Discover how to build a simple solar cell at home using everyday materials! This step-by-step tutorial demonstrates how to repurpose an aluminum can, a CD, copper wire, toothpaste, lemon juice, and a ...

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 ...

Lee Wallender is a home improvement writer of nearly 20 years and specializes in home remodeling, repair and maintenance. Kristin is a lead editor at Forbes Home and has nearly a decade of ...

Forbes contributors publish independent expert analyses and insights. Ian writes on fossil energies, climate, and transition to renewables. Dr. Joshua M. Pearce is the Thompson Chair in Information ...