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219,885 articles from PhysOrg
3D motion tracking system could streamline vision for autonomous tech
A new real-time, 3D motion tracking system developed at the University of Michigan combines transparent light detectors with advanced neural network methods to create a system that could one day replace LiDAR and cameras in autonomous technologies.
Climate-friendly microbes chomp dead plants without releasing heat-trapping methane
The tree of life just got a little bigger: A team of scientists from the U.S. and China has identified an entirely new group of microbes quietly living in hot springs, geothermal systems and hydrothermal sediments around the world. The microbes appear to be playing an important role in the global carbon cycle by helping break down decaying plants without producing the greenhouse gas methane.
With new optical device, engineers can fine tune the color of light
Among the first lessons any grade school science student learns is that white light is not white at all, but rather a composite of many photons, those little droplets of energy that make up light, from every color of the rainbow—red, orange, yellow, green, blue, indigo, violet.
Fossils of 'giant cloud rats' discovered in Philippine caves
Rats, by and large, aren't terribly popular animals. But while you don't want an infestation of common black rats living in your house, their distant cousins in the Philippines are downright cuddly. These "giant cloud rats" live in the treetops of misty mountain forests, and they fill an ecological role occupied by squirrels in the US. And, it turns out, we have new evidence that they've been...
Brought in by humans, beavers threaten Patagonia forest
The Karukinka natural park on Chile's side of the Tierra del Fuego archipelago guards a treasure trove of ancient beech trees saved from the chainsaws of loggers.
The global economic response to climate change: what's the plan?
World leaders participating in the virtual Earth Day summit are unanimous: fighting climate change will be good for economic growth worldwide.
Wild horses flourish in Chernobyl 35 years after explosion
Down an overgrown country road, three startled wild horses with rugged coats and rigid manes dart into the flourishing overgrowth of their unlikely nature reserve: the Chernobyl exclusion zone.
Astronauts arrive at pad for SpaceX flight on used rocket
Four astronauts arrived at their launch pad early Friday morning for a SpaceX flight to the International Space Station, the company's third bon voyage for a NASA crew in under a year.
SpaceX set for pre-dawn launch to ISS
SpaceX is set to launch its third crew to the International Space Station an hour before sunrise Friday, recycling a rocket and spacecraft for the first time.
Research paves way for improved lasers, communications
New photonics research paves the way for improved lasers, high-speed computing and optical communications for the Army.
Using spatial distance strategically with luxury and popular product displays
Researchers from Nanjing University, National Sun Yat-sen University, and Northwestern University published a new paper in the Journal of Marketing that shows that the spatial distance between products and consumers can affect perceived value and willingness to pay.
Law professor argues for removing police from traffic enforcement
University of Arkansas law professor Jordan Blair Woods challenges the conventional wisdom that only police can enforce traffic laws.
Chemists show ions' staged release from gold-silver nanoparticles could be useful property
There's gold in them thar nanoparticles, and there used to be a lot of silver, too. But much of the silver has leached away, and researchers want to know how.
Finding new life for wine-grape residue
California produces nearly 4 million tons of world-class wine each year, but with that comes thousands of tons of residue like grape skins, seeds, stems and pulp. What if scientists could harness that viticultural waste to help promote human health?
Teaching pupils to 'think like Da Vinci' will help them to take on climate change
A radically reformed approach to education, in which different subjects teach connected themes, like climate change or food security, is being proposed by researchers, who argue that it would better prepare children for future crises.
Radar satellites can better protect against bushfires and floods
New research led by Curtin University has revealed how radar satellites can improve the ability to detect, monitor, prepare for and withstand natural disasters in Australia including bushfires, floods and earthquakes.
Naturally GM: Crops steal genes from other species to accelerate evolution
Grass crops are able to bend the rules of evolution by borrowing genes from their neighbors, giving them a competitive advantage, a new study has revealed.
Study uncovers human-to-cat transmission of the virus that causes COVID-19
New research provides evidence that people have transmitted SARS-CoV-2, the virus that causes COVID-19, to cats during the pandemic in the UK. The study, which is published in Veterinary Record, detected the virus last year in cats that developed mild or severe respiratory disease.
