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Daily tech news

Chip-based system for terahertz waves could enable more efficient, sensitive electronics
Researchers developed a low-cost, scalable terahertz amplifier that could be used to make antenna arrays that can steer and focus high-frequency terahertz waves, for applications like high-resolution radar, high-speed communications, and medical imaging.
Cooling materials -- Out of the 3D printer
Rapid, localized heat management is essential for electronic devices and could have applications ranging from wearable materials to burn treatment. While so-called thermoelectric materials convert temperature differences to electrical voltage and vice versa, their efficiency is often limited, and their production is costly and wasteful. Researchers have now used a 3D printing technique to fabricate […]
A miniature swimming robot inspired by marine flatworms
Engineers have developed a versatile swimming robot that nimbly navigates cluttered water surfaces. Inspired by marine flatworms, the innovative device offers new possibilities for environmental monitoring and ecological research.
Towards new battery tech: Chemists demonstrate high-performance sodium-ion cathode
For decades, scientists have sought ways to counter our dependence on lithium-ion batteries. These traditional, rechargeable batteries energize today's most ubiquitous consumer electronics -- from laptops to cell phones to electric cars. But raw lithium is expensive and is often sourced through fragile geopolitical networks. This month, chemists have announced an exciting alternative that relies […]
For success in bioelectronics, build with nature-inspired design
Researchers have 3D printed bioelectronic scaffolds that have the properties cells need to form new tissue.
Magnetic switch traps quantum information carriers in one dimension
A quantum 'miracle material' could support magnetic switching, a team of researchers has shown.

Ferromagnetic Resonance (FMR) spectroscopy

Ferromagnetic resonance (FMR) is a powerful tool for investigating magnetism in materials. By applying a microwave field and measuring its absorption, FMR reveals details like a material's magnetization and damping. This excerpt explores the theory behind FMR, including the Kittel formula that describes the resonance condition. We'll also delve into ...