Globalization and Civilizations

Mozaffari, Mehdi

doi:10.4324/9780203217979

Cited by 9 publications

(7 citation statements)

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“…Similarly for b r 0 , we can attempt to fit the form of the tidal stress signal to proposed free functions. An interesting result found in the analysis of these theories [55,56] is that the inner bubble profiles do not change significantly for µ → z a and a = 1 or ν → 1/w b and b = 1/2, meaning we are guaranteed a strong inner bubble signal and that the best fitting for solutions will come from the outer bubble. We can try to fit to parameterised free functions, such as [53] with models of free function.…”

Section: B Positive Resultsmentioning

confidence: 91%

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Tests of modified gravity theories in the Solar System

Mozaffari

2015

Can. J. Phys.

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We review the case for testing preferred acceleration scale theories of gravity (sometimes falling under the guise of MOdified Newtonian Dynamics) in the Solar System using the forthcoming LISA Pathfinder (LPF) mission. Using a combination of analytical and numerical results, we suggest that different types of theory should be detectable using the predicted anomalous tidal stresses effects around the saddle points of the Newtonian gravitational field. The saddle point bubbles expected extent of ∼ 400 km are to be contrasted with potential miss parameters of ≤ 10 km, making such a test in easy reach of LPF. We also consider routes to constraining our theories from data, based on scenarios of both null and positive results.

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Section: B Positive Resultsmentioning

confidence: 91%

“…where the H ij is a universal (and complicated [55]) function, which hides the contribution of the free function. This result has two interesting uses, firstly it allows us to generate templates for general values of κ and a 0 from those for fiducial values, simply by rescaling them.…”

Section: B Positive Resultsmentioning

confidence: 99%

Tests of modified gravity theories in the Solar System

Mozaffari

2015

Can. J. Phys.

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“…We now repeat this calculation for type II theories, mimicking the calculation of φ in [17], for a free function of form (8). The potential satisfies ansatz: φ = − a n 0…”

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confidence: 99%

“…and search for a solution numerically (using techniques presented, in a different context, in [34]). We find for m = 1.1, for example, that α = 1.25 (instead of α = 9, expected if the curl field could be neglected).…”

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confidence: 99%

“…For this reason one may expect the presence of "MONDian habitats" in the small regions encasing the saddle points of the gravitational potential in the Solar System, the points where the Newtonian force vanishes [13]. The prospect of a MONDian saddle test has motivated extensive work [14][15][16][17][18][19], with Lisa Pathfinder (LPF) in mind, but not only [20].…”

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confidence: 99%

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Time delays across saddles as a test of modified gravity

Magueijo¹,

Mozaffari²

2013

Class. Quantum Grav.

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Modified gravity theories can produce strong signals in the vicinity of the saddles of the total gravitational potential. In a sub-class of these models this translates into diverging time-delays for echoes crossing the saddles. Such models arise from the possibility that gravity might be infrared divergent or confined, and if suitably designed they are very difficult to rule out. We show that Lunar Laser Ranging during an eclipse could probe the time-delay effect within meters of the saddle, thereby proving or excluding these models. Very Large Baseline Interferometry, instead, could target delays across the Jupiter-Sun saddle. Such experiments would shed light on the infrared behaviour of gravity and examine the puzzling possibility that there might be well-hidden regions of strong gravity and even singularities inside the solar system.

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Global/Local Issues in Electroacoustic Music for the Cinema of the Real: A case study

Cipriani¹,

Latini²

2008

Org. Sound

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The authors describe various experiences regarding the use of sonic materials from local musical cultures and soundscapes in the field of electroacoustic music as applied to the creative documentary. The introduction concentrates on the general characteristics of the process of ‘globalisation’ now underway and on the various different interpretations of it that have been developed over the last fifteen years.A number of methodological and ethical questions are then asked in relation to the debate regarding the global/local dichotomy in the context of electroacoustic and audiovisual elaboration, especially when phonic material originating from the most varied geographic-cultural areas is artistically restructured and reconfigured.In the third part of the article the accent is placed on the personal experiences of the authors regarding the production of pieces of electroacoustic music and documentaries realised in Morocco, China and Lapland.In the last section the article concentrates on a possible diachronic perspective (i.e. studying a phenomenon in its passage through time) by means of which one can come to a relationship with soundscape sounds, and some sonic and visual examples from works realised in Catania and London are supplied.

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Globalization and Civilizations

Cited by 9 publications

References 0 publications

Tests of modified gravity theories in the Solar System

Tests of modified gravity theories in the Solar System

Time delays across saddles as a test of modified gravity

Global/Local Issues in Electroacoustic Music for the Cinema of the Real: A case study

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