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Results 1 - 16 of 16.


Astronomy / Space Science - Physics - 16.10.2017
Gravitational waves shed first light on mergers of neutron stars
This is a major breakthrough in more than one respect. The scientists of the LIGO-Virgo Collaboration (which includes the CNRS) have for the first time observed the gravitational waves emitted by the merger of two neutron stars, rather than of two black holes as in previous cases. In another first, the light emitted from the source of gravitational waves was observed in the following hours, days and weeks, by 70 other groundand space-based observatories.

Chemistry - Physics - 09.10.2017
When a porous solid retains its properties in liquid form
When a porous solid retains its properties in liquid form
Known for their exceptional porosity that enables the trapping or transport of molecules, metal-organic frameworks (MOFs) take the form of a powder, which makes them difficult to format.

Astronomy / Space Science - Physics - 27.09.2017
Gravitational waves : first joint LIGO-Virgo detection
Gravitational waves : first joint LIGO-Virgo detection
Scientists in the LIGO and Virgo collaborations have achieved the first ever three-detector observation of the gravitational waves emitted by the merger of two black holes.

Physics - Astronomy / Space Science - 22.09.2017
Highest-energy cosmic rays have extragalactic origin
Highest-energy cosmic rays have extragalactic origin
A 50-year-old debate has at last been settled: the highest-energy cosmic rays do not originate in our own Galaxy but in galaxies located tens or even hundreds of millions of light years away.

Physics - Life Sciences - 12.09.2017
Magnetic cellular
Magnetic cellular "Legos" for the regenerative medicine of the future
By incorporating magnetic nanoparticles in cells and developing a system using miniaturized magnets, researchers at the Laboratoire Matière et Systèmes Complexes (CNRS/Université Paris Diderot), in c

Astronomy / Space Science - Physics - 07.08.2017
The Sun's core makes a complete rotation in one week
The Sun’s core makes a complete rotation in one week
The rotation rate of the Sun's core has been accurately measured for the first time. The Sun, which has been remarkably stable for the past 4.6 billion years, is held together by the almost perfect equilibrium between the force of gravity, which tends to cause it to collapse, and the pressure of the thermonuclear reactions in its core.

Physics - 24.07.2017
Turbulence in planetary cores excited by tides
Turbulence in planetary cores excited by tides
Veritable shields against high-energy particles, planets' magnetic fields are produced by iron moving in their liquid core. Yet the dominant model for explaining this system does not fit the smallest celestial bodies. Researchers at the Institut de Recherche sur les Phénomènes Hors Equilibre (IRPHE, CNRS/Aix Marseille Université/Centrale Marseille) and the University of Leeds have proposed a new model suggesting that turbulence in the liquid cores is due to tides produced by gravitational interactions between celestial bodies.

Life Sciences - Physics - 20.06.2017
How phytoplankton rule the oceans
Photosynthesis is a unique biological process that has permitted the colonization of land and sea by plants and phytoplankton respectively. While the mechanisms of photosynthesis in plants are well understood, scientists are only now beginning to elucidate how the process developed in phytoplankton.

Chemistry - Physics - 19.05.2017
A new material for purifying natural gas
A new material for purifying natural gas
The fields of gas filtration and purification require materials whose porosity can be perfectly controlled.

Physics - Astronomy / Space Science - 17.05.2017
A new approach to forecasting solar flares?
A new approach to forecasting solar flares?
The emerging discipline of space meteorology aims to reliably predict solar flares so that we may better guard against their effects. Using 3D numerical models 1 , an international team headed by Etienne Pariat, a researcher at LESIA (Observatoire de Paris / CNRS / Université Paris Diderot / UPMC), has discovered a proxy that could be used to forecast an eruptive event.

Life Sciences - Physics - 03.04.2017
Electronic synapses that can learn: towards an artificial brain?
Electronic synapses that can learn: towards an artificial brain?
Researchers from the CNRS, Thales, and the Universities of Bordeaux, Paris-Sud, and Evry have created an artificial synapse capable of learning autonomously. They were also able to model the device, which is essential for developing more complex circuits. The research was published on 3 April 2017. One of the goals of biomimetics is to take inspiration from the functioning of the brain in order to design increasingly intelligent machines.

Health - Physics - 30.03.2017
Mini X-ray sensor for high-precision medical applications
Mini X-ray sensor for high-precision medical applications
The ability to detect X-rays on a tiny scale paves the way for high-precision medical imaging and therapies. Such detection capabilities have been achieved by researchers from the CNRS, the University of Franche-Comté (UFC), and Aix-Marseille University (AMU), who attached an X-ray sensor to the end of an optical fiber.

Materials Science - Physics - 15.02.2017
Wetting Effect on Torricelli's Law
Wetting Effect on Torricelli’s Law
Jets at the exit of the tank for similar conditions except wetting; hole radius = 1.75 mm; initial height = 10 cm. From hydrophilic to hydrophobic plate: (a) Glass, (b) Plexiglas, (c) Hydrophobic-glass. Left side: Zoom in of the jets at the hole exit to display the meniscus profiles for the different wetting conditions (i.e.

Physics - Astronomy / Space Science - 26.01.2017
New black hole simulator may shed more light on contradiction in fundamental physics
A newly proposed experiment promises to create a 'tabletop' black hole that could prove whether information is truly lost when black holes evaporate. The idea that information could be lost this way has created a paradox in our current understanding of basic physics. 43 years ago, Stephen Hawking combined quantum field theory with Einstein's theory of general relativity and discovered black hole evaporation.

Physics - Chemistry - 13.01.2017
Crystallography: Electron diffraction locates hydrogen atoms
Crystallography: Electron diffraction locates hydrogen atoms
Diffraction-based analytical methods are widely used in laboratories, but they struggle to study samples that are smaller than a micrometer in size. Researchers from the Laboratoire de cristallographie et sciences des matériaux (CNRS/Ensicaen/Unicaen), the Laboratoire catalyse et spectrochimie (CNRS/Ensicaen/Unicaen) 1 , and the Academy of Sciences of the Czech Republic have nevertheless been successful in using electron diffraction to reveal the structure of nanocrystals 2 .

Health - Physics - 02.01.2017
Nanohyperthermia softens tumors to improve treatment
Nanohyperthermia softens tumors to improve treatment
The mechanical resistance of tumors and collateral damage of standard treatments often hinder efforts to defeat cancers.