and the small kappa κ (Einsteinian gravitational constant) in order to get a new insight into the mysterious gravitational force and/or the curvature concept.Keywords: spectral colors on an arc, trigonometrical tools, gravity centers of visions, specific mass evaporation rate (SMER), stability of the Urkilogram, long-lived photons, longitudinal energy, transverse energy, evaporation of gravitons, decomposition of the big G, decomposition of the small κ.

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Theories of Light from Descartes to Newton

Cited by 50 publications

References 0 publications

Newton versus Huygens: como (não) ocorreu a disputa entre suas teorias para a luz

Newton versus Huygens: como (não) ocorreu a disputa entre suas teorias para a luz

Developing Ideas of Refraction, Lenses and Rainbow Through the Use of Historical Resources

On the Trigonometric Descriptions of Colors

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