The surprising strength of liquid crystals

Dendrites are the destructive by-products of the cycle of charging and discharging lithium ion batteries. These tiny deposits form between the battery's anode and cathode, building up over time. Inevitably, they diminish battery life. More problematic is their risk of causing the battery to burst into flames. In the quest for safer and longer lasting batteries—especially for electric cars, trucks, and planes—researchers continue to explore methods to suppress the formation of dendrites.

source https://phys.org/news/2020-11-strength-liquid-crystals.html

Twitter board backs chief Jack Dorsey after ouster bid

Twitter's board on Monday said Jack Dorsey will remain chief after a management review prompted by an activist investor's effort to push him out of the job.

source https://techxplore.com/news/2020-11-twitter-board-chief-jack-dorsey.html

Sri Lanka rescues 120 whales after mass stranding

Sri Lanka's navy and volunteers rescued 120 pilot whales stranded in the country's biggest mass beaching, but at least two injured animals were found dead, officials said.

source https://phys.org/news/2020-11-sri-lanka-whales-mass-stranding.html

China's Ant Group facing regulatory pressure ahead of record IPO

Fintech giant Ant Group is facing growing Chinese pressure over potential risks in its online lending business, with co-founder Jack Ma and other executives summoned to an unusual meeting with regulators just ahead of its record-breaking IPO this week.

source https://techxplore.com/news/2020-11-china-ant-group-regulatory-pressure.html

Tunisian startup 3-D prints solar-powered bionic hands

A Tunisian startup is developing a 3-D-printed bionic hand, hoping the affordable and solar-powered prosthetic will help amputees and other disabled people across Africa.

source https://techxplore.com/news/2020-11-tunisian-startup-d-solar-powered-bionic.html

Not forever: world's biggest pink diamond mine closes

The world's largest pink diamond mine has shut its doors after exhausting its reserves of the expensive gems, global mining giant Rio Tinto said Tuesday.

source https://phys.org/news/2020-11-world-biggest-pink-diamond.html

Cat 4 Hurricane Eta threatens flooding in Central America

Hurricane Eta erupted quickly into a potentially catastrophic major hurricane Monday as it headed for Central America, where forecasters warned of massive flooding and landslides across a vulnerable region.

source https://phys.org/news/2020-11-cat-hurricane-eta-threatens-central.html

Walmart abandons shelf-scanning robots, lets humans do work

Walmart is laying off the robots it had deployed in about 500 stores to keep tabs on what's on and not on the shelves.

source https://techxplore.com/news/2020-11-walmart-abandons-shelf-scanning-robots-humans.html

Lizard skull fossil is new and 'perplexing' extinct species

In 2017, while browsing the fossil collections of Yale's Peabody Museum of Natural History, University of Texas at Austin graduate student Simon Scarpetta came across a small lizard skull, just under an inch long.

source https://phys.org/news/2020-11-lizard-skull-fossil-perplexing-extinct.html

Two centuries of Monarch butterflies show evolution of wing length

North America's beloved Monarch butterflies are known for their annual, multi-generation migrations in which individual insects can fly for thousands of miles. But Monarchs have also settled in some locations where their favorite food plants grow year round, so they no longer need to migrate.

source https://phys.org/news/2020-11-centuries-monarch-butterflies-evolution-wing.html

Self-watering soil could transform farming

A new type of soil created by engineers at The University of Texas at Austin can pull water from the air and distribute it to plants, potentially expanding the map of farmable land around the globe to previously inhospitable places and reducing water use in agriculture at a time of growing droughts.

source https://phys.org/news/2020-11-self-watering-soil-farming.html

Biologists shed light on mystery of how microbes evolve and affect hosts

The era of COVID-19 and the need to constantly wash one's hands and sanitize things have brought microbes to new levels of scrutiny, particularly for their impact on an individual's health.

source https://phys.org/news/2020-11-biologists-mystery-microbes-evolve-affect.html

New protein nanobioreactor designed to improve sustainable bioenergy production

Researchers at the University of Liverpool have unlocked new possibilities for the future development of sustainable, clean bioenergy. The study, published in Nature Communications, shows how bacterial protein 'cages' can be reprogrammed as nanoscale bioreactors for hydrogen production.

source https://phys.org/news/2020-11-protein-nanobioreactor-sustainable-bioenergy-production.html

Short-term moisture removal can eliminate downy mildew of spinach

Downy mildew is the biggest threat to spinach production around the world. While the pathogen has a short life cycle (approximately a week), it can produce millions of spores during the spinach growing season. Overhead sprinkler irrigation systems and dew formation on cool nights leads to more moisture, which enables these spores to infect the spinach.

source https://phys.org/news/2020-11-short-term-moisture-downy-mildew-spinach.html

Scientists pinpoint possible reasons for successful cross-species viral spread

Infectious disease emergence is often the result of a pathogen entering a new host species, as highlighted by COVID-19. However, most cross-species transmissions fail to establish in the newly- infected species.

source https://phys.org/news/2020-11-scientists-successful-cross-species-viral.html

Building European cities with wood would sequester and store half of cement industry's current carbon emissions

Buildings create a whopping one-third of global greenhouse gas emissions—that's about 10 times more than air traffic worldwide. In Europe alone, about 190 million square meters of housing space are built each year, mainly in the cities, and the amount is growing quickly at the rate of nearly 1% a year.

source https://phys.org/news/2020-11-european-cities-wood-sequester-cement.html

Next-gen astronomical survey makes its first observations toward a new understanding of the cosmos

