Slope Point, The Southernmost Tip On New Zealand’s South Island, Is Hit With Such Persistently Violent

Exchanges of identity in deep space

By reproducing the complexity of the cosmos through unprecedented simulations, a new study highlights the importance of the possible behaviour of very high energy photons

Like in a nail-biting thriller full of escapes and subterfuge, photons from far-off light sources, such as blazars, could go up against a continuous exchange of identity in their journey through the Universe. This is an operation that would allow these very tiny particles of light to escape an enemy which, if encountered, would annihilate them. This is the phenomenon studied by a group of researchers from the University of Salento, Bari, the National Institute for Nuclear Physics (INFN), the National Institute for Astrophysics (INAF) and SISSA thanks to brand new simulation models that reproduce the complexity of the cosmos as never before. Normally, very high energy photons (gamma rays) should “collide” with the background light emitted by galaxies transformed into pairs of matter and antimatter particles, as envisaged by the Theory of Relativity. For this reason, the sources of very high energy gamma rays should appear significantly less bright than what is observed in many cases.

A possible explanation for this surprising anomaly is that light photons are transformed into hypothetical weakly-interacting particles, “axions” which, in turn, would change into photons, all due to the interaction with magnetic fields. With these metamorphoses, a part of the photons would escape interaction with the intergalactic background light that would make them disappear. The importance of this process is emphasised by the study published on Physical Review Letters, which re-created an extremely refined model of the Cosmic Web, a network of filaments composed of gas and dark matter present throughout the Universe and of its magnetic fields. The aforementioned effects are now awaiting comparison with those obtained experimentally through Cherenkov Telescope Array new generation telescopes.

In this research, through complex and unprecedented computer simulations made at the CSCS Supercomputing Centre in Lugano, scholars have reproduced the so-called Cosmic Web and the magnetic fields associated with this to investigate the possibility, advanced from previous theories, that photons from a light source are transformed into axions, hypothetical elementary particles, on interacting with an extragalactic magnetic field. Axions could then be retransformed into photons by interacting with other magnetic fields. Researchers Daniele Montanino, Franco Vazza, Alessandro Mirizzi and Matteo Viel explain: “Photons from luminous bodies disappear when they encounter extragalactic background light (EBL). But if on their journey they head into these transformations as envisaged by these theories, it would explain why, in addition to giving very important information on processes that occur in the universe, distant celestial bodies are brighter than expected from an observation on Earth. These changes would, in fact, enable a greater number of photons to reach the Earth”.

In the simulations made by scientists, thanks to the wealth of magnetic fields present in the Cosmic Web’s filaments recreated with the simulations, the conversion phenomenon would seem much more relevant than predicted by previous models: “Our simulations reproduce a very realistic picture of the cosmos’ structure. From what we have observed, the distribution of the Cosmic Web envisaged by us would markedly increase the probability of these transformations”. The next step in the research? To compare simulation results with the experimental data obtained through the use of the Cherenkov Telescope Array Observatories detectors, the new-generation astronomical observatories, one of which is positioned in the Canary Islands and the other in Chile, that will study the Universe through very high energy gamma rays.

IMAGE….Through complex computer simulations, researchers have reproduced the so-colled Comsc Web and its magnetic fields Credit Vazza F., Bruggen M. Gheller, C., Wang P.

CGG POP-UP SHOW | May 13th 2015 | art space tetra | Fukuoka Japan

The Contemporary Guerilla Gallery Berlin is a project by a group of Berlin-based artists. The experimental project explores new ways of dealing with the contemporary art market. Part of the concept of CGG Berlin is independent art selling on eBay, another part is making pop-up exhibitions without external curatorial influence.

At art space tetra we show video works of five of the CGG artists. The video works have a documentary character and thematize the process of art production.

At the opening Hannah Reber and Gert-Jan Akerboom will be present and give a brief introduction of the project and answer questions after the screening.

The CGG Berlin pop-up at art space tetra shows works by:

Hannah Reber (www.hannahreber.de)

Gert-Jan Akerboom (www.gertjanakerboom.com)

Ortrun Stanzel (www.ortrunstanzel.de)

Ties Ten Bosch (www.tiestenbosch.com)

Inken Reinert (inken-reinert.de)

art space tetra

2-15 Susakimachi, Hakata Ward, Fukuoka, Fukuoka Prefecture 812-0028, Japan

http://www.as-tetra.info/archives/2015/150513065136.html#

I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.

Stephen Hawking (via fyp-science)

“Ratio of oscillations.”  La méthode graphique dans les sciences expérimentales et principalement en physiologie et en médecine. 1885.

Native Gold with White Quartz

Eagle’s Nest Mine, Placer County, California

#SCOPENewYork 2016 | Exhibitor Highlight | Nil Gallery - Booth B05

[Ardan Ozmenoglu, Olive Tree, 2008, paint on glass, 31 x 31 in.]

@ardanozmenoglu

Find out more at SCOPE-ART.COM

Adjustable Wood Lamp ‘Goldberg’

The adjustable ‘Goldberg’ lamp by Atelier Akerboom is a handmade wooden lamp. By adjusting the 31 openings of the lamp you can control how much light it gives out in any direction. The lamp can be used as a hanging (pendant) lamp or as table or floor lamp. The lamp is available in different colors (see information sheet) and in two sizes (30cm or 50cm diameter).

This special design is named after Michael Goldberg (1902-1990) who described the Goldberg polyhedron – a convex polyhedron made from hexagons and pentagons – first in 1937.

https://www.etsy.com/de/listing/267492092/adjustable-lamp-goldberg?ref=shop_home_active_2