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41 articles from ScienceDaily

How to make hydrogen straight from seawater -- no desalination required

Researchers have developed a cheaper and more energy-efficient way to make hydrogen directly from seawater, in a critical step towards a truly viable green hydrogen industry. The new method splits the seawater directly into hydrogen and oxygen -- skipping the need for desalination and its associated cost, energy consumption and carbon emissions.

Four classes of planetary systems

Astronomers have long been aware that planetary systems are not necessarily structured like our solar system. Researchers have now shown that there are in fact four types of planetary systems.

Kangaroo fecal microbes could reduce methane from cows

Baby kangaroo feces might help provide an unlikely solution to the environmental problem of cow-produced methane. A microbial culture developed from the kangaroo feces inhibited methane production in a cow stomach simulator. After researchers added the baby kangaroo culture and a known methane inhibitor to the simulated stomach, it produced acetic acid instead of methane. Unlike methane, which...

New technique maps large-scale impacts of fire-induced permafrost thaw in Alaska

Researchers have developed a machine learning-based ensemble approach to quantify fire-induced thaw settlement across the entire Tanana Flats in Alaska, which encompasses more than 3 million acres. They linked airborne repeat lidar data to time-series Landsat products (satellite images) to delineate thaw settlement patterns across six large fires that have occurred since 2000. The six fires...

Pungent ginger compound puts immune cells on heightened alert

Ginger has a reputation for stimulating the immune system. New results now support this thesis. In laboratory tests, small amounts of a pungent ginger constituent put white blood cells on heightened alert. The study also shows that this process involves a type of receptor that plays a role in the perception of painful heat stimuli and the sensation of spiciness in food.

The roar and crackle of Artemis 1

When the Artemis 1 mission was launched in November, it became the world's most powerful rocket, and with liftoff came a loud roar heard miles away. Researchers report noise measurements during the launch at different locations around Kennedy Space Center. The data collected can be used to validate existing noise prediction models, which are needed to protect equipment as well as the surrounding...

The perfect pour: Model predicts beer head features

Researchers have analyzed brewing with numerical simulations to predict an array of beer foam features. They demonstrate that their model can determine foam patterns, heights, stability, beer/foam ratio, and foam volume fractions. The study presents the first use of a computational approach called a multiphase solver to tackle beer heads.

Better understanding on the way to a carbon-neutral economy

What role could rifted margins play in the transition to a carbon-neutral economy? Researchers summarize the current state of knowledge about the so-called rifting of continents. Rifting is the term researchers use to describe the process by which continental plates break and new oceans are formed.

The 'tipping point' toward Alzheimer's

Scientists are not yet clear on how the tau protein changes from a benign protein essential for normal function in our brains into the toxic neurofibrillary tangles that are a signature of Alzheimer's and other neurodegenerative diseases.

New AI tool guides users away from incendiary language

To help identify when tense online debates are inching toward irredeemable meltdown, researchers have developed an artificial intelligence tool that can track these conversations in real-time, detect when tensions are escalating and nudge users away from using incendiary language.