We tie our shoes, we put on neckties, we wrestle with power cords. Yet despite deep familiarity with knots, most people cannot tell a weak knot from a strong one by looking at them, new Johns Hopkins University research finds.

University of Michigan physicists have devised an algorithm that provides a mathematical framework for how learning works in lattices called mechanical neural networks.

Consumers' real-world stop-and-go driving of electric vehicles benefits batteries more than the steady use simulated in almost all laboratory tests of new battery designs, Stanford-SLAC study finds.

In fields ranging from immunology and ecology to economics and thermodynamics, multi-scale complex systems are ubiquitous. They are also notoriously difficult to model. Conventional approaches take either a bottom-up or top-down approach. But in disturbed systems, such as a post-fire forest ecosystem or a society in a pandemic, these unidirectional models can’t capture the interactions between the small-scale behaviors and the system-level properties. SFI External Professor John Harte (UC Berkeley) and his collaborators have worked to resolve this challenge by building a hybrid method that links bottom-up behaviors and top-down causation in a single theory. 

Researchers have developed a novel device that couples magnetic fields and kirigami design principles to remotely control the movement of a flexible dimpled surface, allowing it to manipulate objects without actually grasping them – making it useful for lifting and moving items such as fragile objects, gels or liquids. The technology has potential for use in confined spaces, where robotic arms or similar tools aren’t an option.

University of Washington researchers show that the all-time record low in winter sea ice extent in 2023 can be explained by warm Southern Ocean conditions and patterns in the winds that circled Antarctica months earlier, allowing forecasts for sea ice coverage around the South Pole to be generated six or more months in advance. This could support regional and global weather and climate models.

Physicists at the University of Cincinnati in a new paper outlined the next 10 years of global research into the behavior of neutrinos, particles so tiny that they pass through virtually everything by the trillions every second at nearly the speed of light.

The University of Pennsylvania's Aman Husbands, of the School of Arts & Sciences, uncovered surprising ways transcription factors, the genetic switches for genes, regulate plant development. Their findings reveal how subtle changes in a lipid-binding region called the START domain can dramatically alter gene regulation, paving the way for advancements in crop engineering, synthetic biology, and precision gene therapies.