[SOON , A TITLE HERE ] - Page 68
A pair of unusual positrons
This picture, taken in the Fermilab 15-foot bubble chamber filled with a mixture of neon and hydrogen (Why Ne and H? Click here), and exposed to a high energy neutrino beam, is part of an electromagnetic shower produced in a neutrino interaction. In this picture, the neutrino beam, which produces no bubbles, comes in from the left.
The lone Compton electron near the middle of the picture shows that negative particles turn to the right.
The first highlighted track, which passes close to this Compton electron, is a positron from an e−e+ pair. It comes to a sudden end near the fiducial mark. At this point the positron has annihilated in flight with an electron, producing a pair of photons, gamma γ. One of these 'materialises’ in the field of a nucleus, producing an e−e+ pair, about 11 cm (in the actual bubble chamber) from the annihilation point.
The second highlighted positron also comes from an e−e+ pair, but this one does not annihilate. Instead, the track - mysteriously, mid-flight - starts curving in the opposite direction, as if it had suddenly become negatively charged. What has happened is that the e+ has run head-on into an electron e−, transferring all its momentum to that electron e−. This can only happen if the mass of the positron e+ is equal to that of the electron e−. (The positron e+ that stops would eventually have annihilated, but there is no evidence of the resulting photons γ in this picture.)
This is a good picture to show that quantum phenomena are statistical in nature.
If you wondered what the pairs of parallel lines are, click here.
Edited by the shah - 12/20/12 at 10:50am
Amaringo was born the seventh of thirteen children in 1943[????] in Puerto Libertad, a small settlement on the banks of a tributary of the Ucayali River. When Amaringo was a boy, his family were reduced to extreme poverty after some years of relative prosperity. As a result, they moved to Pucallpa where Amaringo attended school for just two years before he was forced to find work to help support the family. When he was 17 Amaringo became extremely ill, nearly dying from severe heart problems. For over two years he could not work. He believes he was eventually cured due to a local healer.
It was while recovering from this illness that he started to draw and paint for the first time. Amaringo began making drawings with pencil and shading with soot from lamps. From a friend employed in a car factory he got permatex, a blue substance with which he coloured the drawings. He had no money for paper so he used cardboard boxes. Sometimes he took a little lipstick and other cosmetics from his sisters. Later he used ink, watercolours and then a friend gave him six tubes of oil paint.
When Luna and McKenna met Amaringo in 1985 he was living in poverty, barely surviving by teaching English to young people from his home and selling the odd painting to passing tourists. Luna suggested he paint some of his visions, a project which became the basis of a co-authored book, Ayahuasca Visions: The Religious Iconography of a Peruvian Shaman (North Atlantic Books 1999).
Amaringo occasionally gave interviews in the years following the book's publication, and later penned the preface for Plant Spirit Shamanism: Traditional Techniques for Healing the Soul (Destiny Books 2006). He also appeared in The Shaman & Ayahuasca: Journeys to Sacred Realms (2010), Michael Wiese's documentary film about ayahuasca.
After a protracted illness, Amaringo died on 16 November 2009.
and continue to post with appreciation for its present state.
Edited by zissou - 12/21/12 at 10:46am
The stained glass windows were installed in 1994, after eight years of research. Wishing to place this work within the logic of his artistic development without thereby making the windows a mere extension of his painting, he decided not to make any preparatory drawings before having determined his material or rather having been determined by it. This material was a colourless glass whose translucency could be modulated. This glass did not yet exist, but he had it made for the occasion.
Intended for the abbey’s 104 openings, Soulages’ windows are made up of large bands of untinted glass. These bands have gradations of variable opacity present in their very thickness. Thanks to the material, translucent and not transparent, the openings give the appearance of surfaces which are their own source of light.
Going to rewatch Jesse James
I also didn't like Django Unchained as much as Tarantino's other movies, I guess I was expecting more ridiculous spaghetti western but I got more rap music video. There was also no real awesome dialogue scene aside from the mediocre dinner scene. I was expecting intro to Inglorious Basterds or the pub scene, but it never came. DiCaprio and Waltz were amazing, still feel iffy about Fox. WHAT'S HAPPENING TO ME