Results 1 to 10 of about 233,126 (310)

Gravitation

open access: yesTidskrift för Litteraturvetenskap, 2021
Gravitation: Modes of Reading in the Anthropocene In this article, I suggest ‘gravitation’ as a new way of reading in and for the anthropocene, which is characterised by environmentally destructive ‘social acceleration’.
Pia Ahlbäck
doaj   +1 more source

Modification of earth's gravity sphere [PDF]

open access: yesTheoretical and Applied Mechanics, 2013
The standard radius of the Earth's gravity sphere is 917.000 km. Here we present that the radius is 1.400.000 km.
Vujičić Veljko A.
doaj   +1 more source

The Gravitation of the Moon Plays Pivotal Roles in the Occurrence of the Acute Myocardial Infarction

open access: yesEnvironmental Health Insights, 2008
Acute myocardial infarction (AMI) is a social burden. However, being able to predict AMI could lead to prevention. A previous study showed only the relation between the lunar phase and the occurrence of AMI, but the period it takes for the moon to orbit ...
Ryotaro Wake   +12 more
doaj   +2 more sources

Interaction Between Macroscopic Quantum Systems and Gravity

open access: yesFrontiers in Physics, 2022
We review experiments and theoretical models about the possible mutual interplay between the gravitational field and materials in the superconducting state or other macroscopic quantum states.
A. Gallerati   +3 more
doaj   +1 more source

The total mass of the early-type galaxy NGC 4649 (M60) [PDF]

open access: yesSerbian Astronomical Journal, 2008
In this paper the problem of the total mass and the total mass-to-light ratio of the early-type galaxy NGC 4649 (M60) is analyzed. Use is made of two independent techniques: the X-ray methodology which is based on the temperature of the X-ray halo of NGC
Samurović S., Ćirković M.M.
doaj   +1 more source

Parcours, pratique théorique et documents scientifiques « privés » du physicien Jacques Solomon

open access: yesComptes Rendus. Physique, 2022
Jacques Solomon (1908-1942) is an important figure in the theoretical physics of the 1930s in France. His published works and the personal documents that have been entrusted to me, reveal specific writing processes and theoretical elaborations, which his
Bustamante De La Ossa, Martha-Cecilia
doaj   +1 more source

Weak Deflection Angle and Shadow by Tidal Charged Black Hole

open access: yesUniverse, 2021
In this article, we calculate the deflection angle of a tidal charged black hole (TCBH) in weak field limits. First, we obtain the Gaussian optical curvature and then apply the Gauss–Bonnet theorem on it.
Wajiha Javed, Ali Hamza, Ali Övgün
doaj   +1 more source

Scalar–Tensor–Vector Modified Gravity in Light of the Planck 2018 Data

open access: yesUniverse, 2021
The recent data release by the Planck satellite collaboration presents a renewed challenge for modified theories of gravitation. Such theories must be capable of reproducing the observed angular power spectrum of the cosmic microwave background radiation.
John W. Moffat, Viktor Toth
doaj   +1 more source

Aligned electric and magnetic Weyl fields [PDF]

open access: yes, 2003
We analyze the spacetimes admitting a direction for which the relative electric and magnetic Weyl fields are aligned. We give an invariant characterization of these metrics and study the properties of its Debever null vectors.
Joan Josep Ferr, Juan Antonio Sáez
core   +2 more sources

The cause of axial rotation of the scoliotic spine [PDF]

open access: yes, 1991
To explain the cause of axial rotation in a scoliotic vertebral column, the influence of the gravitation force on a spine with a C-scoliosis has been investigated by means of a mechanical model. In this model the gravitation force takes hold of the three-
Cool, J.C.   +3 more
core   +2 more sources

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