Direct-write quantum calligraphy in monolayer semiconductors

Scientists at the U.S. Naval Research Laboratory (NRL) and the Air Force Research Laboratory (AFRL) have developed a way to directly write quantum light sources, which emit a single photon of light at a time, into monolayer semiconductors such as tungsten diselenide (WSe2). Single photon emitters (SPEs), or quantum emitters, are key components in a wide range of nascent quantum-based technologies, including computing, secure communications, sensing and metrology. Continue reading “Direct-write quantum calligraphy in monolayer semiconductors”

Dog burial as common ritual in Neolithic populations of north-eastern Iberian Peninsula

‘Coinciding with the Pit Grave culture (4200-3600 years before our era), coming from Southern Europe, the Neolithic communities of the north-eastern Iberian Peninsula started a ceremonial activity related to the sacrifice and burial of dogs. The high amount of cases that are recorded in Catalonia suggests it was a general practice and it proves the tight relationship between humans and these animals, which, apart from being buried next to them, were fed a similar diet to humans’. Continue reading “Dog burial as common ritual in Neolithic populations of north-eastern Iberian Peninsula”

Justice Does Not Belong to the Christian Way of Life

by Father Alexis

I am most grateful for the comments generated by my previous post. I have been musing about why not judging others seems to be a stumbling block. Perhaps, it is because we consider the spiritual life in the absolutist, rational categories of right and wrong or guilt and innocence, rather than in terms of healthy, living communion with God and diseased, deadening alienation from Him or radiant, grace-attracting humility and darkened, grace-repelling pride. Continue reading “Justice Does Not Belong to the Christian Way of Life”

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