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”
Prehistoric defensive settlements were more common than expected
Prehistoric defensive settlements in today’s Poland were more common than archaeologists believed. Until recently, approx. 20 of them were known from the Neolithic and early Bronze Age. The latest research conducted in Małopolska showed that there were nearly twice as many. Continue reading “Prehistoric defensive settlements were more common than expected”
Egyptian archaeologists discover 5000-year-old burials
An archaeological mission working in Kom el Khelgan (an area on the border between the Delta cities of Sharqiya and Daqahliya) has discovered a number of tombs that date back to the Second Intermediate Period (Hyksos era) and 20 burials from Predynastic Egypt, namely the Naqada III period. Continue reading “Egyptian archaeologists discover 5000-year-old burials”
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”
A Mycenean link to Bronze Age Britain
Around 4,000 years ago the Bronze Age came to Britain. This was the crucial period that linked the Stone Age with the Iron Age, and during which it seems new people came in from continental Europe. What did the newcomers bring to these islands? Continue reading “A Mycenean link to Bronze Age Britain”