Closely Related To Sharks But With Long, Flat Bodies And Wing-like Pectoral Fins, Mobula Rays are Ideally

Stretching SpaceTime

According to general relativity, the sun’s mass makes an imprint on the fabric of spacetime that keeps the planets in orbit. A neutron star leaves a greater mark. But a black hole is so dense that it creates a pit deep enough to prevent light from escaping.

Image credit: James Provost  

Good wood - the slightly weird but rather wonderful ‘Art and Culture Production Centre’ in the remote fishing village of Kleivan in Norway, by the Scarcity & Creativity Studio, part of the Oslo School of Architecture and Design

Modular Origami Star by Maria Sinayskaya http://flic.kr/p/dJtry6

Hubble Image Captures Collision of Two Spiral Galaxies

http://www.sci-news.com/astronomy/hubble-collision-two-spiral-galaxies-04839.html

“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

Quantum tunnelling

Tunneling is a quantum mechanical effect. A tunneling current occurs when electrons move through a barrier that they classically shouldn’t be able to move through. In classical terms, if you don’t have enough energy to move “over” a barrier, you won’t. However, in the quantum mechanical world, electrons have wavelike properties. These waves don’t end abruptly at a wall or barrier, but taper off quickly. If the barrier is thin enough, the probability function may extend into the next region, through the barrier! Because of the small probability of an electron being on the other side of the barrier, given enough electrons, some will indeed move through and appear on the other side. When an electron moves through the barrier in this fashion, it is called tunneling.

Quantum mechanics tells us that electrons have both wave and particle-like properties. Tunneling is an effect of the wavelike nature.

The top image shows us that when an electron (the wave) hits a barrier, the wave doesn’t abruptly end, but tapers off very quickly - exponentially. For a thick barrier, the wave doesn’t get past.

The bottom image shows the scenario if the barrier is quite thin (about a nanometer). Part of the wave does get through and therefore some electrons may appear on the other side of the barrier.

Because of the sharp decay of the probability function through the barrier, the number of electrons that will actually tunnel is very dependent upon the thickness of the barrier. The current through the barrier drops off exponentially with the barrier thickness

Source: nanoscience.com | Images: x | x | x

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#