The Sloan Digital Sky Survey's fifth generation collected its very first observations of the cosmos at 1:47 a.m. on October 24, 2020. This groundbreaking all-sky survey will bolster our understanding of the formation and evolution of galaxies—including our own Milky Way—and the supermassive black holes that lurk at their centers.

source https://phys.org/news/2020-11-next-gen-astronomical-survey-cosmos.html

Researchers achieve fused silica with high damage threshold by combing chemical etching and laser polishing

Laser damage in fused silica, particularly ultraviolet laser damage, is still a key problem limiting the development of high-power laser systems. The traditional processing method of fused silica goes through the processes of grinding and chemical mechanical polishing (CMP). This method is time-consuming to achieve an ultra-smooth surface, and is easy to cause surface and sub-surface defects, resulting in a significant reduction in the surface damage threshold of the fused silica.

source https://phys.org/news/2020-11-fused-silica-high-threshold-chemical.html

The efficiency of migratory birds' flight formations

Migratory birds flying south provide an impressive example of cooperative behavior that saves power and energy. In the past, it was impossible for scientists to study this phenomenon in a natural environment. Researchers who guided young northern bald ibises to their wintering grounds have now succeeded for the first time in obtaining a comprehensive data set. A better understanding of this behavior is also of fundamental importance in respect of climate change.

source https://phys.org/news/2020-11-efficiency-migratory-birds-flight-formations.html

Team develops cost-efficient and high-resolution multi-spectral camera

A team of researchers at the Chair of Multimedia Communications and Signal Processing at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) has developed an intelligent camera that achieves not only high spatial and temporal but also spectral resolution. The camera has a wide range of applications that can improve environmental protection and resource conservation measures as well as autonomous driving or modern agriculture. The findings of the research have been publishedas an open access publication.

source https://phys.org/news/2020-11-team-cost-efficient-high-resolution-multi-spectral-camera.html

Researchers discover mechanism that allows non-coding RNA to amplify protein production

Scientists from an international group led by the RIKEN Center for Integrative Medical Sciences and Yokohama City University have discovered that a pair of proteins play a key role in allowing an important type of functional non-coding RNA, known as SINEUPs, to act to promote their target messenger RNA. SINEUPs are a recently discovered type of RNA that work specifically to amplify the production of proteins by messenger RNAs, and hence could be important for developing therapeutics for diseases where a certain protein is insufficiently synthesized.

source https://phys.org/news/2020-11-mechanism-non-coding-rna-amplify-protein.html

Analysis of a Martian meteorite reveals evidence of water 4.4 billion years ago

A meteorite that originated on Mars billions of years ago reveals details of ancient impact events on the red planet. Certain minerals from the Martian crust in the meteorite are oxidized, suggesting the presence of water during the impact that created the meteorite. The finding helps to fill some gaps in knowledge about the role of water in planet formation.

source https://phys.org/news/2020-11-analysis-martian-meteorite-reveals-evidence.html

Starting kindergarten on the right foot

Everything you ever really needed to know you learned back in kindergarten—that old saying gets some scientific support in a new study by researchers at Canada's Université de Montréal and Université Sainte-Anne.

source https://phys.org/news/2020-11-kindergarten-foot.html

More Republicans follow COVID guidelines when they're told it will protect themselves

For decades, scientists have predicted that a deadly pandemic would sweep the globe—but what they didn't expect was that basic public health measures such as mask wearing and social distancing would become political flashpoints, especially in the United States.

source https://phys.org/news/2020-11-republicans-covid-guidelines-theyre-told.html

Ransomware surge imperils hospitals as pandemic intensifies

Hackers are stepping up attacks on health care systems with ransomware in the United States and other countries, creating new risks for medical care as the global coronavirus pandemic accelerates.

source https://techxplore.com/news/2020-11-ransomware-surge-imperils-hospitals-pandemic.html

Super typhoon batters Philippines; 1 million in shelters

A super typhoon slammed into the eastern Philippines with ferocious winds early Sunday, knocking down power in several towns and prompting the evacuation of about a million people in its likely path, including in the capital, Manila, where the main airport was shut down.

source https://phys.org/news/2020-11-super-typhoon-batters-philippines-million.html

Millions online, 6,000 live see Koreans win top eSports title

More than 6,000 mostly young spectators watched at a Shanghai stadium and millions tuned in online to see Damwon Gaming win the League of Legends world championship on Saturday.

source https://techxplore.com/news/2020-11-millions-online-koreans-esports-title.html

Real-world politics invade video games ahead of US election

Fans of US President Donald Trump can insert his character in some video games, even protect him from assassination in notoriously lawless Grand Theft Auto.

source https://techxplore.com/news/2020-11-real-world-politics-invade-video-games.html

Space station marking 20 years of people living in orbit

The International Space Station was a cramped, humid, puny three rooms when the first crew moved in. Twenty years and 241 visitors later, the complex has a lookout tower, three toilets, six sleeping compartments and 12 rooms, depending on how you count.

source https://phys.org/news/2020-11-space-station-years-people-orbit.html

KLM 3.4bn bailout in crisis as unions refuse paycut plan

The Dutch government on Saturday suspended plans to help beleaguered national carrier KLM with a multi-billion-euro bailout package after unions declined to sign a deal involving a five-year pay-cut plan.

source https://techxplore.com/news/2020-11-klm-34bn-bailout-crisis-unions.html