Astrophysicist proposes a new theory of gravity without a conservation law
The general theory of relativity is based on the concept of curved space–time. To describe how the energy and momentum of fields are distributed in space–time, as well as how they interact with the gravitational field, a special mathematical cons.....»»
Enhancing land surface models to visualize vegetation gradients in hilly terrain
Land surface models are an indispensable tool for environmental scientists to map the natural features of our world, particularly when they monitor the effects of climate change or assess conservation efforts......»»
Utilizing scanning SQUID microscopy to investigate local magnetic response of Bi2212
Phase transitions in different states of matter, such as the condensation of gases into liquids or the transition from a normal metal to a superconducting state, can be described using Ginzburg-Landau symmetry-breaking theory. However, such a theory.....»»
New research employs shutter speed analogies to validate 55-year-old theory about chemical reaction rates
Chemical reactions are commonly depicted as transitions from reactants to products. However, such reactions involve many molecules, and the individual molecules themselves undergo frequently-occurring structural changes as they transform from the rea.....»»
Researchers propose deep blue OLED design exhibiting BT.2020 color gamut
A research team proposes a novel design in deep blue organic light-emitting diode (OLED) which realizes a series of highly efficient luminescent compounds closely aligned with the BT.2020 blue light standard. The study was published in Advanced Mater.....»»
Researchers uncover what makes some chickens more water-efficient than others
In the first scientific report of its kind, researchers in Arkansas have shown that chickens bred for water conservation continued to put on weight despite heat stress that would normally slow growth......»»
New work extends the thermodynamic theory of computation
Every computing system, biological or synthetic, from cells to brains to laptops, has a cost. This isn't the price, which is easy to discern, but an energy cost connected to the work required to run a program and the heat dissipated in the process......»»
Is dark matter’s main rival theory dead?
There’s bad news from the Cassini spacecraft and other recent tests. Enlarge / Galaxy rotation has long perplexed scientists. (credit: NASA/James Webb Telescope) One of the biggest mysteries in astrophysics today is.....»»
NASA wants a cheaper Mars Sample Return—Boeing proposes most expensive rocket
"To reduce mission complexity, this new concept is doing one launch." Enlarge / The Space Launch System rocket lifts off on the Artemis I mission. (credit: NASA/Bill Ingalls) NASA is looking for ways to get rock samples.....»»
We need to consider conservation efforts on Mars, say researchers
Astrobiology is the field of science that studies the origins, evolution, distribution, and future of life in the universe. In practice, this means sending robotic missions beyond Earth to analyze the atmospheres, surfaces, and chemistry of extraterr.....»»
Astronomers propose a new stellar theory to explain the origin of phosphorus
Astronomers have proposed a new theory to explain the origin of phosphorus, one of the elements important for life on Earth. The theory suggests a type of stellar explosion known as "ONe novae" as a major source of phosphorus......»»
Einstein and anime: Hong Kong university tests AI professors
Using virtual reality headsets, students at a Hong Kong university travel to a pavilion above the clouds to watch an AI-generated Albert Einstein explain game theory......»»
TESS discovers a rocky planet that glows with molten lava as it"s squeezed by its neighbors
UC Riverside astrophysicist Stephen Kane had to double-check his calculations. He wasn't sure the planet he was studying could be as extreme as it seemed......»»
Report: Governments are falling short on promises of effective biodiversity protection
A new analysis of the world's largest 100 marine protected areas (MPAs) published in Conservation Letters suggests that governments are falling short on delivering the promise of effective biodiversity protection due to slow implementation of managem.....»»
Japan Fisheries Agency proposes allowing commercial catching of fin whales
Japan's Fisheries Agency on Thursday proposed a plan to allow catching fin whales in addition to three smaller whale species currently permitted under the country's commercial whaling around its coasts......»»
"Lost" spy satellite orbited Earth undetected for 25 years—until now, scientists say
An experimental spy satellite that was deemed "lost" after eluding detection for decades has finally been found. "The S73-7 satellite has been rediscovered after being untracked for 25 years," astrophysicist Jonathan McDowell said in an April 29 post.....»»
How to tell if a conspiracy theory is probably false
Conspiracy theories are everywhere, and they can involve just about anything......»»
A "conservation conundrum"—when rat control to conserve one species threatens another
When pest rats and mice decimate populations of native species, pest control is a no-brainer. But what if baiting rats protects threatened songbirds, while poisoning critically endangered owls?.....»»
Study reveals flaw in long-accepted approximation used in water simulations
Computational scientists at the Department of Energy's Oak Ridge National Laboratory have published a study in the Journal of Chemical Theory and Computation that questions a long-accepted factor in simulating the molecular dynamics of water: the 2-f.....»»
The quantum theory of gravitation, effective field theories and strings: Past and present
Gravity is one of four fundamental interactions. The most precise description of this force is still provided by Einstein's General Theory of Relativity, published in 1915, an entirely classical theory. This description sets gravity apart from the ot.....»»
New research confirms that Beethoven had lead poisoning—but it didn"t kill him
To this day, no one knows for certain what caused the liver and kidney disease that led to Ludwig van Beethoven's untimely death. However, a new letter to the editor in the journal Clinical Chemistry rules out one popular theory, showing that the com.....»»