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Novel elastic alloy achieves 20x temperature change and 90% Carnot efficiency in solid-state heat pumping

Researchers at the School of Engineering of the Hong Kong University of Science and Technology (HKUST) have developed a novel elastic alloy called Ti78Nb22, which achieves remarkable efficiency for solid-state heat pumping and exhibits a reversible temperature change (ΔT) ability that is 20 times greater than that of conventional metals when stretched or compressed, offering a promising green alternative to traditional vapor-compression heating and cooling technologies.

“We’ve Barely Scratched the Surface”: Scientists Reveal Only 0.001% of the Deep Ocean Has Been Imaged

Only a tiny fraction of the deep ocean is explored, leaving 66% of Earth’s surface largely unseen. Researchers urge global, inclusive efforts to map and protect this vast and vital ecosystem. In a groundbreaking study published in Science Advances, researchers from the Ocean Discovery League reve

A Hidden Pattern in Your Pulse Could Signal Future Cognitive Decline

Slight variations in a person’s pulse rate could give clues about the likelihood of future cognitive decline, according to a new study, potentially giving us a valuable new test for cognitive problems that would be quick and easy to run.

This is something that researchers invest a lot of time in, because knowing when cognitive decline might start, and how it may progress, means better support and more clarity for those involved. Along the way, it also reveals new insights into how these conditions develop, and how they might be stopped for good.

In this study, an international team analyzed pulse rate data across a night of sleep from 503 individuals with an average age of 82. Cognitive tests were also carried out around that same time, as well as in at least one follow-up visit.