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- Observing gain-induced group delay between multiphoton pulses generated in a spontaneous down-conversion source
Spontaneous parametric down-conversion (SPDC) and spontaneous four-wave mixing are powerful nonlinear optical processes that can produce multi-photon beams of light with unique quantum properties. These processes could be leveraged to create various quantum technologies, including computer processors and sensors that leverage quantum mechanical effects.
- Experiment verifies a connection between quantum theory and information theory
Researchers from Linköping University together with colleagues from Poland and Chile have confirmed a theory that proposes a connection between the complementarity principle and entropic uncertainty. Their study is published in the journal Science Advances.
- Brilliant Jupiter rides high in Taurus
The observing year comes to a close with a bang as brilliant Jupiter comes to opposition on 7 December. Across the whole of the month the dominant gas giant planet offers its best observing circumstances of the year.
- Venus is a dazzling evening ‘star’
Brilliant and beautiful Venus is an increasingly conspicuous sight soon after sunset.
- 6-year-old finds 50,000-year-old Neanderthal axe on Sussex beach
Three years ago, a six-year-old boy named Ben from Shoreham, West Sussex, England, stumbled upon a shiny flint rock while playing on Shoreham Beach. Initially captivated by its unique appearance, Ben brought the rock home, where it was largely overlooked and often misplaced. Fast-forward to three weeks ago, a now nine-year-old Ben visited the Stone The post 6-year-old finds 50,000-year-old Neanderthal axe on Sussex beach appeared first on Archaeology News Online Magazine.
- Archaeologists uncover 1,600-year-old elite burials in Crimea filled with jewelry of aristocratic women
Archaeological excavations at the Almalyk-Dere necropolis on the Mangup Plateau near Sevastopol, Crimea, have uncovered a stunning collection of gold and silver jewelry belonging to aristocratic women who lived in the region during the fourth to sixth centuries CE. This burial ground is believed to have been reserved for the elite. The recent discoveries, announced The post Archaeologists uncover 1,600-year-old elite burials in Crimea filled with jewelry of aristocratic women appeared first on Archaeology News Online Magazine.
- Researchers use citizen scientist data to explore blue auroras in Japan
Tokyo, Japan (SPX) Dec 06, 2024 On May 11, 2024, a dramatic geomagnetic storm created colorful auroras across Japan's Honshu and Hokkaido islands. Among these was a unique salmon-pink aurora lasting through the night and an exceptionally rare, blue-dominant aurora observed just before midnight. Unlike the typical red auroras seen at low latitudes, these unusual displays captivated citizen scientists and researchers alike.
- Telebras and SES bring internet access to over 1500 sites in Brazil's Northern Region
Paris, France (SPX) Dec 06, 2024 Telebras, in partnership with SES and other collaborators, has enhanced digital connectivity in Brazil's Northern Region by deploying over 1,500 Internet access points. These sites, established through the Government Electronic Service for Citizen Assistance (GESAC) program, include public institutions, schools, libraries, telecenters, health units, indigenous villages, and rural settlements.
- Ancient cosmic collisions may have birthed the universe's most monstrous galaxies
Astronomers have discovered that large flows of cold gas created by collisions between galaxies in the early universe may have forged some of the most monstrous star systems.
- Kennedy Space Center viewing gantry gaining rocket engine test sim in 2025
A countdown is underway at NASA's Florida spaceport, ticking down until the public can experience a rocket engine test. Kennedy Space Center Visitor Complex has announced The Gantry at LC-39.
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