I mage of the Beta.ey S phone charger via IndieGoGo. German designer Andre Broessel has invented a means ofharnessing the sun’s energy in a solar cell. Through the startup RawLemon, Broessel wants to ...

Discover how to build a portable DIY solar charger for your smartphone using simple materials like copper foil tape, a micro-USB cable, and hot glue. This step-by-step tutorial guides you through each ...

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Summer is here, and with it comes glorious sunshine. As well as keeping your vitamin D levels topped up, the sun can be a free source of off-grid power for your gadgets. If the thought of your ...