Dear esteem reader,
Here is your SHAB TECHNOLOGY PLANET customized technology news for December 17, 2020.
Spotlight Stories Headlines
🗞 TECHNOLOGY NEWS💻🔧🖥:
AN OPEN-SOURCE AND LOW-COST ROBOTIC ARM FOR ONLINE EDUCATION
Researchers at Tecnologico de Monterrey in Mexico have recently created a low-cost robotic arm that could enhance online robotics education, allowing teachers to remotely demonstrate theoretical concepts explained during their lessons. This robotic arm, presented in a paper published in Hardware X, is fully open source and can be easily assembled by all teachers and educators worldwide.
HOW COMPUTER SIMULATION WILL ACCELERATE DEVELOPMENT OF HUMAN-INTERACTIVE ‘SMART ROBOTS’
Jeffrey C. Trinkle has always had a keen interest in robot hands. And, though it may be a long way off, Trinkle, who has studied robotics for more than thirty years, says he’s most compelled by the prospect of robots performing “dexterous manipulation” at the level of a human “or beyond.”
AI CAN PREDICT TWITTER USERS LIKELY TO SPREAD DISINFORMATION BEFORE THEY DO IT
A new artificial intelligence-based algorithm that can accurately predict which Twitter users will spread disinformation before they actually do it has been developed by researchers from the University of Sheffield.
🗞 PHYSICS NEWS⚙♨:
ARE PRIMORDIAL MAGNETIC FIELD THEORIES GETTING IN A TWIST?
In cosmic voids where the density of galaxies is far lower than standard, astronomers have observed weak magnetic fields that may provide a window into the early universe. The fields 10-17-10-10 G in magnitude with large coherence lengths of up to megaparsecs are thought to have their origins in the early universe, but so far it is unclear when or how they were generated. One hypothesis is that an imbalance in the numbers of “left-handed” and “right-handed” fermions may be at the heart of it, as this could give rise to helical magnetic fields. But so far there has been no detailed analysis as to how the evolution of the numbers of left- and right-handed fermions might stack up against this hypothesis. Now a collaboration of researchers in Europe report a more rigorous analysis of this chirality imbalance with surprising results.
PHYSICISTS CREATE TIME-REVERSED OPTICAL WAVES
Optics researchers from The University of Queensland and Nokia Bell Labs in the US have developed a new technique to demonstrate the time reversal of optical waves, which could transform the fields of advanced biomedical imaging and telecommunications.
‘MAGIC’ ANGLE GRAPHENE AND THE CREATION OF UNEXPECTED TOPOLOGICAL QUANTUM STATES
Electrons inhabit a strange and topsy-turvy world. These infinitesimally small particles have never ceased to amaze and mystify despite the more than a century that scientists have studied them. Now, in an even more amazing twist, physicists have discovered that, under certain conditions, interacting electrons can create what are called ‘topological quantum states.’ This finding, which was recently published in the journal Nature, has implications for many technological fields of study, especially information technology.
🗞 EARTH NEWS🌏:
SILICA THE BEST ENVIRONMENTAL ALTERNATIVE TO PLASTIC MICROBEADS, STUDY FINDS
Following bans on plastic microbeads in wash-off cosmetics, a new study weighs up the environmental costs of alternatives.
MAPPING CORALS FROM THE SKY GUIDES REEF CONSERVATION
Coral reefs are one of the most biodiverse ecosystems on the planet supporting an estimated 25 percent of all marine species. These biologically rich ecosystems are threatened by multiple stressors, from warming ocean temperatures brought on by climate change to increases in water pollution from coastal development. According to current estimates, 75 percent of the world’s coral reefs could face critical threat levels by 2050. Scientists widely agree that immediate and well-targeted action must be taken to preserve coral reefs for future generations. However, without a clear understanding of where live corals are found, management and conservation efforts will remain hampered at best and ineffective at worst.
CRITICAL TEMPERATURE FOR TROPICAL TREE LIFESPAN REVEALED
For the first time scientists have provided clear evidence that tropical tree lifespan decreases above a critical temperature threshold.
🗞 ASTRONOMY & SPACE NEWS🌪🎇:
STUDY EXPLORES A UNIQUE FILAMENT OF THE CYGNUS X COMPLEX
Using the Shanghai 65-m TianMa Radio Telescope (TMRT), Chinese astronomers have investigated a gas filaments of the Cygnus X molecular cloud complex known as DR21SF. Results of the new study, presented in a paper published December 4, shed more light on the properties of this unique structure.
‘LOST CONNECTION’ HAMPERS VIRGIN GALACTIC’S TEST FLIGHT (UPDATE)
A Virgin Galactic test flight Saturday ended prematurely as the spacecraft’s rocket motor failed to ignite and it then glided down safely to its landing site in southern New Mexico.
CHINESE CAPSULE WITH MOON ROCKS BEGINS RETURN TO EARTH
A Chinese space capsule bringing back the first moon rocks in more than four decades started its three-day return to Earth on Sunday.
🗞 NANOTECHNOLOGY NEWS⛄☃:
SHEETS OF CARBON NANOTUBES COME IN A RAINBOW OF COLORS
Nanomaterials researchers in Finland, the United States and China have created a color atlas for 466 unique varieties of single-walled carbon nanotubes.
WHEN LESS IS MORE: A SINGLE LAYER OF ATOMS BOOSTS THE NONLINEAR GENERATION OF LIGHT
In a new study an international research team led by the University of Vienna has shown that structures built around a single layer of graphene allow for strong optical nonlinearities that can convert light. The team achieved this by using nanometer-sized gold ribbons to squeeze light, in the form of plasmons, into atomically-thin graphene. The results, which are published in Nature Nanotechnology are promising for a new family of ultra-small tunable nonlinear devices.
TOWARD IMPERCEPTIBLE ELECTRONICS THAT YOU CANNOT SEE OR FEEL
Transparent electronics—such as head-up displays that allow pilots to read flight data while keeping their eyes ahead of them—improve safety and allow users to access data while in transit. For healthcare applications, the electronics need to not only be cheap and straightforward to fabricate, but also sufficiently flexible to conform to skin. Silver nanowire networks meet these criteria. However, current methods of development create random nanowire alignment that’s insufficient for advanced applications.
Source:Technology News Channels
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