Seawater as an electrical cable !? Wireless power transfers in the ocean

IMAGE: Underwater drone (top left), power supply station (bottom left), drone parked on the power supply station installed on the ocean floor for battery charging (right) view more  Credit: COPYRIGHT (C) TOYOHASHI UNIVERSITY OF TECHNOLOGY. ALL RIGHTS RESERVED. Overview: Associate professor Masaya Tamura, Kousuke Murai (who has completed the first term of his master’s program), and […]

Magnets dim natural glow of human cells, may shed light on how animals migrate

Researchers in Japan have made the first observations of biological magnetoreception – live, unaltered cells responding to a magnetic field in real time. This discovery is a crucial step in understanding how animals from birds to butterflies navigate using Earth’s magnetic field and addressing the question of whether weak electromagnetic fields in our environment might […]

A high order for a low dimension

IMAGE: Subtle changes in the arrangement of component materials can have a stronger knock-on effect to the bulk material than was previously thought. view more  Credit: © 2020 Kondo et al Spintronics refers to a suite of physical systems which may one day replace many electronic systems. To realize this generational leap, material components that confine […]

Order and disorder in crystalline ice explained

A fascinating substance with unique properties, ice has intrigued humans since time immemorial. Unlike most other materials, ice at very low temperature is not as ordered as it could be. A collaboration between the Scuola Internazionale Superiore di Studi Avanzati (SISSA), the Abdus Salam International Centre for Theoretical Physics (ICTP), the Institute of Physics Rosario […]

Power boost thanks to gold lamellae

IMAGE: Ultra-thin gold lamellae drastically amplify the incoming terahertz pulses (red) in the underlying graphene layer, enabling efficient frequency multiplication. view more  Credit: HZDR/Werkstatt X On the electromagnetic spectrum, terahertz light is located between infrared radiation and microwaves. It holds enormous potential for tomorrow’s technologies: Among other things, it might succeed 5G by enabling extremely fast […]

Pulp succeeded in diet? Determining the slenderization of wood pulp

IMAGE: Pixel-resolved distribution analysis shows that the optical retardation decreases with increasing degree of pulp fibrillation. view more  Credit: Osaka University Osaka, Japan – Researchers from the Institute of Scientific and Industrial Research at Osaka University have devised a new method to determine the degree of fibrillation in wood pulp. By taking advantage of the intrinsic […]

Research develops new theoretical approach to manipulate light

The quest to discover pioneering new ways in which to manipulate how light travels through electromagnetic materials has taken a new, unusual twist. An innovative research project, carried out by experts from the University of Exeter, has developed a new theoretical approach to force light to travel through electromagnetic materials without any reflection. The discovery […]

No strings attached: maximizing wireless charging efficiency with multiple transmitters

IMAGE: Wireless charging has already found its way in many consumer electronics and medical applications, and maximizing efficiency when using multiple transmitters could extend its use to industrial robotics and electric… view more  Credit: Unsplash Wireless power transfer has proven to be quite useful in electronic devices such as medical implants and smartphones. In most cases, […]