Learn how to build a simple solar cell at home using copper tape, plastic cups, and water. This step-by-step science experiment demonstrates how to harness solar energy to generate electricity.

Here is the simple solution to make an automatic solar powered led lamp. It automatically switches on two high power White LEDs in the evening and stays on for 6 hours using a 6 volt 4.5 Ah ...

A solar eclipse is a rare weather phenomenon that is a sight to behold, but viewing an eclipse can be harmful to your eyes if the right precautions are not taken. Looking directly at the sun can cause ...

Conventional solar panels cannot completely utilise sunlight throughout the day since they are stuck in one location. For ...

This close-up through the polycarbonate shows the absorber screen, the foam sealer molding, screws with EPDM washers, battens and a bottom vent. After walking into my workshop one December morning and ...

[Michael Mogenson] built Firefly Jar – a simple circuit to light up flickering LEDs inside a standard Mason Jar, to give away to friends and family for the holidays. Given it’s simplicity and ...

Dear Jim: We have teenage daughters who take long showers. Our water heating costs are sky-high. We are on a tight budget, but want to use some solar water heating. Is there a system we can make ...