Harvest Free Energy with a Crystal Energy Receiver May 09, 2018Gadget FreakBattery/Energy Storage, Sustainability, Alternative Energy, Consumer Electronics, Gadget Freak, Electronics & TestDrew PaulNo, this isn't hippy magic. It's an energy harvester that leverages the same technology behind old-school crystal radios. Here's how you can build one yourself.
Wireless Power with a DIY Tesla Coil April 04, 2018Gadget FreakBattery/Energy Storage, Consumer Electronics, Gadget Freak, Electronics & TestDrew PaulWant to light up a bulb with no wires, or charge a cell phone without plugging it in. It's easy when you make your own Tesla Coil. Here's how.
How to Build an Electromagnetic Levitation Device December 14, 2017Gadget FreakConsumer Electronics, Electronics & TestDrew PaulNeed to take some weight off? With some circuitry know-how, a magnet, and a Hall Effect sensor you can build you own electromagnetic levitation device
