X, the social network formerly known as Twitter, is going to get voice and video call support in the future. That’s according to a post by current owner and former CEO Elon Musk, although the company is yet to formally announce the plans.
Researchers have pioneered a 3D-SPI method that allows high-resolution imaging of microscopic objects, presenting a transformative approach for future biomedical research and optical sensing.
A research team led by Prof. Lei Gong from the University of Science and Technology (USTC) of the Chinese Academy of Sciences (CAS) and collaborators developed a three-dimensional single-pixel imaging (3D-SPI) approach based on 3D light-field illumination(3D-LFI), which enables volumetric imaging of microscopic objects with a near-diffraction-limit 3D optical resolution. They further demonstrated its capability of 3D visualization of label-free optical absorption contrast by imaging single algal cells in vivo.
The study titled “Optical Single-Pixel Volumetric Imaging by Three-dimensional Light-Field Illumination” was published recently in the journal Proceedings of the National Academy of Sciences (PNAS).
Glacial cyclicity of the Earth has often been considered on 100,000 year timescales, particularly for the Late Pleistocene (~11,700 to 129,000 years ago) swapping between periods of extensive polar and mountain glacier ice sheets, to warmer interglacial periods when ice sheets and glaciers retreated, with subsequent sea level rise. This is thought to be related to three key drivers affecting the amount of solar radiation reaching Earth from the sun.
Termed Milankovitch cycles, eccentricity considers the shape of Earth’s orbit changing from circular to more elliptical over 100,000 year timescales, while obliquity refers to the varying ‘tilt’ of the planet’s axis between 22.1 and 24.5 degrees over 41,000 years (contributing to seasons) and precession, which in simple terms is the direction Earth’s axis is pointed and can make the contrast between seasons more extreme in one hemisphere compared to the other.
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New research finds that the memories useful for future generalizations are held in the brain separately from those recording unusual events.
Scientists have designed a fundamentally new way to make light beams collide with each other—by reflecting them both on the same mirror in time. The team also showed off the beam-shaping capabilities of their technique, with possible applications in telecommunications and scientific measurement.
From pv magazine USA
World4Solar, a Nevada-based company, has developed a freestanding solar canopy for residential use.
Known as Dynabeads, a novel optical signature within them confirms a target pathogen’s presence in under a second.
MIT engineers have discovered a new optical signature in a widely employed class of magnetic beads, enabling rapid detection of contaminants in various diagnostic tests.
For instance, their study, accessible on ArXiv (awaiting peer review), highlighted the beads’ newfound capacity to swiftly expose traces of the foodborne pathogen Salmonella.
When what we predict and what we measure don’t add up, that’s a sign there’s something new to learn. Could it be a new fundamental force?
