Learn how to make a simple hand-cranked power generator from scratch using basic materials like DC motors, a wooden base, an LED panel, and common household items. This step-by-step DIY project ...

Restoring an old French hand-cranked grinder, possibly dating from 1933. This video documents the disassembly process, revealing unexpected complexity with the inclusion of ball bearings in the ...

This emergency radio is the ultimate tool to have in your toolbox when you’re faced with questionable weather, or you’re out ...

One of the greatest things you can gift someone this holiday season is peace of mind. This rings especially true for anyone on your holiday shopping list that’s an emergency prepper. Whether you know ...

YouTube creator and self-taught engineer Jeremy Fielding built his regenerative braking rig from spare parts, then made a ...

Max Allegri reveals what he said to get sent off during the chaotic finale of AC Milan’s victory over Lazio and why Adrien Rabiot ‘makes the difference’ for his team. It was a difficult first half, as ...

DON J. LONG passed away on November 24, 2025, at his home in Sherwood, Ark. He was 91 years old. Don was born at sunrise on Sunday, July 8, 1934, to Myrtle Gower Long and James Clifton Long, in the ...

Legendary Italian coach Fabio Capello has praised Roma boss Gian Piero Gasperini for his impact in guiding the Giallorossi to the top of the Serie A table. The former AC Milan and Roma coach drew ...

The theory behind hydropower is very simple: water obeys gravity and imparts the gained kinetic energy onto a turbine, which subsequently drives a generator.  The devil here is, of course, in all ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...