BOOK REVIEWS: Treatise on Light

Huygens, Christiaan

doi:10.1119/1.2349065

Cited by 18 publications

(23 citation statements)

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“…This repulsion is conditioned by the quantum potential Q represented by the second term In Eq. (18). In this case, the diffusion coefficient D reads…”

Section: Hydrodynamics Of Sqsmentioning

confidence: 99%

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Superfluid Quantum Space and Evolution of the Universe

Sbitnev¹,

Fedi²

2017

Trends in Modern Cosmology

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We assume that dark energy and dark matter filling up the whole cosmic space behave as a special superfluid, here named "superfluid quantum space." We analyze the relationship between intrinsic pressure of SQS (dark energy's repulsive force) and gravity, described as an inflow of dark energy into massive particles, causing a negative pressure gradient around massive bodies. Since no superfluid has exact zero viscosity, we analyze the consequences of SQS's viscosity on light propagation, and we show that a static Universe could be possible, by solving a modified Navier-Stokes equation. Indeed, Hubble's law may actually refer to tired light, though described as energy loss due to SQS's nonzero viscosity instead of Compton scattering, bypassing known historical problems concerning tired light. We see that SQS'sviscositymayalso account for the Pioneer anomaly. Our evaluation gives a magnitude of the anomalous acceleration a P = ÀH Λ c = À8.785 10 À10 ms À2 . Here, H Λ is the Hubble parameter loaded by the cosmological constant Λ. Furthermore, the vorticity equation stemming from the modified Navier-Stokes equation gives a solution for flat profile of the orbital speed of spiral galaxies and discloses what one might call a breathing of galaxies due to energy exchange between the galactic vortex and dark energy.

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“…This repulsion is conditioned by the quantum potential Q represented by the second term In Eq. (18). In this case, the diffusion coefficient D reads…”

Section: Hydrodynamics Of Sqsmentioning

confidence: 99%

“…Such a philosophy is extremely convenient in the analysis of motion based on Newton's mechanics [17]. Huygens championed a different concept, according to which, the whole space is filled with a special substance, the ether [18]. In his view, each point in space was a virtual source of light waves.…”

Section: Introductionmentioning

confidence: 99%

Superfluid Quantum Space and Evolution of the Universe

Sbitnev¹,

Fedi²

2017

Trends in Modern Cosmology

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“…In 1676 the Danish astronomer Olaf Roemer (1644-1710), working in Paris, turned his telescope toward these same moons of Jupiter [4]. Each moon has its own characteristic period of revolution.…”

Section: The Doppler Effectmentioning

confidence: 98%

A historical view of imaging systems and technology

Robinson

1989

Int J Imaging Syst Tech

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When approached from a historical viewpoint the development of many important imaging systems throughout history often share common ground. Extremely important was the development of the idea of mathematical projection which provides methods for making an image that conformally represents the object. The prime example is the discovery of the stereographic projection by Hipparchus of Nicaea in the second century BC. The stereographic projection provided the basis for the astrolabe, an astronomical device that acted both as an instrument of observation and as an analog computer. The stereographic projection and similar ones also provided the basis for the world maps of the ancients which utilized a grid of longitude and latitude. When the ancient Greek books were rediscovered in the Renaissance, the maps provided the impetus for the age of exploration. The Mercator projection of the sixteenth century was obtained as a logarithmic transformation of the stereographic projection. The Mercator projection provided sea captains with maps that had a rectangular grid of latitude and longitude and also had the property that straight lines represented courses of constant compass directions. The development of the telescope and microscope in the early seventeenth century provided means to obtain images that could not be seen by the unaided eye. Galileo's discovery of the moons of Jupiter led to Roemer's determination in 1676 that light travels at a finite velocity. Unknowingly, Roemer also discovered the relativistic Doppler effect, which in the present century helped to establish our concept of the expanding universe. The relativistic Doppler factor mathematically is none other than the expression for the stereographic projection of Hipparchus. The development of high energy physics in this century has led to images of the microworld of subatomic particles. In this environment Einstein's equation E = mc2 finds verification. This equation is a result of the theory of special relativity. The basic mathematics of special relativity is contained in the Lorentz transform. Again we can return to Hipparchus, because the Lorentz transform follows from a sequential application of the stereographic projection.

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“…Though the wave nature of light had been proposed by Huygens in 1678 and confirmed by Thomas Young's famous double slit interference experiment in 1804, it had yet to impact methods to image the retina. But in the 1990's, optical coherence tomography harnessed the wave nature of light, thereby achieving an unprecedented axial resolution in retinal images.…”

Section: Improvements In Axial Resolution Through Octmentioning

confidence: 99%

Imaging single cells in the living retina

Williams

2011

Vision Research

149

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A quarter century ago, we were limited to a macroscopic view of the retina inside the living eye. Since then, new imaging technologies, including confocal scanning laser ophthalmoscopy, optical coherence tomography, and adaptive optics fundus imaging, transformed the eye into a microscope in which individual cells can now be resolved noninvasively. These technologies have enabled a wide range of studies of the retina that were previously impossible.

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BOOK REVIEWS: Treatise on Light

Cited by 18 publications

References 0 publications

Superfluid Quantum Space and Evolution of the Universe

Superfluid Quantum Space and Evolution of the Universe

A historical view of imaging systems and technology

Imaging single cells in the living retina

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