New species of dumbo octopus identified using minimally invasive techniques
A new species of deep-sea dwelling dumbo octopus called Grimpoteuthis imperator sp. nov. has been described using a combination of MRI, micro-CT and minimally invasive gene analysis rather than traditional dissection methods. The findings are presented in the open access journal BMC Biology.
THURSDAY 22. APRIL 2021
How a space doctor keeps astronauts healthy on the ISS
From muscle loss to radiation exposure and the psychological effects of confinement, spaceflight takes a toll on those lucky enough to experience it.
Study paves the way for new photosensitive materials
Photocatalysts are useful materials, with a myriad of environmental and energy applications, including air purification, water treatment, self-cleaning surfaces, pollution-fighting paints and coatings, hydrogen production and CO2 conversion to sustainable fuels.
Major Everglades restoration project to break ground this year
A key project in the restoration of the Everglades moved forward Thursday with the signing of an agreement between Florida and the federal government to construct a huge reservoir south of Lake Okeechobee.
Ancient Indigenous forest gardens promote a healthy ecosystem, says study
A new study by Simon Fraser University historical ecologists finds that Indigenous-managed forests—cared for as "forest gardens"—contain more biologically and functionally diverse species than surrounding conifer-dominated forests and create important habitat for animals and pollinators. The findings are published today in Ecology and Society.
Machine learning model generates realistic seismic waveforms
A new machine-learning model that generates realistic seismic waveforms will reduce manual labor and improve earthquake detection, according to a study published recently in JGR Solid Earth.
Scientists uncover structure of light-driven enzyme with potential biofuel applications
Although many organisms capture and respond to sunlight, enzymes—proteins that catalyze biochemical reactions—are rarely driven by light. Scientists have identified only three types of natural photoenzymes so far. The newest one, discovered in 2017, is fatty acid photodecarboxylase (FAP). Derived from microscopic algae, it uses blue light to catalyze the conversion of fatty acids, found in...
The US is the biggest carbon emitter in history. Where do other nations stand?
It's not just the United States—other major polluters around the world have also been falling behind the climate goals they set for themselves under the Paris agreement.
Climate change, racism and social justice concerns affecting Gen Z's physical and mental health
As Earth Day is celebrated, Generation Z is grappling with the health of the planet and racism and social justice, according to a new survey.
SpaceX aims for 3rd crew launch hour before Friday's sunrise
SpaceX aimed to launch its third crew a little before sunrise Friday, this time using a recycled capsule and rocket.
Expedition hauls tons of plastic out of remote Hawaii atolls
A crew returned from the northernmost islands in the Hawaiian archipelago this week with a boatload of marine plastic and abandoned fishing nets that threaten to entangle endangered Hawaiian monk seals and other animals on the uninhabited beaches stretching more than 1,300 miles north of Honolulu.
Mars has right ingredients for present-day microbial life beneath its surface, study finds
As NASA's Perseverance rover begins its search for ancient life on the surface of Mars, a new study suggests that the Martian subsurface might be a good place to look for possible present-day life on the Red Planet.
Toxic masculinity: Y chromosome contributes to a shorter lifespan in male flies
Males may have shorter lifespans than females due to repetitive sections of the Y chromosome that create toxic effects as males get older. These new findings appear in a study by Doris Bachtrog of the University of California, Berkeley published April 22 in PLOS Genetics.
What does a 1.5-degree warming limit mean for China?
As part of the Paris Agreement, nearly all countries agreed to take steps to limit the average increase in global surface temperature to less than 2 degrees C, or preferably 1.5 degrees C, compared with preindustrial levels. Since the Agreement was adopted, however, concerns about global warming suggest that countries should aim for the "preferable" warming limit of 1.5 degrees C.
3D printed models provide clearer understanding of ground motion
It seems like a smooth slab of stainless steel, but look a little closer, and you'll see a simplified cross-section of the Los Angeles sedimentary basin.
EXPLAINER: How come nations' climate targets don't compare?
This week's climate change summit features lots of talk from different nations about their goals for reducing carbon emissions. But in the weird world of national climate pledges, numbers often aren't quite what they seem.
Biden doubles US emissions cut target as summit lifts climate hopes
President Joe Biden on Thursday doubled US ambitions on slashing greenhouse gas emissions, leading Japan and Canada at a summit in making new commitments that bring the world closer to limiting the worst climate change.