Discover how to build a simple device that converts light into electricity using LEDs and diodes. This step-by-step guide demonstrates assembling an LED-diode cluster, connecting it to a capacitor for ...

Penny stocks are stocks that trade at low prices, typically below $5, and are generally considered risky as compared to their larger counterparts.

Planar micro-supercapacitors (P-MSCs), by jointly optimizing electrode intrinsic properties and interfacial structural design ...

Alibaba, Tencent, and Baidu are handing out billions in cash and prizes to attract chatbot users, highlighting how fierce ...

Engineers have long known how to steer electricity in one direction, but heat has been far harder to tame. Now a new one-way thermal “diode” promises to give designers similar control over heat flow, ...

Abstract: This letter presents a novel methodology for realizing a high-efficiency harmonic-controlled dual-band (dB) rectifier with compactness and low complexity. Specifically, the DB fundamental ...

Jewellery demand volumes declined y/y in all markets across the globe – unsurprising in the context of gold’s multiple all-time highs throughout 2025. Read more here.

I'm generally not the type to use home crafting machines. I'm more into saws, lasers and CNC-type stuff. My better half, ...