Facebook Reaches 100% Renewable-Energy Milestone
Facebook has reached a key environmental goal early: The social media company now purchases enough renewable energy to run all of its operations around the world, it announced this week. CBS News reports: Facebook joins a handful of tech companies th.....»»
Scientists create model of holographic dark energy that is no longer unstable
In 1998, scientists discovered that our universe expands with acceleration, and in order to explain this effect, the concept of dark matter was introduced. This is a special type of energy that fills up all of existing space-time but is impossible to.....»»
Team debunks research showing Facebook"s news-feed algorithm curbs election misinformation
An interdisciplinary team of researchers led by the University of Massachusetts Amherst have published work in the journal Science calling into question the conclusions of a widely reported study—published in Science in 2023—finding the social pl.....»»
Bird study shows that grounded running styles conserve energy
A small team of biologists and animal movement specialists in the Netherlands and the U.K. has found that birds such as the emu have a grounded running style at medium speeds, allowing them to conserve energy compared to the ungrounded running style.....»»
Semimetal-induced covalency achieves high-efficiency electrocatalysis for platinum intermetallic compounds
Compared with other types of batteries, proton exchange membrane fuel cells have the advantages of high discharge power and no pollution, which is also an important carrier for hydrogen energy conversion and utilization. Platinum intermetallic compou.....»»
OpenAI asked US to approve energy-guzzling 5GW data centers, report says
OpenAI stokes China fears to woo US approvals for huge data centers, report says. Enlarge (credit: Anadolu / Contributor | Anadolu) OpenAI hopes to convince the White House to approve a sprawling plan that would place 5-.....»»
How a nearby supernova left its mark on Earth life
When a massive star explodes as a supernova, it does more than release an extraordinary amount of energy. Supernovae explosions are responsible for creating some of the heavy elements, including iron, which is blasted out into space by the explosion......»»
Ice cores show pollution"s impact on Arctic atmosphere
A Dartmouth-led study on ice cores from Alaska and Greenland found that air pollution from the burning of fossil fuels reaches the remote Arctic in amounts large enough to alter its fundamental atmospheric chemistry. The findings illustrate the long.....»»
Manganese cathodes could boost lithium-ion batteries
Rechargeable lithium-ion batteries are growing in adoption, used in devices like smartphones and laptops, electric vehicles, and energy storage systems. But supplies of nickel and cobalt commonly used in the cathodes of these batteries are limited......»»
Ultra-high speed camera for molecules: Attosecond spectroscopy captures electron transfer dynamics
In nature, photosynthesis powers plants and bacteria; within solar panels, photovoltaics transform light into electric energy. These processes are driven by electronic motion and imply charge transfer at the molecular level. The redistribution of ele.....»»
Cricket study suggests mating filter narrows when males are trying to save energy
A trio of biologists at the University of Minnesota has found that when male crickets need to save energy, they narrow their mating filter, to focus more exclusively on females......»»
Thermal effects in spintronics systematically assessed for first time
Spintronics—devices that use microscopic magnetism in conjunction with electric current—could lead to computing technology as fast as conventional electronics but much more energy efficient. As such devices are developed and studied, an important.....»»
New insights into hot carrier solar cells: Study explores hot electron tunneling and collection to enhance efficiency
Hot carrier solar cells, a concept introduced several decades ago, have long been seen as a potential breakthrough in solar energy technology. These cells could surpass the Shockley–Queisser efficiency limit, which is a theoretical maximum efficien.....»»
Ant queens cannibalize their sick offspring and "recycle" them, new study reveals
Instead of nurturing their sick young, ant queens eat their infected offspring at the first sign of illness then "recycle" them into energy to produce new eggs, a new study led by the University of Oxford has shown. The findings have been published i.....»»
Low-temperature ammonia-to-hydrogen conversion achieved by applying an electric field
Hydrogen gas, owing to its high energy density and carbon-free nature, is gaining much attention as the energy source for a green and sustainable future. Despite being the most abundant element in the universe, hydrogen is mostly found in a bound sta.....»»
Discovering new energy levels in atomic hyperfine structures
Since the late 1960s, the Laboratoire Aimé Cotton (LAC) in Orsay, France, has made significant progress in the classification of complex atomic spectra. These advances have been driven both by the development of Fourier transform spectroscopy, and t.....»»
Polestar 3 delivers sports car handling in grocery-getter package
The Polestar 3 debuts the latest generation of the Borg Warner-developed torque vectoring dual-clutch system that improves handling and boosts energy efficiency......»»
Study raises questions about validity of standard model of solar flares
Solar flares are extremely intense events that occur in the sun's atmosphere, lasting anywhere from a few minutes to several hours. According to the standard flare model, the energy that triggers these explosions is transported by accelerated electro.....»»
Polestar 3 delivers sports-car handling in grocery-getter package
The Polestar 3 debuts the latest generation of the Borg Warner-developed torque vectoring dual-clutch system that improves handling and boosts energy efficiency......»»
Cruise resumes manual driving in California, with eye toward new milestone this fall
Mapping efforts mark the first California operations for GM's self-driving subsidiary since one of the company's cars ran over a pedestrian in October 2023......»»
From pollution to power: Merging wastewater treatment and energy generation with capacitive MFC innovations
Imagine standing on the edge of a new frontier, where waste—something we often view as a problem—becomes the solution. We live in a world that needs innovation, where environmental challenges demand a sustainable approach, and where we need techn.....»»