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More information: Xingyue Ma et al, Active learning of effective Hamiltonian for super-large-scale atomic structures, npj Computational Materials (2025). DOI: 10.1038/s41524-025-01563-z Journal ...

Concrete is everywhere, but did we actually forget how to make it last? The Romans built structures that have ... What made Roman concrete so special, and how can we use it today?

and the apparently widely different assumptions which have been introduced in various recent attempts to develop a theory of atomic constitution capable of accounting for other physical and ...

As a result, directly observing the three-dimensional atomic structure of individual nanoparticles over time in liquid environments remains a formidable technical challenge. Unlike nanoparticles ...

Maybe concrete is second behind water because water is needed to make concrete... Username March 21, 2025 09:30 AM The Romans didn't make klinker and their concrete still stands today.

In contrast, 97.5 percent of materials in the material world, including non-layered metals, resemble "compressed biscuits" due to their tightly bonded 3D atomic structures. By melting metals like ...

Croatia In 301 A.D., the Emperor Diocletian made a bold but ultimately unsuccessful bid to address the inflation that was rampaging across the eastern half of the divided Roman Empire. Prices of ...

NPL's atomic clock, alongside clocks from around 80 labs worldwide, helps set Universal Coordinated Time (UTC), the official global time standard To pinpoint our exact location, we need to know ...